Advantages of the product: The appearance is ergonomic, the tire pressure value can be quickly determined, the LCD screen is displayed, the reading is intuitive, and the test automatically keeps the current data for the test reading.
Measuring range: 2.0-99.5 PSI OR 0.15-7.00 BAR
1 Press the button next to power on, display the last test unit after power on, press “ON” button to perform unit conversion (PSI→BAR→KPA→Kg/cm2), and the unit change at the same time, the display value will be changed accordingly.
2 Align the nozzle of the pressure gauge with the valve of the tire and press it to ensure good contact between the nozzle and the valve. There is no leaking sound. After 3 seconds, remove the tire pressure gauge from the valve and read the exact tire. Tire pressure, the data is kept for 15 seconds. After the data is cleared, the pressure gauge is moved to other tires to continue testing.
3 The pressure gauge is turned on. If the button is not detected for 60 seconds, it will be automatically turned off. You can also press and hold the power button for 3 seconds to manually close it.
Power supply: CR2032 3V button battery
Product size: 143x45x23mm
Standard configuration: bare watch (with battery inside), manual, certificate (warranty card)
Packing: single blister card


Energizer Smart Home is a range of smart LED technology bought to you by household brand, Energizer. Launched in 2020 into high street retailers, Energizer Smart aims to bring the latest in smart technology to homes across the world. Affordable without compromising on quality, the range of products is suitable for everyday use through the power of our app, which is available on iOS and Android devices.
One of the most powerful reasons to invest in the smart home category is the fact that it is the fastest-growing category in the UK at the moment. The new Energizer Smart range has been carefully designed for use in domestic and commercial settings at an affordable price point, without compromising on quality.
All items come in retail-ready packaging, suitable to be sold in any retail or wholesale market.


Dare Partners with Sceptre!
As of today,
Dare will be working with Sceptre to help promote their gaming products in the gaming industry. From TV's, computer hardware, to now the ultimate graphical gaming monitor to hit the market, we've partnered together to showcase today's best players play on the best monitors. From the casual monitor, to a curved monitor in 1080p at 144hz, you the consumer can feel the real and best gaming experience.
"Sceptre is a leading innovator for LCD/HDTV for over 30 years. Sceptre's headquarter is located in the City of Industry, the hub of the computer industry."
For more than 30 years, Sceptre's constant dedication to improving new and advanced technology has allowed a strong platform to build an empire of new and advanced display technology. Since, the company ahs made many new innovative products before their time and caught many competitors by suprise. Releasing pioneering CRT technology in 1984 has lead Sceptre's Research and Development labs to undergo a transformation that tours LCD technology. Sceptre's research adn development lab's first generation of LCD's was introduced as early as 1993, with a proven track record leading up to today's technological innovations such as LED and three-dimensional displays.
Sceptre is sold in Walmart, Best Buy, Costco, Kmart, Target, Sears and online in Amazon, Newegg and other stares. You can visit their site HERE.


SolvElectric Technologies was established in 1991 as a family business in Szeged, Hungary. The company has its own 1300 sqm production hall in the DÉLÉP Industrial Park. SolvElectric is made up of 3 main departments: R&D and Production; Service and Maintenance and Sales.
R&D and Production: we conduct industrial research and design unique equipment from the idea stage all the way to a finished product. We can optimize the prototype product for series production and, if necessary, develop test procedures and equipment for quality control as well.
Service and Maintenance: All devices manufactured or distributed by us are commissioned and maintained as necessary in anywhere in Hungary during the warranty period and beyond. We also offer an after sales service.
Sales: in addition to our own products, it deals with the distribution of uninterruptible power supplies, 700VA-500Kva, hybrid and island inverters and the LiFePo energy storage systems that can be connected to them.
List of our own unique products:
– Design and manufacture of uninterruptible power supplies in 700-10000VA industrial 19″ rack systems.
– LED lighting systems (also with solar battery energy production and storage)
– Taranis LiFePO energy storage systems with a hybrid inverter solution
– Battery Management System (BMS) for modular Lithium energy storage systems with active balancing up to 48V and passive cell balancing up to 750V
– We can provide a customized communication interface for our BMS systems
– SolveAir air disinfection product family – for disinfection of ozone-free air in closed spaces in the presence of people
Diagnosis, re-design and repair of batteries for Szegedi Közlekedési Társaság (Public Transportation Company of Szeged)
Electric bus renovation for Ikarus bus manufacturing company
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Payments and Security
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- Zero rotary backlash and high repeatability
- High dynamic response and high speed stability
- All-in-one design and power-off protection
The RGD Series Direct Drive Rotary Gripper RGD 5 14 for High Precision Manufacturing Applications
1. Zero Rotary Backlash/High Repeatability: The RGD Series adopts direct drive rotary motors to achieve zero rotary backlash and a rotary resolution of up to 0.01 degrees, which is suitable for rotary positioning scenarios in semiconductor production.
2. High Dynamic Response/High Speed Stability: The precision direct drive technology, combined with DH Robotics excellent drive control, enables perfect control of gripping and rotation. The rotation speed can reach up to 1500 degrees per second.
3. All-in-One Design/Power-off Protection: The gripper adopts the design of integrating the dual servo system of gripping and rotation with the drive control module, which is smaller and more compact, and is applicable to more scenarios. Brakes are optional to meet the requirements of various applications.
The RGD Gripper, with its direct drive technology, can provide greatly improved rotary accuracy, which can be used in scenarios such as the high precision positioning assembly, transport, and deflection correction of 3C electronics and semiconductors.
If there are usage problems, customers are advised to log in to the official website in advance to download product related information such as usage instructions and 3D drawings. If the product is damaged due to customer wrong use, no return or refund will be accepted.
1x RGD gripper
1x 5 meter cable
Gripping Force (Per Jaw): 2.5 N
Stroke: 14 mm
Rated Torque: 0.25 Nm
Peak Torque: 0.5 Nm
Rotary Range: Infinite Rotation
Recommended Workpiece Weight: 0.05 kg
Maximum Rotation Speed: 1500 Degrees/Second
Rotary Backlash: Zero Backlash
Repeat Accuracy (Swiveling): 0.1 Degrees
Repeat Accuracy (Position): 0.02 mm
Opening/Closing Time: 0.5 Seconds/0.5 Seconds
Weight: 0.86 kg (Without Brake), 0.88 kg (With Brake)
Size: 149 mm x 50 mm x 50 mm (Without Brake/With Brake, Same Size)
Communication Interface: Modbus RTU (RS485)
Rated Voltage: 24 V DC (10%)
Rated Current: 1.2 A
Peak Current: 2.5 A
IP Class: IP40
Recommended Environment: 0-40 Degrees Celsius, Under 85% Relative Humidity
Certification: CE, FCC, RoHS


- ALL PRICES IN AUD - ALL ORDERS SHIPPED DHL EXPRESS (2-5 BUSINESS DAYS) -
Uptown Tech JILI is a brand new device by Uptown tech that has a 1200mAh battery backup, and is designed to charge your JUUL on the go. The JILI holds one JUUL device and two pods. An ultra-thin silhouette looks awesome from any angle.
Uptown Tech has made the device with two LED screen readouts, to provide the user information about how much charge is left in the PCC as well as how much time left to fully charge your JUUL. Additionally, this battery bank is thin enough to slide into your pocket or handbag.
The JILI is a personal charging case with personality. Meant for use with the JUUL vape device, you can re-charge your JUUL on the go with JILI!
To use JILI properly, please follow the instructions below:
*JUUL device and pods sold separately*
You must be at least 18 years old to receive PODVAPES emails.
You must be eighteen(18)years of age or over to enter our website.


With the vast amount of detail involved in the various technologies, we will be generalizing for brevity.
The first decision to be made here is between hardware, software, or hybrid-based solution. This week we will discuss the hardware solution.
Hardware-based VPNs usually come with a routing device or firewall and have the benefit of assisting in making the security decisions on whether to allow or disallow a VPN connection at the edge of the network. Usually located either facing the internet or very near the gateway. The task of segmenting the network is made easier with this design, due to the location of the VPN device.
Enterprise VPN devices usually have higher throughput as they have processors dedicated to the functions of encrypting, decrypting, and decision-making related to VPNs. A lot of malware tracking and reporting has the benefit of being integrated with the general reporting for the device’s specific function. For instance, if the VPN is on the firewall, you can get an overview of the traffic path that includes a view of the non-VPN portion of the traffic.
As a solution used for a remote worker
VPN hardware devices for remote workers are less common, but when used, come with similar benefits. Especially inviting, in this solution, is the ability to segment the remote worker from the home network, which will be shared with devices not maintained by your company. This prevents a device, sharing a network with the remote worker, getting infected, and then propagating the infection to the remote worker’s device and then onto the company network.
A drawback as a solution for remote workers is the fact that it could carry a higher support burden. Unless installed onsite by an engineer, you would need to walk a person through the installation.
Users have also gotten used to making use of their Wi-Fi to have the ability to work in different areas of their house. The steps to expand the VPN solution onto Wi-Fi would require you to either limit them to a dedicated location, set up a second segment on their Wi-Fi (if supported), or a whole new Wi-Fi network dedicated to this role.
One benefit a hardware device as a remote worker solution does have is the ability to make decisions locally before traversing the network. It’s commonplace for remote working solutions to include policy-based or inspection-based decision-making. Traffic is allowed or blocked based on certain criteria which could include, the device having the required updates, time of day, and/or the actual data being sent which gets inspected for malware. This could cause a bottleneck if the decision is made remotely by the destination device. By blocking traffic locally, also reduces unnecessary processing and network utilization on the destination network, for traffic that will ultimately be blocked.
In terms of cost comparisons, although VPN hardware devices often come at a higher cost, most firewalls and routing devices often come with VPN licensing included when you purchase them. However, the cost of administering and maintaining needs to be considered.
Next week we will have a look at Software solutions for remote workers as well as hybrid solutions.


