THE SALE OF most forms of halogen lighting is now being phased out in the UK and across most of Europe.
The move is designed to save on energy; most halogen lamps are rated ‘D’ on the of scale of energy efficiency. Compared to LED lighting, halogen costs five times as much to run.
LEDs lights also last longer than halogen – around 25,000 hours, compared to 2,000. So, it’s no contest, really.
High Voltage will continue to sell halogen lighting for as long as I have it in stock, but once it’s gone, it’s gone. However, certain specialist halogen lights – such as oven bulbs – I’ll continue to sell.
Customers looking to swap from halogen to LED downlights have two options:
— Keep the old downlights This is possible only with low-voltage halogen downlights that run off low-voltage transformers. In this case you can replace the lights with a low-voltage MR16 LEDs. This is because many MR16 LEDs run on AC rather than DC, and so don’t need an LED driver; you can run them off your existing halogen transformers. Just be sure to check first whether the MR16 LED bulbs you are buying are compatible.
Install new integrated LED downlights These have built-in and non-replaceable LEDs. While more expensive than replaceable LEDs, they have a much higher life expectancy.


1. The Bluetooth hands free uses bluetooth technology as a means of
wireless communication. It is specially designed to be used with
ifferent bluetooth mobiles;
2. It also provides crystal clear sound quality for a range of 10
meters, with you in mind the design is stylish, light weight and
3. This Bluetooth hands free is also compatible with other
bluetooth devices such as computer, laptops, PDAs, MP3 player etc.,
making it a versatile accessory.
1. Chipset: CSR Blueetooth spec version 1.1;
2. Standby time: 100 hours;
3. Talk time: 3 hours;
4. Recharge time (battery): 3 hours;
5. Bluetooth range: 10 meters;
6. Bluetooth frequency: 2.4 G (SIG);
7. Supported profiles: Bluetooth headset and hands free profile.
Bluetooth Headset DW-BT-002 Images


GS-GXV3240 Innovative Android OS Video Phone by GrandStream
4.3 inch (480×272) capacitive (5 points) touch screen TFT LCD, mega pixel CMOS sensor camera with privacy shutter.
6 lines with up to 6 SIP accounts including FREE IPVideoTalk account with video mail, up to 6-way audio conference and 3-way video conference, phonebook with up to 1000 contacts, call history with up to 1000 records.
Integrate with Grandstream’s GXV-series of IP video surveillance cameras to view live camera feeds and to receive alerts/alarms from IP cameras installed on the same network.
HD wideband audio, full-duplex hands-free speakerphone with advanced acoustic echo cancellation
Offers a multi-platorm video conferencing solution (Grandstream’s Free IPVideoTalk, Skype, Microsoft Lync, and more)
Call Waiting: Yes
Caller ID (CID): Yes
Conference Calling: Yes
Corded or Cordless: Corded
Ethernet Ports: 2
Headset Port: Yes
LCD Backlit Display: Yes
Number SIP Accounts/Identities: 6
Power Source: PoE and AC Adapter
Power Supply Included: Yes
Wall Mountable: Yes
Country of Origin: China
Type of Packaging: Retail Box
Warranty: 1 Year