The main advantage of variable-voltage / wattage electronic cigarettes is, that they produce more vapor than the small E-cigs most people buy when they first start vaping (E.G. the cigarette look a like).
To understand the difference, let us take a look at the specifications of a standard electronic cigarette;
most devices use 3.7 volt batteries and 2.4Ω atomisers / tanks, and so producing a little under 5.5 watts of power.
To get a little bit more out of their E-cig, some vapers (Electronic Cigarette users) buy larger batteries and combine them with low resistance atomizers / tanks.(1.8Ω)
When you use a 3.7 volt battery with for instance a 1.5 Ω clearomiser / tank, the vapour production of the E-cig increases to over 9 watts.
This still doesn’t equal the performance a variable voltage / wattage e-cig can achieve (up to 12 watts at 6 volts with a 3.0Ω clearomiser / tank).
How do these E-Cigs work?
Most variable-voltage / wattage E-cigs use 3.7 volt batteries, just like standard E-cigs.
The difference is that a variable voltage / wattage E-cig has a circuit that stores and regulates power from the battery, delivering it to the atomiser / tank at the voltage / wattage you choose.
Many variable voltage / wattage E-cigs also have micro processors for safety (of the battery) and control over vapor production.
These advanced internal electronics often make variable voltage / wattage E-cigs more expensive than standard E-cigs.
Description: Snowwolf Xfeng 230W Mod follows Snowwolf's classic clean-cut design. Representing the wolf temperament, with stylish front and back panels, reflecting the Zodiac. Xfeng Mod is powered by dual 18650 batteries…


About Self-Organizing Migrating Algorithm
Swarm-based algorithms have become one of the foremost researched and applied heuristics in the field of evolutionary computation within the past decade. One of the new and novel approaches is that of the self-organizing migrating algorithm (SOMA). Initially developed and published in 2001 by Prof. Ivan Zelinka, SOMA has been actively researched by a select group of researchers over the past decade and a half.
SOMA is conceptualized on a predator/prey relationship, where the sampling of the search space is conducted on a multi-dimensional facet, with the dimension selection conducted pre-sampling, using a randomly generated PRT vector. Two unique aspects of SOMA, which differentiate it from other swarm-based algorithms, are the creation and application of the PRT vector, and the path length, which specifies the distance and sampling required within a particular dimension.
Over the past few years, SOMA has been modified to solve combinatorial optimization problems. This discrete variant so-called discrete self-organizing migrating algorithm (DSOMA) has been proven to be robust and efficient.
With its ever-expanding applications and utilization, it was thought beneficial and timely to produce a collated work of all the active applications of SOMA, which shows its current state of the art. To this effect, we have reached out and have obtained original research topics in SOMA and its application from a very diverse group of academics and researchers.
Self-Organizing Migrating Algorithm: Methodology and Implementation
SOMA — Self-Organizing Migrating Algorithm
New Optimization Techniques in Engineering pp 167-217


ekey uno wall power supply for rechargeable battery
You can use the wall power supply to charge the rechargeable battery of the ekey uno rechargeable fingerprint scanner, wireless, quickly and efficiently. With average use, this is charged every 6 months. The full battery charging time is approx. 5 hours.
- Color: white
- Cable: 1.5 m with plug
- Output voltage: 12 VDC
- Output current: 1000 mA
Wall power supply with 1.5 m cable for the rechargeable battery of the wireless fingerprint scanner
Battery status of the ekey uno rechargeable battery
The ekey uno rechargeable fingerprint scanner, wireless, gives you a signal when the level of the rechargeable battery reaches 20%. The top-left and bottom-right segments of the fingerprint scanner’s signaling segments light up red.
Charging the ekey uno rechargeable battery
To charge the ekey uno rechargeable battery, please wait until it has reached room temperature again. During the charging process, the rechargeable battery LED flashes red and green. As soon as the rechargeable battery is fully charged, it will glow continuously green. You can easily charge the rechargeable battery overnight and thus quickly restore the wireless battery operation of the fingerprint scanner. It takes about 5 hours to fully charge the rechargeable battery.
The rechargeable battery is designed for approx. 350 charging cycles.
Only charge the rechargeable battery with the appropriate wall power supply. Attach the bottom cap to the ekey uno while charging the rechargeable battery. This will keep the ekey uno protected against the ingress of water.
|Maximum supply voltage
|Minimum supply voltage
|Maximum operating temperature
|Minimum operating temperature


Minimum of 5 years experience in installing and trouble-shooting UPS systems from 1kVA to
Minimum: S4 Diploma in Electrical Engineering.
Thorough understanding and solid knowledge of Electronics, Digital Systems and Power Electronic Systems.
Thorough and broad knowledge of Semi-Conductor Components, such as IGBTs.
Ability to research Semiconductor Specifications and Source Suitable Replacements.
Must have drivers licence.
Highly driven and self-motivated individual and capable of working productively on their own.
Ability to read, analyse and understand Circuit Diagrams.
Must be presentable and take pride in their work.
Trouble-shoot UPSs and resolve problems on-site, unassisted.
Install 3-phase and single phase UPS systems.
Lift batteries up to 30kgs unassisted.
Will need to travel outside SA from time to time, must have valid passport.
Organise and manage a workshop for carry-in UPS repairs.
Site assessments, to determine total load for UPS sizing.


amoner Wireless Charger
- DIFFERENT WIRELESS CHARGING MODES -- 7.5W wireless charging mode for iPhone Xs Max/Xs/XR/X/8/8Plus;10W, 5W standard charging mode for other phones which support wireless charge.
- 6 MULTIPLE SAFETY PROTECTION -- Input under-voltage protection, input overcurrent protection, metal foreign body detection, output overvoltage protection, temperature control protection, anti-interference protection.
- ONE-YEAR WARRANTY -- We strive to provide the best quality, ONE-YEAR warranty for free replacement or full refund if for any problem. If you have any question, just contact us.


This knowledge has been around for ages. The discovery of the electromagnetic wave, was assumed by James Maxwell and experimentally confirmed by Heinrich Hertz about 150 years ago. This led to the invention of the radio and later TV as well as anything that broadcasts a signal today.
But Watch this video…
Eric Giler wants to untangle our wired lives with cable-free electric power. Here, he covers what this sci-fi tech offers, and demos MIT’s breakthrough version, WiTricity — a near-to-market invention that may soon recharge your cell phone, car, pacemaker.
About Eric Giler
As the CEO of MIT-inspired WiTricity, Eric Giler has a plan to beam electric power through the air to wirelessly power your laptop or recharge your car. You may never plug in again. Full bio and more links


ASUS DUAL GeForce GTX 1060 GPU
DUAL is ASUS’ 1060 card that comes at a reduced price when compared to their leading Strix 1060 series. It may not push clock speeds like the Strix does but it is more than capable of dominating next-generation games, displaying them with 1060 capabilities. It features a separate design that comes in a pure white, a dual fan setup for cooling and has been built with premium quality components. It might be ASUS’ 1060 cheap option, but it is equipped with a truly impressive performance output.
ENHANCED GTX 1060 COOLING
Triple Wing-Blade GPU Cooling
DirectCU III features triple 0dB fans engineered with a patented wing-blade design that delivers maximum air flow and improved 105% static pressure over the heat sink of this GTX 1060, while operating at 3X quieter volumes than reference cards. The 0dB fans also let you enjoy games in complete silence and make DirectCU III the coolest and quietest graphics card in the market.
GPU PERFORMANCE TWEAKING
Keep Track Of Your DUAL 1060 Performance
Tweak II technology will allow you to view any and all statistics about your 1060 graphics card, including GPU and memory clock speeds, GPU voltage, fan speeds and more. It also gives the ability to set particular modes on you GTX 1060 card, for example the “Gaming Booster” mode helps to apply numerous optimizations as well as execute memory defragmentation, which in-turn maximizes performance and system responsiveness – enhancing gaming experiences – control your 1060.
NEXT-GEN GRAPHICS CARDS
Premium 1060 Quality & Top Reliability
ASUS graphics cards are produced using Auto-Extreme Technology, an industry-first 100% automated production process, and features premium Super Alloy Power II components. These components enhance efficiency, reduce power loss, decrease component buzzing under load, and lower thermal temperatures for unsurpassed quality and reliability in your GTX 1060.
GTX 1060 CONNECTIONS
2x HDMI 2.0b / 2x DisplayPort 1.4 / 1x Dual-Link DVI


Toshiba unveils the first large-screen glasses-free 3D TV in Asia
The 55RZ1 offers innovative first-class technology in a premium design delivering a 3D experience without the need for 3D glasses
Singapore, 3 May 2012 – Toshiba Singapore Pte., Ltd today announced the launch of the first large-screen glasses-free 3D TV in Asia, the 139cm (55") diagonal 55RZ1. This breakthrough TV, the first ever with a Quad Full HD screen, delivers an immersive 3D TV experience that can be enjoyed by a large group of viewers, and also displays 2D content at four times (Quad) Full HD resolution.
The secret of the 55RZ1’s glasses-free 3D performance is Toshiba’s high-performance multi-processor platform, the REGZA ENGINE CEVO DUO S. This latest Toshiba innovation in imaging technology also supports such video enhancements as image restoration, increased colour gradation and boosted contrast improvement, and assures the 55RZ1 creates the highest quality video display ever seen. The 55RZ1 will be available at the end of May in most Asian countries.
A new era for 3D TVWith the 55RZ1, Toshiba has drawn on its industry-leading capabilities in imaging algorithms and processor technologies to calculate multiple viewpoints for stereoscopic images and to display them at very high picture quality on a large screen. The array of lenticular lens integrated into the 55RZ1 is the first ever in such a large-screen TV.
Sophisticated lenticular lens technology delivers multiple views
3D technology is based on the stereoscopic principle of simultaneously delivering slightly offset (parallax) images to the left and right eyes. The brain then superposes the images, creating the 3D effect. To achieve this without any need for dedicated glasses, lens must accurately guide the dedicated images to the viewer’s eyes. The 55RZ1’s Integral Imaging technology, powered by the REGZA ENGINE CEVO DUO S, delivers nine views that create multiple wide-angle viewing zones in front of the glasses-free 3D TV. This not only creates a stunning, glasses-free 3D image, it allows a large group of viewers, each facing the screen from a different angle, to share the 3D experience.
Face tracking optimises glasses-free 3D experience
To optimise viewing zones in respect and align them with the viewers’ actual positions in front of the TV, the 55RZ1 features a face tracking application. At the push of the remote, it detects the viewers’ position and sets up the total viewing experience.
Quad Full HD screen for excellent picture quality in 3D and 2D
Delivering nine views simultaneously in high definition picture quality is technically challenging. Toshiba engineered the solution with a 3,840 x 2,160 pixel panel, the equivalent to a Quad Full HD resolution. An additional bonus of the 55RZ1’s high resolution screen is the ability to display 2D content in Quad Full HD resolution. In other words, photos captured with an 8-megapixel camera can be displayed on screen with almost no compromise in image quality.
By using complex algorithms, Toshiba’s Resolution+ technology converts content, such as TV programmes in SD or HD resolution – as well as DVD or Blu-rayTM content in four times Full HD resolution – to make full use of the high definition of the Quad Full HD display.
REGZA ENGINE CEVO DUO S: the powerhouse behind the innovative features
The REGZA ENGINE CEVO DUO S, Toshiba’s high-performance multi-processor platform, is the powerhouse of the 55RZ1. The REGZA ENGINE CEVO DUO S’s outstanding technology delivers the massive calculating power needed to manage Toshiba’s complex algorithms and generate the depth information essential for creating the 3D effect and calculating nine different viewing angles.
Toshiba is a world leader and innovator in pioneering high technology, a diversified manufacturer and marketer of advanced electronic and electrical products spanning digital consumer products; electronic devices and components; power systems, including nuclear energy; industrial and social infrastructure systems; and home appliances.
Toshiba was founded in 1875, and today operates a global network of more than 490 companies, with 203,000 employees worldwide and annual sales surpassing 6.3 trillion yen (US$77 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm.
- The product specifications, configurations and the availability of systems/components/options described here are subject to change without notice.
- There is possibility that some of the contents may not be played normally. Subject to hardware and software specifications.
Blu-ray DiscTM and Blu-rayTM are trademarks of Blu-ray Disc Association.All other product names may be trademarks of their respective companies.
EAudyssey EQ®Manufactured under license from Audyssey Laboratories.U.S. and foreign patents pending.Audyssey EQ is a registered trademark of Audyssey Laboratories.EDolby® DigitalDolby and the double-D symbol are registered trademarks of Dolby Laboratories.EDivX HDDivX®, DivX Certified® and associated logos are trademarks of Rovi Corporation or its subsidiaries and are used under license.DivX Certified® to play DivX® video up to HD 1080p, including premium content.All trademarks are the property of their respective owners.
If a 3D image still does not look right, perform 3D Viewing Position Test.
Some individuals may experience health-related complications when exposed to certain 3D images. Please refrain from viewing 3D content if you feel out of sorts. Anyone who experiences any physical problem should immediately stop viewing 3D content and consult a physician. Perception of 3D effects will differ from person to person and according to content. Due to the possibility of impact on vision development, viewers of 3D video images should be aged 6 or older. Please refer to the 3D viewing precautions in the manual when viewing 3D images.


HomeStoreThe 9 Best Electric Soldering Iron Gun for Beginners and Experts
The 9 Best Electric Soldering Iron Gun for Beginners and Experts
July 12, 2021
Welcome to the Thomas guide to the best soldering iron 2021. Thomas has been connecting North American industrial buyers and suppliers for more than 120 years. When you purchase products through our independent recommendations, we may earn an affiliate commission.
With many industries employing the use of soldering irons, it’s no surprise that this tool, first mass-produced in 1894, is as popular as it is and a staple in the toolbox of many workmen, engineers, and homeowners alike. In addition to electricians who are commonly associated with this handy device, and use it for splicing and fusing wires, people in auto repair, roofing, plumbers, and even jewelers all swear by their trusty soldering irons.
Working on metal gutters, stained glass and mosaics, printed circuit boards (PCBs), and vacuum tubes all, at times, require the use of a soldering iron for repairs and maintenance. If you’re on the hunt for a new soldering iron, or want to buy your first one, our list of the best nine models available on Amazon has something for everyone, from beginners to professionals.
1. Best-Rated Soldering Iron—Anbes Soldering Iron Kit
With over 10,500 reviews, the Amazon’s Choice Anbes soldering iron kit is a solid pick for beginners and experts alike. This economical 60W model has adjustable temperature control, a desoldering pump, a stand, tweezers, and comes with five different soldering tips too. “This kit has already paid for itself several times over in the first week I’ve owned it,” reported one happy buyer. “It heats up fast, the tips are nice, and the included solder does the job… For someone who repairs electronics, there is literally no reason not to buy this kit.”
2. Best Soldering Iron for Beginners—SREMTCH Electronics Soldering Iron Kit
If you have no idea where to start when it comes to soldering, this soldering iron kit from SREMTCH will make it easy for you. As a contender for the best DIY soldering iron, this thing has a handy LCD digital display that clearly indicates the temperature, a temperature adjusting knob, an intuitive and simple on/off switch, a grip handle, a stand with a sponge, and even comes with wire and an array of other tools you may need for your soldering projects. What’s more, it comes with clear instructions (which are also displayed on the Amazon product page for your ease of reference). “Really good starter kit,” expressed one buyer. “I’m just experimenting with soldering and, in my opinion, this kit gives you everything you need to get started at a very reasonable price.”
3. Best Professional Soldering Iron—Hakko Soldering Iron
For pros who know what they’re doing, this best quality soldering iron from Hakko is more your bag. With a 97% positive rating, this top tool from a brand that knows its stuff is lightweight, ergonomic, has variable temperature control and features a ceramic heater and advanced electronic controls. Many buyers feel that it is one of the best soldering irons out there, especially for stained glass projects. One reviewer, who does vintage train repairs with lots of wire soldering and occasionally brass or copper metalworking, explained that comparing this tool to cheaper models was “like comparing a Porsche to a Rambler,” adding, “Tinning wire ends has never been easier or quicker. I barely have to touch a join before the solder flows, and stays flowing until I remove the iron… A high-quality tool, well worth the higher price.”
4. Best Budget Soldering Iron—LDK Soldering Iron Kit
If you’d like to try your hand at soldering, or perhaps occasionally need to solder something here and there, there’s not much point buying a top dollar soldering iron—at least not yet. In the meantime, the LDK soldering iron kit, which is Amazon’s Choice for top electric soldering iron, will do the job nicely, and will hardly make a dent in your finances. This economical kit comes with five replacement iron tips and a tube of solder wire to get you started. Understandably, at under $10, there are no fancy bells and whistles, but, the general consensus is that it heats up quickly and works well. One reviewer wrote, “I’m no soldering pro but I’ve got to think this kit is a great value! I’ve used it to solder some led strips and circuit wiring and had no issues at all (and this was my first time soldering anything at all).”
5. Best Soldering Iron for Home Use—Weller Soldering Iron
Heating up in a mere 35 seconds, this WPS18MP soldering iron from Weller, a tool company that has been around since the 40s, gives expensive soldering irons a run for their money. One of its best features, aside from quick heating and easy jack-and-plug tip change capability, is its light weight and easy-to-grip co-molded design that gives you ultimate control while working. There’s a simple light that turns from red to green to let you know when it’s ready for use, and also a bright working light to give you better visibility on what you’re working on. “Met my expectations and I would recommend it to anyone that needs a quality solder job every time,” wrote one satisfied shopper, and another added that it’s a “nice product at a very reasonable price. For home use, you can’t go wrong.”
6. Best Butane Soldering Iron—LEXIVON Cordless Soldering Iron Kit
Many buyers of this LEXIVON butane soldering iron felt that the last thing they needed when in the middle of an intricate soldering job was the wire getting in the way and so this cordless version suited them perfectly. Though a professional kit and not exactly made for beginners and novices, it’s not too hard to use with some basic experience, and everything you need to get soldering, apart from the butane, is in the kit—and it all comes in a convenient carry case. One buyer wrote, “I’m using this soldering tool daily in my shop, and it’s absolutely a lifesaver. Portable and heats up quickly, even better than my usual electric one. Definitely a high-quality tool.” The same customer also helpfully recommended using refined butane fuel to avoid igniting issues.
7. Best Soldering Iron for SMD—YIHUA 939D+ Digital Soldering Station
When it comes to soldering SMD, precision, temperature control, and tweezers are just a few of the things that can come in particularly helpful, and this digital soldering station has it all. Made with professionals in mind, this sturdy and durable device can live up to daily use, and then some. One satisfied customer, who used this to build a mechanical keyboard macro pad with great results, exclaimed, “Man, it’s amazing! The temperature control is awesome! It gets to temp very quickly and also keeps the temperature while you are working with it.” Another buyer commented that they “soldered, removed, and reworked some SMD components, through-hole, soldered wires from 28g to 8g, and it had no problem unsoldering 8g wire from high dollar Lipo battery packs that use high-temp solder.”
8. Best Soldering Iron for Automotive Wiring—Toolour Soldering Gun Kit
Though many will never stray from their trusty soldering irons, using a soldering gun, like this highly-rated model from Toolour, is almost an entirely different experience and provides other perks that many, including those who work on automotive wiring, swear by. For starters, the way it’s held and operated, some feel, provides more control, is safer, and far easier to operate. In addition, it’s a total breeze to use with one hand. “Where has this been all my life?” raved one electrician who has used numerous soldering irons throughout their career. “This is literally one-handed. Just touch it to the wire connection, squeeze the trigger, and done! So easy, my teenage boy used it to change out his car stereo.”
9. Best Soldering Iron Station—Weller Soldering Iron Station
Another top device from Weller, the WLC100 40W soldering iron is Amazon’s Choice for best soldering station with many stellar reviews from pros and DIYers alike. Its variable power control (5–40W), very high-temperature capacity (up to 900°F), built-in safety stand and cleaning sponge, and reasonable price, make this device an extremely popular option. In addition, the company has a great reputation and fine warranty, which is always a plus. “I am well pleased with it, and can recommend it very highly,” reported one customer who used to be employed at naval weapons and nuclear x-ray assembly facilities. “[It’s] just as well built as the larger units with more features, and is rated up to 300W. But for basic electronic work on circuit boards, jewelry making and repair, as well as most model work, this unit will do it all.”
Types of Soldering Irons
Soldering irons usually come with around 15–35 watts of power and are able to reach temperatures of 392–896°F. The simpler models have a standard temperature, whereas more advanced versions feature adjustable temperature controls and even automatic temperature adjustment. Although most commonly corded, soldering irons also come in rechargeable cordless, and USB charging versions, too. Butane soldering irons powered by a small self-contained gas tank are another popular cordless option.
Providing more control over the adjustment of power and temperature are soldering stations that have their own electrical power supply, tips with temperature sensors, and come with a stand and a wet sponge for easy clean-up. These soldering iron stations are commonly used by those working on electrical components, PCBs, and surface mount devices (SMDs). Soldering guns are also available and commonly used in situations where more heat is required than a soldering iron can provide, such as in heavy electronic and sheet metal applications.
Different sizes and types of soldering iron tips are available for various tasks, including magnetized, pyramid, chisel, conical, and concave tips, tweezers, and knives, that can be made of copper, iron-plated copper, solid iron, and steel, although the latter two tend to store less heat and are not preferred by professionals.
The Best Soldering Iron 2021—Summary
For the best quality soldering iron for professional use, you can’t beat this Hakko model, but for something a little more economical, with the added perk of being cordless, you’re guaranteed to love the LEXIVON butane soldering iron. We hope our review of the best soldering iron has been helpful. For more suppliers of related products, including rechargeable cordless soldering irons, portable soldering irons, soldering iron tips, soldering guns, ultrasonic soldering equipment, and other soldering tools, consult our additional guides, or visit the Thomas Supplier Discovery Platform.