Mobile phones have become indispensable to our lives, keeping us connected, informed, and entertained. But what happens when our trusted devices fall victim to accidents and damage? This is where mobile phone repair shops come to the rescue, breathing new life into broken smartphones. In this article, we will explore these repair shops’ crucial role in restoring devices to their former glory.
The Rise of Mobile Phone Repair Shops
Gone are the days when sending a damaged phone back to the manufacturer was the only option. Independent mobile phone shop has emerged as convenient and affordable alternatives. They provide personalized services and cater to the specific needs of smartphone owners. As a result, the mobile phone repair industry has experienced significant growth, serving millions of customers worldwide.
The Expertise of Mobile Phone Repair Technicians
The success of mobile phone repairs lies in the hands of skilled technicians. These professionals possess the knowledge and expertise to diagnose and fix various issues. They specialize in repairing specific brands and models, allowing them to become experts in the intricacies of particular devices. Moreover, they stay updated with the latest technologies, ensuring they can handle the ever-evolving mobile phone industry.
Repairing Common Mobile Phone Issues
Mobile phone repair shops excel at addressing common issues that plague smartphones. Cracked screens are a prevalent problem, but repair technicians have perfected the art of screen replacement and repair. With meticulous precision, they disassemble the device, replace the damaged screen, and reassemble it flawlessly.
Battery issues are another common complaint among smartphone users. Repair technicians are well-versed in battery replacement and optimization techniques. They can diagnose battery-related problems, replace faulty batteries, and optimize power management settings to improve battery life.
Water damage is a nightmare for any smartphone owner. However, android and iPhone repair shops have the expertise and equipment to restore water-damaged devices. They meticulously clean and dry internal components, replacing damaged parts when necessary to ensure the device is fully functional again.
Tools and Equipment Utilized
Repair technicians rely on specialized tools and equipment to perform their magic. These tools enable them to safely disassemble and reassemble smartphones without causing further damage. From tiny screwdrivers to specialized heat guns, they have a toolbox with instruments designed specifically for mobile phone repairs.
Quality Assurance and Warranty
Mobile phone repair shops prioritize quality assurance to ensure the functionality of repaired devices. Rigorous testing and thorough quality checks are performed before returning smartphones to their owners. This meticulous process guarantees that the repaired device is in perfect working condition.
Challenges Faced by Mobile Phone Repair Shops
Operating a mobile phone repair shop comes with its fair share of challenges. As technology advances rapidly, repair technicians must continually adapt and learn new repair techniques. Complex repairs require in-depth knowledge and expertise; staying updated with the latest technologies is crucial for success.
Competition from manufacturer repairs and authorized service centers poses another challenge for independent repair shops. Manufacturers often offer repair services, which can entice customers due to the perceived brand reliability. Overcoming this competition requires repair shops to emphasize their personalized services, affordability, and quick turnaround times.
The Future of Mobile Phone Repair
As technology evolves, the mobile phone repair industry must adapt accordingly. Integrating new technologies like artificial intelligence and robotics holds tremendous potential for improving the repair process. AI-powered diagnostic tools and robotic systems could streamline repairs, enhance efficiency, and reduce human error.
The future of mobile phone repair also extends beyond smartphones. Wearable devices like smartwatches and fitness trackers are becoming increasingly popular. Repair shops can expand their services to include repairs for these devices, catering to customers’ evolving needs.
Reputable mobile phone repair shops like The Mobile Market are the unsung heroes of the smartphone world. With their expertise, dedication, and specialized tools, they transform broken devices into brilliant smartphones. From cracked screens to water damage, these repair shops have the skills to diagnose and fix various issues. Moreover, they contribute to reducing e-waste and promoting sustainable practices.
Read more interesting articles at Good Thing2