Now your hair won't fall flat -- even if you're in Prague.
The dual power converter kit is equipped with one converter and four adapter plugs. It features an auto-reset fuse and two prong plug that fits most European outlets.
How to operate:
Switch to "Hi" when higher wattage appliances are being used, such as hair dryers
Set for "Lo" when using radios, shavers and the like
- Indicator light shows whether high or low output is being used
- Internal circuit breaker protects the converter or appliance, and compensates for accidental overload
- Set includes four adapter plugs for use in almost all countries and a convenient zippered travel case
- Designed for use with dual voltage appliances
- Includes a convenient travel case


The PDL-AFP LIVE AIR 2 is a brand new wireless follow focus system which completely eliminates the need for external D-Tap power. The improvements over the previous Live Air generation include a new removable battery system for the motor and controller, higher torque motors, more responsive controllers, more mounting options, and a smaller motor. Combining the advantages of REMOTE LIVE and REMOTE AIR, we designed a system which enables a single-user to wirelessly control focus for a variety of different shooting scenarios.
328 ft. Wireless Transmission with Built-In Antenna
The more advanced data technology makes the Bluetooth transmission distance increase by 10 times, and PDL-AFP linear control distance can reach 328 feet.
The Motor uses a dual Li-42B rechargable battery. It’s easy to recharge and mount into the motor. Both the Live Air controller and motor use the Li42B 3.7V 600mAh changeable battery with a runtime of up to 6 hours.
An All-In-One Solution
The best companion for LIVE AIR 2 is RIG AIR camera cage, which is suitable for a variety of DSLR / mirrorless cameras. The RIG AIR allows you to mount different types of accessories to your camera suck as an external monitor or shotgun microphone.
In addition to longer battery life, the torque and power are directly increased by 20%. The response is faster and the latency is lower.
When using the Live Air Pro 2 with the RIG AIR, you can securly mount the controller to any of the 1/4-20 screw threads on the cage frame. The Live Air controller now features a mounting hole which can be used to attach the controller to the cage.
Single Multifunctional Button
The Functions of LIVE AIR 2 include automatic/manual calibration, remove the lens stroke, restore the lens stroke when power off and so on.It can complete several instructions by pressing one button. The indicator can visually display the current state of the motor or controller such as the battery level.
The iOS APP can directly control the motor, easily set A and B points, set a linear zoom speed, and diplay lens data.
Compatible with a Variety of Setups
The controller can be clamped on a 15-32mm tube and provide wireless lens control with equipment such as a gimbal stabiliser, Steadicam, shoulder rig, tripod arm, jib, etc.


Atmospheric Reconnaissance & Reporting Of Wildfires
ARROW – Atmospheric Reconnaissance & Reporting Of Wildfires is an Early Detection System of Unmanned Aerial Vehicles.
ARROW is a “four-layer” system of aerial based sensors. A variety of fixed wing, autonomous drone aircraft, each with different flight characteristics will be employed in order to achieve the goal of consistent, umbrella like total area coverage.
Climate Change, Lightening or Manmade… regardless of how the wildfires start, the indisputable facts remain that they are happening with a significantly greater frequency, creating a ‘GLOBAL WILDFIRE CRISIS’, that we have all witnessed with great sorrow and despair.
ARROW – is the next step of the Wildfire Detection Sensors, which was selected as a Capstone in 2019/2020 for 4th year engineering students. These newly developed sensors will form an integrated multi altitude system that is mounted onto solar charged and battery powered autonomous VTOL aircraft /drones UAVs (unmanned aerial vehicles) that will cruise above BC forests in predetermined grids or event patterns.
This concept was developed during the severe wildfire season of 2018 in BC when numerous wildfires were burning at one time and destroyed over a million hectares of forests, and the smoke enveloped 1000s of square kilometers. These fires led to destruction on a massive scale.
Since lightning strikes also account for starting approximately 60% of all wildfires in BC, we conceptualized the ability for a UAV to loiter at high altitudes above a fixed point on the earth for days or weeks at a time, so that detection occurs and only minutes or hours elapse after a fire has started instead of multiple days. In this way the smaller fires will be easier to extinguish.
Three other levels of sensor and thermal imaging equipped UAVs, each having unique flight characteristics and altitude operating envelopes will complete our system. Other uses of this technology could be for search and rescue purposes, maritime and arctic surveillance, and disaster relief coordination.
This project is in collaboration with the University of British Columbia – Okanagan Campus
The UBCO Engineering Team
Dr. Jahangir Hossain is the supervising Communications Professor of the ARROW project
Dr. Hossain has held research fellow appointments at Institut national de la recherche scientifique (INRS), Canada, Institute for Telecommunications research (ITR), Australia and McGill University, Canada. He has also gained practical experiences towards developing contemporary wireless communication systems through his industrial appointments. In particular, he has worked at Intel Inc., USA as a research intern and at Redline Communications, Canada as a senior systems engineer. His research has focused on developing bandwidth and energy efficient technologies for wireless systems, which lead to longer battery life and the ability to support high data rate applications for devices such as laptops, smart phones, and tablets.
Dr. Joshua Brinkerhoff is the supervising Aeronautics Professor of the ARROW project
Dr. Brinkerhoff is an expert in computational fluid dynamics, and leads the UBC-Okanagan Computational Fluid Dynamics Laboratory. His team uses very large computer simulations to investigate the behaviour of turbulent fluid flows, with a special focus on the development and interaction of various instabilities in the flow. Although his primary expertise is in aerodynamics and aeroengine propulsion systems, his team has tackled a broad range of flow simulation problems relating to lung disease, passive buildings, wind farms, hydrogen energy, supersonic vacuum systems, and geothermal systems. He has a particular interest in modelling the transport, storage, spill and dispersion of very-low-temperature liquids like LNG and liquid hydrogen.
Dr. Alexander R. Uhl is the supervising Solar Energy & Fuels Professor of the ARROW project
Dr. Uhl is an Assistant Professor in the School of Engineering at UBC Okanagan. He received his PhD in Materials Science and Engineering from the Swiss Federal Institute of Technology in Zurich (ETH), Switzerland and Diploma in Nanoscale Engineering from the University of Würzburg, Germany after graduate stays at the University of British Columbia, Canada and Uppsala University, Sweden. As a three-time fellow of the Swiss National Science Foundation (SNSF), he conducted postdoctoral research at the University of Washington, USA and at the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland.
Md. Zoheb Hassan – Graduate Research Assistant
Md. Zoheb Hassan has obtained his PhD degree form the department of electrical and computer engineering, The University of British Columbia, Vancouver, BC, Canada at 2019. Within UBC Vancouver, he was the recipient of the prestigious Four-Year Doctoral Fellowship. Since 2019, he has been working at University of British Columbia, Kelowna, BC, Canada as a teaching-postdoctoral fellow. His research expertise includes UAV communications for Internet-of-things network, interference-aware resource scheduling in wireless communication networks, wireless optical communications, , and digital communications over fading channels. He serves/served as a member of the Technical Program Committee of IEEE IWCMC 2018, IEEE ICC 2019, and IEEE ICC 2020.
Kenan Sevim – Research Assistant
Kenny is currently finishing his bachelors degree in electrical engineering. Problem solving and learning are his two biggest passions that drive him everyday. He loves learning about new innovations from different cultures and environments. Watching something work that’s been engineered perfectly really determines him to one day have one of his innovations changing the world as well.
Emily Schatz – Research Assistant
Emily is a fourth year Electric Engineering Student at the University of British Columbia Okanagan Campus. She also has her diploma in Electronic Engineering Technology. She is excited to work on the Wildfire Detection Sensor project with Our Blue Planet as her career interests are in electronics and renewable energy. She has worked in the Aviation and Aerospace industry as a technologist and she is excited to venture into the sustainability sector.
Colton Share – Research Assistant
Colton is studying Mechanical Engineering at the University of British Columbia Okanagan campus and is expected to graduate with his Bachelor’s Degree in May 2020. He chose Mechanical Engineering because he have always had a strong passion and interest in vehicles, structures, and the complexity of moving parts. Colton has worked in construction as a framer/carpenter for the last four summers. Hockey and golf are his main hobbies outside of school as he grew up playing competitively almost my whole life.


Simply plug your favourite toy or other small, battery-operated appliance into iControl and control it from your iPad in the following innovative ways:
iControl has two 3.5mm socket to allow the toy or other appliances to be connected.
The app has many features to make the learning environment fun and effective. For example, choose the colour of each switch or optionally replace the switch with a photograph taken using iPad's built in camera or chosen from the device’s existing photo gallery. The app can also be scanned using iOS Switch Control by users who can’t use the touch screen.
Please Note - Requires iPad 3, iPad Mini, iPad Air, iPad Pro or later. Will not work with First Generation iPad or iPad 2. iClick & iControl use Bluetooth Low Energy (Bluetooth 4.0) to communicate with the iPad. This feature was introduced with iPad 3 and iPad Air and is also available on all iPad Mini. Earlier devices will not work.
Dette er et spesillaget produkt men alle kan bestille det.


Where We Are Headed To
The future of social media is of great interest to a lot of people. A whole economy has developed out of social media. There are marketers, social media consultants, application developers etc. For these people, bread on the table is available due to the presence of social media. There also internet service providers, mobile telephone companies and other hardware technology developers whose technologies support the internet and social media by extension.
A question that many of these people have on their mind is whether social media is sustainable, or is it a fad? Will social media cease to exist any time in the near future? They want to know the answers to these questions so that their investment may be made from a more informed decision. Others only want to know if the income stream they currently enjoy will be there in the coming years.
What we know
To answer the question of the future of social media, we have to look at older technologies in the communications industry. Are there any technologies that became obsolete and got abandoned? Are there communication methods that were overtaken by others? In this regard, the telephone lines that ran overland close to railways come to mind. The telephone still exists, the telegram still exists; but they now utilize wireless technologies.
Another communication method whose example can guide us is the radio and television. The two are constantly evolving. From black-and-white television screens, and radio signals over the AM band only, we now have colour TV carried on the internet. Radio is on the internet too. The FM band led to increased civilian use of the radio.
There is early experimental work in long-distance wireless applications of Bluetooth technology, infra-red and light pulse communication. Research in some of these technologies is however in the infancy stages. Light pulse communication is already in use in fiber-optics. Maybe it will be successfully adopted into wireless form.
Already, there are communications software (Apps) that use near-range Bluetooth signals to create a network and carry messages. (See FireChat). Could this be the way to go? These technologies are a very tantalizing idea when we consider the future of social media. Well, they currently have less government interference and give the user more control. They are relatively cheap too. The question is in efficiency.
The future of social media
Drawing from all the examples we have seen, and guided by the available information from research in the future of communication technologies, we conclude that social media is here to stay. Social media is in its basic form just a communications method. It is one of many that exist. The key drivers of social media growth today are speed, low cost, the internet and availability on mobile.
If we remove any of these, we will see a shift in the way social media is used. It would also cause a different pattern of social media growth to emerge. There is very little likelihood in the way of social media death. Instead, we can explore possible changes in the way social media use will be.
One possible scenario is the discovery and proliferation of a communications technology that will be cheaper than the internet. As a broad platform of communication, social media will also evolve to utilize the technology of the time. In short, it will be Twitter on Bluetooth or Facebook on microwaves. Think of Instagram that utilizes light signals carried over-the air. Social media will be there, most likely riding on something that is not the internet.
Today, have a toast to Social Media; it is here to stay.


Unlike traditional traffic control systems, smart technology for traffic control are less reliant on human involvement. They can identify live traffic and analyze it in real time. They are also more effective and can help reduce traffic congestion. They have the ability to adjust signal timing based upon variable elements.
Smart visitors lights can reduce idling by approximately 30 percent, reducing wait days by as much as forty percent. Additionally, they can help decrease congestion by adjusting sign timing based upon volume of vehicles. Additionally, they can help secure others simply by changing signs to prevent risky drivers by approaching the intersection. They are also designed with sensors and connectivity technology to discover live targeted traffic.
Smart signals can be used to manage people crossings and pedestrian crossings can be improved by the targeted traffic light procedure. This criteria combines data from linked road facilities, connected vehicles, and neighboring visitors lights. Their detection features allow it to distinguish crossing lanes and reverse driving.
Brilliant traffic control has changed the way in which we travelling. In some cases, it has reduced travel times simply by up to 40% and emissions by about 21%. In addition, it prioritizes public carry. It can also assist connected automobiles and telematics systems.
One of these of a clever traffic mild is the InSync system, manufactured by Rhythm Architectural. It has been functioning at two, 300 targeted traffic signals inside the U. Ings. as of The fall of 2015.
Brilliant systems can also help manage targeted traffic better. They can boost the efficiency of intersections and reduce the time that usually takes for disaster vehicles to realize their vacation spots. They can likewise help improve fuel effectiveness and reduce costs.
In addition to improving traffic flow and safety, good systems can also increase the health of the downtown area communities. For example , if targeted traffic is slowed up in a down-town area, it might much better for 1st responders to access the region. Smart devices can also increase the amount of available car parking spaces.
Good traffic lumination systems are capable of processing data on the edge from the network. In addition , they are able to furnish predictive algorithms which will help find effective solutions to targeted traffic management complications.
Intelligent visitors control and smart traffic lights can help you improve traffic flow and essential safety, as well as increase parking availability. They can also create options for new market entrants.
Good technologies for the purpose of traffic control will help create more effective city environments. They will help prevent bumper-to-bumper traffic and maintain tracks safe. They can also reduce technologytraffic.com/2020/05/01/modern-traffic-technologies-by-board-room/ travel instances and blockage costs.
Smart traffic control systems can work with telematics systems and connected automobiles. They can also work with cloud-based transport supervision systems. They can also conduct predictive analysis and advanced building. They can help local authorities develop transport devices that are efficient and effective. They can also work with suppliers and insurance plan makers. Sensible systems can help transform the downtown area centers. These kinds of technologies will be needs to keep tracks safe in dense places.