A typical digital camera captures image information using image sensors, the digital equivalent of the film. Exposure factor notwithstanding, the quality of image captured depends on a few factors such as the sensor size, type and pixel density on the sensor. We'll discuss these few factors without going too deep into technical details to give you a better understanding on how image sensors work, and why more megapixels is not always a good thing.
Types of sensors
There are 2 major types of image sensor for digital cameras and camcorders: CCD (charged couple device) and CMOS (complimentary metal oxide semiconductor, or sometimes known as active pixel sensor). There have been heated debates of which sensor technology is more superior than the others, but we're not going to go there. Suffice it to say, CCD and CMOS works in very different way. High end DSLRs cameras use CMOS sensors because they are easier to make in bigger sizes, and consume less power, but they cost more. On the other hand, compact cameras and digital camcorders commonly use CCD sensors. The newer generation of Nikon DSLRs starting with the D90, D300 and all the way up to D3x use CMOS sensors, much to the delight of photographers.
The main thing about sensors is really about the size. A picture taken with the latest 5 megapixel camera phone will never look as good as the entry level DSLR by a good mile (let's not talk about lens quality first). This is due to the huge difference in sensor size used on both devices. The chart on the right compares the typical sensor sizes found in common digital cameras today. The sensor on a compact camera is approximately 10% the size of a typical DSLR , and a full frame DSLR has a sensor 20 times bigger! This is also the main reason why a DSLR cost upwards of RM3000 while a compact can cost as little as RM500. A 'full frame' sensor size is the equivalent of a standard film, at 36mm X 24mm. So the bigger the sensor, the better the image quality you'll get. That's fact number 1. Another fact to consider, before you plunge you hard earned cash on that latest digital camera is how many megapixels it shoots relative to the size of it sensors. This is what pixel density is all about.
Pixel density and Signal/Noise ratio
Let's say we have a fixed sensor size of a typical compact camera. As the megapixel war between camera manufacturers escalate, they shove more and more megapixels into these cameras without enlarging the sensor size much because larger sensors are more expensive to make. More megapixels on a same sensor size means smaller pixels are crammed into the sensor, as example below indicates. Small pixels are bad when it comes to translating light into digital bits of data. It becomes less sensitive to light and you'll get more digital noise (the rainbow coloured grain you see when you shoot in low light conditions).
To understand how sensors work, imagine each pixel on the sensor as a bucket. Imagine light falling into the bucket as coloured balls. Not all light that falls onto the pixel sensor (buckets) is translated as information used to create the final image. The ratio between the good (signal) and the bad (noise) determines how well the image is captured, this is called the signal to noise ratio. So the smaller the pixel/bucket, the lower the signal/noise ratio. Bigger buckets (pixels) will produce higher signal/noise ratio which will result in better photos especially in low light condition.
Nikon's top of the line D3 is a full frame shoots at 12.2 megapixels, while its competitor produces 23 megapixels with the same sensor size. This is why the D3 has won raving reviews and praises from professionals with its superb ability to capture low light photography with very little noise. With the introduction of D3X, the jury's still out on whether the increased pixel count on the same sensor size will produce similarly exceptional quality photos like the D3.
So the next time you're out buying a new digital camera for yourself, the wife or mistress, don't be fooled by the salesperson flogging the latest compact cameras with 20 megapixels capability. More megapixels is not necessarily a good thing. Remember this: we want bigger pixels, not more pixels.


Call for Papers
Workshop on IoT Robot
For the last decades, service robots have achieved a tremendous improvement gaining popularity in various areas spanning from homelife through travelling and education to medicine. Efficiently combining with Internet of Things (IoT) systems, the combination promises a revolutionary potential with the latter providing a large number of information services through pervasive networks, enabling intelligent devices to use both local and distributed ’intelligence’ for optimized action, interaction and autonomous behaviour. The Robot industry is growing fast while becoming an ever-present part of our everyday life. Robots can help us significantly when facing different tasks.
Nowadays, many countries are grappling with how to care for the growing population of elderly people. Service robots are specifically purposed to assist the elderly and, of course, the disabled at the same time.
Nonetheless, the mentioned technology is at its initial stages with an eminently limited scope of embodiment, lacking more extensive research despite a positively predicted future of development.
Therefore, there is demand for a multidisciplinary approach to this exhaustive study in order to exploit the full potential of combining multi-sources communications and robotics for researchers and engineers from different related fields all over the world.
The purpose of this workshop thus emphasizes provision of a common forum for sharing ideas and experiences related to the topic of Internet of Robotic Things (IoRT) and robots regarding development, testing and assessment from both robotics and IoT communities. Discussion also further expands the state-of-the-art technologies and addresses challenges for identifying both approaches, solutions and potentials to fulfilling society’s demands that utilizes the IoT-robotics convergence.
Particular topics of interest include, but are not limited to:
- IoT technologies that enhance service robots’ capability
- Computation offloading / Service migration on IoT robot system
- Rehabilitation robotics with IoT applications
- Physically assistive devices / Wearable robotics / Welfare technology combined with IoT technologies
- Internet of Robotic Things in transportation
- IoT-assisted autonomous driving
We invite workshop participation through contributions that respond to one or more of the mentioned research questions in 6-10 pages. Papers should be submitted through EAI ‘Confy+‘ system, and have to comply with the Springer format (see Author’s kit section).
Accepted and presented technical papers will be submitted for publication by Springer and made available through SpringerLink Digital Library. Workshop Papers will be published in a dedicated section of the MONAMI Conference Proceedings. Proceedings will be submitted for inclusion in leading indexing services, including Ei Compendex, ISI Web of Science, Scopus, CrossRef, Google Scholar, DBLP, as well as EAI’s own EU Digital Library (EUDL).
Paper Submission deadline: 20 July 2020
Notification deadline: 20 August 2020
Camera-ready deadline: 20 September 2020
Cheng Zhang, Waseda University, Japan
Peng Li, The University of Aizu, Japan
Celimuge Wu, The University of Electro-Communications, Japan
Xiaoyan Wang, Ibaraki University, Japan
Huan Zhao, Huazhong University of Science and Technology, China
Bo Gu, Sun Yat-sen University, China