Samsung is finally addressing a confounding issue with the automatic HDMI input switching feature in its televisions — a problem that plagued Nintendo Switch owners in particular.
In a statement to The Verge today, Samsung said it “will be issuing a Firmware update early this summer that will address this behavior and provide the level of convenience that was intended.”
Samsung’s 2016 TVs will automatically switch the active HDMI input to a different one if they detect that the device connected to the second input has been turned on. There is no way to disable the switching, which is separate from HDMI-CEC, a feature of the HDMI protocol that allows for connected devices to be controlled by one remote. Nintendo Switch owners who use a Samsung HDTV have been reporting that their TV will randomly change to the Switch’s HDMI input while the console is in sleep mode.
There’s a 16-page thread on the Nintendo Support Forums about this issue, although the Switch isn’t the only device affected by it. Owners of boxes like the Apple TV have run into the same problem, according to a similar thread on the Samsung forums.
There’s no word from Samsung on whether the upcoming firmware update will add an option to disable automatic HDMI switching or remove the feature altogether. We’ll just have to wait and see how it works when the patch arrives.
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Andrew F. J. Abercromby is a biomedical engineer working on the design and testing of spacesuit systems and rovers for future exploration of the solar system. He works for Wyle Integrated Science amp Engineering at NASAs Johnson Space Center in Houston, Texas. As an aquanaut, Abercromby served as a member of the NASA Extreme Environment Mission Operations crew. Abercromby has more than ten years of experience working in the Space Life Sciences and Engineering Directorates at the Johnson Space Center. He is married with two daughters.


‘Social Robots’ Show Promise As Autism Intervention
Children with autism could see meaningful social skills gains from working with an interactive robot at home, researchers say.
A study published this month in the journal Science Robotics found that kids on the spectrum who spent just 30 minutes a day with the so-called social robots made significant improvements in eye contact and social behaviors.
“The children showed improved performance across the board,” said Brian Scassellati, a professor of computer science at Yale University who led the study. “This was more than we had hoped; not only did the children and parents still enjoy working with the robot after a month, but the children were showing improvements that persisted even when the robots were not around.”
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For the study, 12 kids with autism ages 6 to 12 were assessed on their social and emotional development. Then, a robot was placed in each of their homes for 30 days.
The children spent a half hour each day working with a caregiver and the robot on activities promoting emotional storytelling, perspective-taking and sequencing. The robot, which is specially designed to interact with people, adapted to the individual using various games depending on the child’s progress.
After the month concluded, the children were then evaluated again and the researchers found clinical measurements of social improvement. What’s more, the kids’ caregivers indicated that the children were better at making eye contact and seeking out communication.
The researchers said their findings suggest that social robots can be successfully used outside of a clinical setting and support further study of the technology.
“These are kids who have years of experience with the idea that social interaction is challenging and something they don’t understand,” Scassellati said. “When they interact with the robot, though, it triggers social responses but it doesn’t trigger a lot of the other baggage they’ve come to associate with social interaction.”


The donor is taken to an operating room, where organs are surgically removed. After that, the organs are sent to the transplant hospitals where candidates are waiting for them. OrganTracker monitors the organ while in transit.
OrganTracker provides quality assurance and visiblilty to:
OrganTracker helps organs make it to their destination and to the proper recipient.
OrganTracker provides tracking and environmental monitoring, such as temperature, of bone, skin, heart valves, veins, and connective tissue.
OrganTracker provides tracking and environmental monitoring, such as temperature, of whole blood, plasma and platelets .
The Medical industry has many moving parts, and frequent emergency situations. OrganTracker provides highly efficient tracking solutions to know exactly where your key people are and when they will arrive.
OrganTracker provides medical device and equipment tracking devices that can be integrated into the equipment or battery-powered devices that can mount externally.


What is an Air Quality Meter?
An indoor air quality meter is used to prevent mold, detect gas leaks, and monitor the level of Carbon Dioxide gas in confined spaces.
A person can find various devices used to monitor the quality of air that meet the standards set up by industry related to the personal safety of the employee. It also helps to measure, monitor, and detect:
- Relative humidity
- Ambient temperature and level of Carbon dioxide (CO2)
- Formaldehyde (HCHO)
- Volatile organic compounds (VOCs)
- Freon and other refrigerants like HFC and CFC
- Phosphine (PH3)
- Carbon monoxide (CO)
- Hydrogen sulfide (H2S)
- Oxygen (O2)
- Nitrogen dioxide (NO2)
- Ozone (O3)
- Other toxic, hazardous, and flammable gases
Certain air quality meter devices feature an auto-calibration function that permits an easy calibration for the detection of gas by the gas detector. Some of the air quality meters also have the power to store measurement values. This measurement data can be later transferred to a computer for a much more detailed analysis.
What should you look for in an Indoor Air Quality Monitor?
It is important to choose such a monitor that provides a clear and thorough reading of the environment of a home. A monitor that can measure VOCs and small particulate matter can help to understand more about the quality of the air inside your home.
Measurements are necessary as they help to maintain healthy air conditions. Monitors that are known to provide measurements related to CO2, air pressure, humidity, and temperature helps to gain more knowledge.
An air quality monitor ideally does not take much space. But if you wish to test the air quality in multiple locations or on the go, a battery-operated handheld device helps to provide real-time readouts.
However, this might come at the cost of a sophisticated design or a detailed display.
- Smart capabilities
Smart-home compatible and app-enabled air quality monitors are popular high-quality options that are popular and relatively low-tech. The perk of integrating an indoor air quality meter into the rest of the setup of your smart home is that it helps to interact with the air purifier or the thermostat for providing an encompassing air quality control.
An app-enabled device, on the other hand, aims to appeal to you in case you are interested to know more about the additional information of your readings and quality tracking overtime or receive recommendations for improving the air quality in your home.
Whether handheld or wall-mounted, fixed or portable, air quality monitoring equipment is important to ensure the safety and health of a person. Use it and reap all the benefits provided by an indoor air quality meter.


SAN FRANCISCO, CA - November 30, 2021 - Video Intelligence innovator Spot AI announced that it has been selected by top venture capital firms to the Top 40 Intelligent Applications for 2021 (#IA40).
The report, sponsored by Madrona Venture Group and Goldman Sachs, says that Machine Learning and Artificial Intelligence are taking the world by storm, and the companies selected will have an incredible impact on our lives and define the future of software.
"We're so excited and honored to be part of the IA40," said Tanuj Thapliyal, CEO and Co-Founder of Spot AI. "Spot AI is on a mission to make video footage accessible and easy-to-use for every person at every business. This recognition from IA40 shows that video intelligence will be a tremendous force moving forward."
Read the full IA40 report here.
About Spot AI
Spot AI was formed by engineers from Stanford, Cisco Meraki, and Samsara, with the mission of visually indexing the physical world and making that data useful to everyone at work. With an easy-to-use AI camera system, Spot AI unlocks the power of video data to help companies improve their security, safety and efficiency. The company’s headquarters are in Burlingame, CA. For more information, visit www.spot.ai.


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Unidirectional Wireless RF Transmitting & Receiving
Digital in, digital out, with no wires!!! Yes, it can be that easy but there are some things you will find out about going wireless that you may not have counted with wired connection.
This application note will guide you through a simple RS232 link and illustrate how easy these devices are to use as long as you know how to handle a couple wireless phenomenon and plan your project to take these into account.
In Figure 1 below, we have illustrated the simplest RS232 link possible. It links a computer to a microcontroller using the 418/433MHz transmitter and the 418/433MHz receiver.
This circuit will work with most computer's RS232 ports because most use standard digital voltage levels to determine if a signal is a "1" or a "0".
Figure 1: Simplest RF circuit (power & ground not shown).
In this example, we'll say the microcontroller is transmitting a packet of data with some sort of information. Something like:
<device ID><data byte 1><data byte 2><data byte 3><data byte 4><data byte 5>
Let's also put some ASCII readable data in the packet. Something like:
If a simple terminal program was used on the computer, one might see something like the following:
@#23lk 23 @# __(*& A12345 #@@23@#44
The information we are transmitting is seen but it is surrounded by garbage data. This garbage data is simply static the receiver is picking up, just as you pick up static on a television channel where there is no transmission. The transmitter only transmits the "1"s in your data packet. "0"s are simply periods of no transmission. The receiver is able to tell a "1" from a "0" when transmitted closely together but at other times, the receiver will try to make out data when there is none. Although this may seem counterproductive, it gives a much greater transmission distance since the receiver can constantly adjusts its gain, looking for data even when the signal is very weak.
One way of overcoming the static is to simply add a few unique bytes to the first of the packet that will identify good data to the program running on the computer.
This is sometimes called a "header". For example, let's change our packet to be:
Now the computer would see something like:
@#23lk 23 @# __(*& RFRFA12345 #@@23@#44
It would be simple for a program to look for the "RFRF" pattern and then read in the device ID and data from within the packet.
This technique should work fine for many applications but we would also like to suggest using some sort of error detection and/or correction scheme that will ensure the integrity of the data. There are many different ways to go about doing this. The simplest is a checksum, where each byte of data is added together and the result is transmitted at the end of the packet. The receiver can then does the same addition, compare the result to the checksum, and have some confidence that the data was transmitted without interference. Remember, when using radio, there is always a possibility of interference from another radio source such as a garage door opener, nearby intercom, CB radio, etc….
A simple checksum for our example can be obtained by adding up the ASCII values for each byte in our packet. You can choose whether you wish to use the header in the calculation. If we leave out the header, our checksum is:
"A" + "1" + "2" + "3" + "4" + "5"
65 + 49 + 50 + 51 + 52 + 53 = 320
For this example, we will allocate only one byte at the end of the packet for the checksum information. A value of 320 "rolls-over" because one byte can only handle a value up to 255. The value after roll-over is the remainder of 320/256, or
64. 64 is the "at" symbol in the ASCII character set so our transmitted packet now looks like:
This is our completed packet with a simple header and checksum.
Now, let's have a quick review of how this packet is transmitted and received.
Simply, the transmitter will preface every packet with "RFRF". This is done simply
to allow the receiving device to recognize a packet of data from static. Then, the packet data is sent. In our example, this was a device id of "A" followed by the data bytes "12345". Finally, the transmitter sums up all the bytes from within the packet to get a checksum. In this example, the checksum was 320. Since we allocated only one byte to the checksum, we divided by 256 and took the remainder. The result was 64 or the "@" symbol in ASCII. The transmitter is constantly receiving data from the RF receiver. Initially, it looks for nothing but an
"R". If it receives an "R", then it looks for an "FRF" as the next 3 characters it receives. If at any time it gets something different, it will go back to looking for the first "R". Once the header is received, it will load the packet data but not put it to use until receiving the checksum and comparing it with its own calculated checksum. If the packet received has a checksum matching the one transmitted, the data will be put to use.
The communication explained is unidirectional. While a bi-directional protocol can offer many added benefits, the unidirectional protocol described works fine when the transmitter retransmits its data and an occasional bad packet doesn't greatly impact the operation of the system. This protocol offers means for avoiding the use of bad data while staying simple and inexpensive. It is a good protocol for use in applications such as wireless door sensors, motion sensors, and simple switches.


The sigma-delta architecture is suitable for applications with much lower bandwidth, typically less than 1MHz, and with resolutions in the 12- to 24-bit range. Pipeline vs. Sigma Delta ADC for Communications Applications Noel O’Riordan, Mixed-Signal IP Group, Adesto email@example.com Introduction The Analog-to-Digital Converter (ADC) is a key component in digital communications receive channels, and the correct choice of ADC is critical for optimizing system design. In this article, Figure 6. Oversampled SAR ADC spectrum Figure 7 shows the Sigma-Delta modulator output spectrum (Spectrum of 1-bit data stream from modulator output from Figure 2).
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Professor Flash, pipeline, integrating, successive approximation and sigma-delta. Each of Figure 5, the obtained THD improvement is compared with the results from the. Nya Delta-Sigma ADC-enheter; BSIM3V3.2 modell; GaAs-enheter; GaN-enheter Avancerad makroredigering; SAR- och Sigma-Delta-ADC; DAC med SPI; I2C, eventuella 2-övergående eller DC-överföringsresultat, exempelvis v1 (t) vs v2 Effect of VCSEL Characteristics on Ultra-High Speed Sigma-Delta-Over-Fiber Design Considerations and Evaluation of a High-Speed SAR ADC Modulated Switching Mode Power Amplifiers: A New Paradigm for the Power-Efficiency vs. informationsteknik och databehandling / elektronik och elektroteknik - iate.europa.eu. ▷.
Learn more about TI solutions at TI.comhttps://www.ti.comThis video provides the viewer with a high-level comparison between two of the most common precision
We now know that an ADC must sample the input signal slightly faster than the Nyquist rate to properly represent it in the digital domain. Before you begin designing your anti-aliasing filter, you must first understand the architecture of the ADC that it’s used for.
Oct 14, 2020 Figure 1c shows the equivalent quantization error (QE) of two-step pipelined- SAR ADC versus the resolution of first-stage SAR ADC and second-
Sigma Delta Converters. ADCs will always benefit from process scaling in deep submicron CMOS, resulting in increased interest in Oct 14, 2020 Figure 1c shows the equivalent quantization error (QE) of two-step pipelined- SAR ADC versus the resolution of first-stage SAR ADC and second- Delta-sigma modulation is a method for encoding analog signals into digital signals as found in an analog-to-digital converter (ADC). It is also used to convert Data Converters- Nyquist Rate ADCs. © 2010 Page Nyquist v.s. Oversampled Converters.
Disadvantages: High resolution type of SAR ADC will be slower. Speed is limited to 5 MBPS. Sigma Delta ADC. Figure-4 depicts block diagram of Sigma Delta ADC. Serial Output is proportional to analog input voltage.
오버 샘플링으로 양자화 잡음을 최대한 줄이고 노이즈 쉐이핑을 한 후 저역 Sigma-Delta Conversion Method. The Sigma-Delta ADC operates in a completely different manner. Instead of taking discrete samples of the analog signal, the input is converted into a continuous process.
At its core is a 1-bit ADC.
Key Differences between SAR and Delta-Sigma ADC Both ADCs enjoys a maximum sampling rate of 10 Msamples/s.
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Finally, the delta-sigma (ΔΣ) offers very high resolution, but lower sampling speed. Table 1 shows the relative characteristics of each type. Two of the most popular types are the SAR and delta
Advances in architecture design combined with the smaller geometry processes capable of supporting higher voltage devices have all contributed to the development of higher performance sigma delta converters. High resolution SAR ADC employing Sigma Delta DACs ADCs are essential building blocks for almost all electronic systems, they represent the key element that allows the digital representation of any electrical signal located in the analog domain, and hence these by-nature analog signals could be processed by the latest sophisticated digital processing units only after well A/D conversion in the Figure 6. Oversampled SAR ADC spectrum Figure 7 shows the Sigma-Delta modulator output spectrum (Spectrum of 1-bit data stream from modulator output from Figure 2). It can be seen that much of the noise is moved toward the high frequencies (thanks to the integrator used in the Sigma-Delta modulator). In contrast, a SAR, pipelined, or sigma-delta ADC die size will increase linearly with an increase in resolution; an integrating converter core die size will not materially change with an increase in resolution (Figure 3c).


Windows 7’s XP Mode or Virtual PC can have issues with video and sound playback.
I recently got a new laptop for work running Windows 7. I like to run virtual machines on my laptop so that I can install software that’s required for my projects without messing up my main windows installation. Those vm images are also easy to back up and move around.
VMware Player worked well, but would not see my USB camera and microphones. It also used fixed disk sizes. So, I tried Win 7’s XP Mode vm and found it easier to use.
XP Mode allows auto disk sizing and supports all the USB devices I could throw at it. However, I noticed videos would have the sound delayed or echoed. After a some research and some experiments, I found the trick to making videos play correctly.
Turn off Audio Integration.
Yep, turn it off. If you were like me, you assumed you need Audio Integration to get the sound from the virtual machine. Not true, Audio Integration created a ‘soft’ or virtual version of your sound device instead of using your full sound card. Turning it off allows XP Mode to talk directly with your sound card.
From the Windows Virtual Mode help file:
Audio. This setting controls whether audio input and output for the virtual machine is redirected to audio devices in the host, or is managed by an emulated audio device. To improve audio performance, clear the check box for a virtual machine running Windows XP, and select the check box for a virtual machine running Windows Vista or Windows 7.
See that? Uncheck the box for audio to improve performance on XP virtual machines. I now can play videos inside my virtual machines. I still see some lag issues if my main PC is doing some work, but otherwise works great.
Note: XP Mode is part of Windows 7 Enterprise or Ultimate versions, Virtual PC 2007 is available for other versions of windows. http://www.microsoft.com/windows/virtual-pc/support/virtual-pc-2007.aspx


In 1980 Intel introduced a microcontroller standard MCS-51 also known as 8051. This standard provided a base for microcontrollers and ease of development for microcontroller based applications. This is simplest microcontroller with less but most widely used peripherals that are enough for majority of applications. Less peripherals in a microcontroller make it simple to learn and reduce learning time and efforts while more peripherals and features in a microcontroller make it complex to learn and increase learning time and efforts. Standard 8051 microcontroller has less peripherals and so best suits for newbies and students as compared to other microcontrollers like PIC, AVR or ARM that are complex to understand (due to more features and peripherals). Most of the developers easily learn and develop 8051 based applications. So, it’s simplicity attracts developers. It has not just a microprocessor but has important resources and peripherals on a single chip that makes design simple, low cost in terms of money, time and efforts as compared to microprocessor design that becomes complex and costly. Although external resources and peripheral can also be attached like in microprocessor based design. All peripherals can be mapped in memory address space of 8051 and this feature is also not available in most or all of other microcontrollers like PIC and AVR (however some of them may have this feature but not all). Because of this feature we can design Single Board Computer (SBC) system on 8051 microcontroller. Tools and IDEs are easily available for the development of 8051 microcontroller. Ability to develop 8051 based application is necessary to acquire degrees of various disciplines of engineering. Due to these characteristics 8051 microcontroller is one of the most widely used microncontroller today. After Intel different companies are now producing variants of 8051 standard microcontroller. All of these are based on 8051. Some of these companies are Atmel, Philips, Dallas, Infineon.
8051 based micontroller have the following major parts in it
- Program Memory
- Data Memory
- Special Function Registers (SFRs)
- Bit Addressable Memory
- IO Ports
- Serial Port
There are 4 types of memory in standard 8051 microcontroller.
In standard 8051 microcontroller there is 4KB of on-chip or internal memory where program to be executed resides. This program is executed when microcontroller power is applied in the target circuit. This program is transferred using a programmer/burner device from PC to 8051 microcontroller.
In standard 8051 based microcontroller there is 128 bytes of data memory. Data memory is the place where our program data or variables reside. Stack also occupies space in this area of memory. This area belongs to address space from 0x00 (0 decimal) to 0x7f (127 decimal).
Special Function Registers
These are the registers that control or store status of specific behavior or data related to a function of 8051 microcontroller. SFRs belong to address space from 0x80 (128 decimal) to 0xff (255 decimal). But there are only 21 SFRs in standard 8051 microcontroller. Remaining 107 locations may be used by other derivatives of 8051 but not in standard 8051 microcontroller.
Bit Addressable Memory
As it’s name shows this is a memory area in which single bit can be addressed or accessed. There is no need of reading or writing whole byte to access a single bit. However we can also access whole byte as well. There are 16 bytes memory for this purpose and belongs to address space from 0x20 (32 decimal) to 0x2f (47 decimal).
Standard 8051 has 4 IO ports of 8 pins each. These ports are Port 0, Port 1, Port 2 and Port 3. These ports are used to communicate with external world. Some pins of ports have more than one function.
Interrupt is the signal to CPU for an event that requires immediate attention of CPU. An interrupt may be a hardware or software generated. Standard 8051 microcontroller has 5 Interrupts sources. These sources are
- External Interrupt 0 (INT0)
- Timer 0 Overflow Interrupt (TF0)
- External Interrupt 1 (INT1)
- Timer 1 Overflow Interrupt (TF1)
- Serial Port Interrupt
Serial port interrupt is further divided into
- Receive Interrupt (RI)
- Transmit Interrupt (TI)
Timer is resource that is used to count events or to calculate time duration of an event or to simply calculate delay. In standard 8051 microcontroller there are 2 timers called Timer 0 and Timer 1. Both of these timer can be configured and run independently. Timers also generate overflow interrupt during counting.
Serial port is a hardware resource in 8051 microcontroller that convert serial stream of bits on receive pin “RxD” and convert it into parallel data and convert parallel data into serial stream of bits that is transmitted through transmit pin “TxD” (each bit one by one). Serial port is also called UART (Universal Asynchronous Receiver Transmitter). Serial port also uses a timer for calculation of baud rate or duration of a single bit. Serial port has receive and transmit interrupts associated with it. Using this serial port we can connect our 8051 microcontroller with PC, some other microcontroller, mobile or modem.