- 2-IN-1 TECHNOLOGY - A must-have in every home, the Olens Technology LampChamp is a 2-in-1 base that allows you to light up your bulbs and charge your gadgets at the same time! Since it features a handy on and off switch control for the lightbulbs and a built-in charging port that fits any standard USB cable, you no longer have to worry about where to charge your devices.
- CONVENIENT CHARGING - Are you having a hard time looking for a socket near you? You don't have to charge your phone at that awkward plug behind the sofa anymore with the LampChamp, since it lets you power up your phone just using your lamps! This allows you to use your phone comfortably while charging it on your side table.
- VERSATILE TO USE - With the LampChamp, you can charge your smartphones, tablets, e-Readers, and security cameras with ease. The LampChamp can quickly power up any of your devices that require 2 amperes or less. Its USB port is compatible with the standard USB cables that are utilized for charging. What's more, its USB charging system is always active even if your lamp is switched off, so you don't have to keep your lamps on while your gadgets are charging.
- PORTABLE - Simply put this product in your pocket and take it with you to a hotel, the office, or anywhere else you go, since this 2-in-1 technology is a portable base and adaptor that you can use on any type of lamp. However, Olens Technology highly recommends the use of LED bulbs in this E27 base, since they emit less heat and use less electricity than incandescent bulbs.
- EASY INSTALLATION - This base interface only requires three easy steps for installation, so you can install it in seconds. First, remove the bulb from a lamp, then screw in the LampChamp. Lastly, place a bulb on top of the base - and voila! Your lamp base and charging adaptor are now assembled. Perfect for the bedroom, living room, or lounge!
New Price: $24.99
Old Price: $24.99
You Save: $7.00
(as of 08/22/2017 01:33 UTC - Details
Today we are connected more than ever before, with cell phones and tablets – and everything needs power…. but where is that much needed power? Either behind that heavy sofa, bed or across the room. Never close and easy when you need it…. Until now! Introducing LampChamp LampChamp turns any standard lamp in your home into a USB Charging Station! Standard chargers have short cables that make them frustrating to use, but LampChamp puts the port right where you need it so you can charge and talk! Simply remove your existing light bulb, screw in LampChamp, then replace the bulb! Perfect for bedside lamps for overnight charging or reading in bed. LampChamp works at Home, at the Office, or in the Hotel. Get a LampChamp for every lamp in your home and always be within reach of power! LampChamp powers and charges phones, tablets, eReaders, anything with a USB! Specifications: Input: 100-240V AC, 50/60 Hz Output: 5V DC, 2A Base Interface: E27 LED Bulb Wattage: <60w