15 Feb Robotics and Engineering Laboratory
Springdale Preparatory leaders have created a new laboratory concept, Fablab, to combine new challenging methods in robotics and engineering to stimulate students’ creativity ability. The laboratory is equipped with the latest 3D technology to enable integration from different disciplines. Project-based learning offers the ability to expand mathematical tools, cross-field training, problem-solving skills, teamwork, and innovative skills.
Rocket Design and Build with 3D Printing
Rockets help people on the earth to understand outer space. We are now living in the space age. In this project, we will utilize 3D printing technology to design and build our own rockets and make them fly.
Students will not only learn about physics, engineering, and aerodynamics, but also apply their knowledge. Students will explore the unknown through the process of rocket design, including assembling the rocket, selecting materials, and deciding flight angle. Ultimately, students will have an outdoor rocket flight contest to see whose rocket will go up the highest.


A new research report describing shnell has now appeared on HAL:
We show how locally replaceable code snippets can be used to easily specify and prototype compiler and language enhancements for the C language that work by local source-to-source transformation. A toolbox implements the feature and provides many directives that can be used for compile time configuration and tuning, code unrolling, compile time expression evaluation and program modularization. The tool is also easily extensible by simple filters that can be programmed with any suitable text processing framework.
When compiling position independent code, PIC, the gcc compiler fails to inline many functions that have an external name, that is that are not declared
static. While this is conforming to the C standard, this is a complete blow to a lot of optimization efforts that I have put into my code in many places.
Continue reading “gcc doesn’t inline position independent code properly”
C11 has added a certain level of Unicode support to C, but I think for C2x it will be time to go a step further and put C in line with general usage of special characters as they are normalized by Unicode. In particular, it is time to get rid of restrictions in operator naming that stem from the limited availability of special characters 30 years ago, when all of this was invented.
Continue reading “Unicode operators for C”
Some time ago I had advertised for one of my new toys, Modular C, an extension of the C language aiming for modularity, and, more generally for an easier use. Since then it has gained some new features and I have rounded up some edges, so you all should definitively have another look 🙂
Among the new features are
- complete Unicode support (identifiers, operators)
- finite code unrolling (
- programmable expression contexts (e.g for modulo arithmetic or string operations)
Also, there is now some concise documentation, at
Since decades, C is one of the most widely used programming languages, and is used successfully for large software projects that are ubiquitous in modern computing devices of all scales. For many programmers, software projects and commercial enterprises C has advantages (relative simplicity, faithfulness to modern architectures, backward and forward compatibility) that largely outweigh its shortcomings. Among these shortcomings, is a lack of two important closely related features: modularity and reusability. C misses to encapsulate different translation units (TU) properly: all symbols that are part of the interface of a software unit such as functions are shared between all TU that are linked together into an executable.
Continue reading “Modular C”


This Book explores the dynamic relationship between humans and intelligent environments, with a specific emphasis on the role of Artificial Intelligence (AI) and the Internet of Things (IoT). This book offers readers a holistic understanding of intelligent environments, encompassing their definition, design, interaction paradigms, the role of AI, and the associated broader philosophical and procedural aspects. It takes a comprehensive HCI perspective in the context of AI research and the creation of intelligent environments, elaborating on the design process, human-centered AI, AI in HCI design and user experience, Ambient Assisted Living and AI for customer services.
It zooms in on designing interactions with the IoT, conversing and teaming with intelligent agents and interacting with robots, and zooms out to discuss the overarching principles that design should aim to adhere to, such as user interface adaptation, design for all, sustainability, cybersecurity, privacy and trust. The book also provides insights into the intricacies of various intelligent environment contexts, ranging from automotive to room-based systems, to entire cities, to urban interfaces and beyond.
This book contains 14 chapters, written by 45 authors. The book includes 80 figures, 36 tables, and 2,378 references for documenting and providing supporting data to the presented and discussed information.


What should we do if there is a problem with the mask machine equipment during the production ?The mask size is not stable, earbands are long and short, the breathing resistance varies greatly in the same batch mask, the filtration efficiency of the same mask even change.Below we enumerate the failures that may occur during the commissioning or use of the mask machine equipment, analyze the reasons, and give solutions,hoping to help everyone.
1, inspect the electric power and air pump
50% of the equipment failure of automatic mask production equipment is caused by power and air source problems.For example, due to power supply problems, it will lead to problems such as insurance burnout, poor plug contact and low power supply. Since abnormal opening of air pump will lead to abnormal opening of pneumatic parts, etc., So it is recommended that we give priority to check these conditions, in case of failure of automatic mask production equipment.
2, the sensors position
Due to the vibration of the machine during the production,the sensors might loosed and deviated.With the increase of vibration frequency, the sensor position may offset due to loose.When there is deviation, caused bad induction and sensitive,also can appear warning alarm signal.Thus we suggest everybody to conduct regular inspection and correction to the position of the sensor, so as not to affect the normal use;
3, relay components regular inspection
The relay has similarity situation with sensors during the production,when used for a long time and not pay attention with it maintain and overhauled regularly, will caused electric circuit abnormal;during the production,the pressure regulator spring of throttle will loose and slide owing to the vibration,these case will cause the equipment abnormal work.
4, the transport system
Check the surface of motor,gear roller,slowing motor, chain belt,wheels and etc parts if have any dust,it might caused the heat radiation function,chain belt is too tight or too loose and have any object on it,the lubricate for slowing motor is enough or not,it needs to change every 1000~1500 Hrs.
If there any further questions,please feel free to contact us.
Post time: Nov-18-2021


CERN 60 Public Computing Challenge
Over 5000 people have participated so far in the CERN 60 Public Computing Challenge, an event that invites the public to download a virtual atom smasher into their computer and help scientists simulate the sorts of particle collisions that occur in CERN’s Large Hadron Collider (LHC) and other important accelerators from CERN’s 60-year history.
The challenge tests out a new browser-based approach to volunteer computing, and also helps to populate a database of simulations that will be used in a new particle physics game developed as part of the EC Citizen Cyberlab project. At peak performance, the global network of volunteer computers contributing to the challenge is able to simulate particle collisions at rates rivalling those of the LHC’s detectors.
The CERN 60 Public Computing Challenge was a 12-day event that ran in December 2014, as part of CERN’s 60th anniversary celebrations. We invited volunteers around the world to help us compute simulations of particle collisions in the Large Hadron Collider (LHC) and other particle accelerators that have been active during the 60 years of CERN's history.
Thanks to your efforts, we’ve been able to simulate over 19 billion particle collisions, more than half of all the data we need for the game. And thanks to the many of you who provided detailed feedback in the forum, we’ve also been able to fix quite a few bugs with the software, making it easier to install and run. Some of you went all out to help, providing hundreds of hours of processing power. As of 10am CET Saturday 20 December, the official end of the challenge, we’ve made a top 10 ranking and a “ volunteer cloud” that celebrates everyone who logged in. Whatever your ranking, we are really grateful for all your help.
What you accomplished ?
Although the challenge is officially over, if you want to keep your virtual machine connected, we’ll keep sending out jobs, and your progress and ranking will continue to be updated. The data you produce will still go towards the database for the game. If you want to remove the virtual machine at this point, follow the instructions in the FAQ section below. In the coming days and weeks, we are going to analyse the challenge results, to understand what worked and what needs to be improved, and will share our insights on the Citizen Cyberlab website.
We plan to make a similar challenge next year, based on the lessons learned this time. So we would sincerely welcome your feedback on the challenge. In particular, we’d like to hear what you feel you have learned from participating in this challenge: about science, about technology or about anything else. Also, please let us know what you would like to have learned more about. Email your feedback to email@example.com. Thanks!