– Interactive Sound Simulation and Rendering
Wednesday 27th by Dinesh Manocha
Extending the frontier of visual computing, sound rendering utilizes sound to communicate information to a user and offers an alternative means of visualization. By harnessing the sense of hearing, audio rendering can further enhance a user’s experience in a multimodal virtual world and is required for immersive environments, computer games, engineering simulation, virtual training, and designing next generation human-computer interfaces.
In this talk, we will give an overview of our recent work on sound synthesis and sound propagation. These include generating realistic physically-based sounds from rigid body dynamics simulations and liquid sounds based on bubble resonance and coupling with fluid simulators. We also describe new and fast algorithms for sound propagation based on improved wave-based techniques and fast geometric sound propagation. Our algorithms improve the state of the art in sound propagation by almost 1-2 orders of magnitude and we demonstrate that it is possible to perform interactive propagation in complex, dynamic environments by utilizing the computational capabilities of multi-core CPUs and many-core GPUs. We will also demonstrate applications to design of next-generation musical instruments, computer gaming, room acoustics, and outdoor sound propagation.
Joint work with faculty and students of GAMMA group at UNC Chapel Hill. http://gamma.cs.unc.edu/Sound
Dinesh Manocha is currently the Phi Delta Theta/Mason Distinguished Professor of Computer Science at the University of North Carolina at Chapel Hill.
He received his Ph.D. in Computer Science at the University of California at Berkeley 1992. He has received Junior Faculty Award, Alfred P. Sloan Fellowship, NSF Career Award, Office of Naval Research Young Investigator Award, Honda Research Initiation Award, Hettleman Prize for Scholarly Achievement. Along with his students, Manocha has also received 12 best paper & panel awards at the leading conferences on graphics, geometric modeling, visualization, multimedia, and high-performance computing.
He is a Fellow of ACM, AAAS, and IEEE. He received Distinguished Alumni Award from Indian Institute of Technology, Delhi.
Manocha has published more than 350 papers in the leading conferences and journals on computer graphics, robotics, and scientific computing. He has also served as a program committee member and program chair for more than 100 conferences in these areas, and editorial boards of many leading journals.
Some of the software systems related to collision detection, GPU-based algorithms and geometric computing developed by his group have been downloaded by more than 100,000 users and are widely used in the industry. He has supervised 22 Ph.D. dissertations.
– Towards patient specific biophysical modeling : application to cardiology
Thursday 28th by Hervé Delingette.
Therapy training and planning often require to simulate the physics and the physiology of the human body in a patient specific manner but with different objectives and constraints. While interactive computational efficiency is often required to develop interactive medical simulators for therapy training, accurate models compatible with clinical constraints must be developed for therapy planning. In this presentation, I will outline the challenges involved when creating biophysical models from medical images for both therapy training and planning. A specific focus will be given on the efficient and realistic simulation of soft tissue deformation which combines elements of geometry, finite element modeling and physics. Several software pipelines will be presented linking medical images to patient specific models in the context of cardiac therapies.
Hervé Delingette is currently a research director in the ASCLEPIOS research team at the INRIA research center in Sophia Antipolis. He received in 1989 a Master degree and in 1994 a PhD degree from the Ecole Centrale des Arts et Manufactures de Paris, (France) and was habilitated in 2006. From 1989 until 1992, he was a Visiting Scientist at the Robotics Institute of Carnegie Mellon University (CMU) and the Human Interface Laboratory of Nippon Telegraph and Telephone (NTT). His research interests are in the fields of medical image analysis, image segmentation, soft tissue modelling, surgery simulation and computational models of the human body. He authored more than 60 journal papers in those fields and co-chaired the First Symposium on Surgery Simulation and Soft Tissue Modelling in 2003 and the fifth international conference on Functional Imaging and Modelling of the Heart in 2009.


Through SLDCTS technology, satellite scan detection implements targeted investigation of leaks with high accuracy, saves labor and time for investigation, greatly reduces the work intensity of field personnel, and improves the efficiency of leak detection.
Through SLDCTS technology, connect with smart terminal equipment to obtain water pressure, metering, etc. and leakage related data, and improve leakage point management efficiency!
Through SLDCTS technology, the inspection and maintenance department of the water department can share information and data, helping inspectors and maintenance personnel work seamlessly and improve the efficiency of leak detection and repair!
Through the SLDCTS technology, ordinary citizens are connected to the water department. The water department repair department can repair the leak at the first time, improving the alarm performance of the leak!
Through SLDCTS technology, the specific algorithm of the back-end system calculates and counts the data related to the difference between production and sales, strengthens scheduling, and improves the efficiency of leaking data analysis!
After eight years of development, Hunan Lileli Environmental Protection Technology Co., Ltd. has grown into a green and environmentally friendly enterprise with independent intellectual property...detail


Why is this important: Google Research is working on a new AI image noise reduction technology that could radically change low-light photography. The tool is able to reconstruct a dark scene with powerful denoising and minimal artifacts, comfortably outperforming existing denoising tools.
Computational photography has come a long way and is now widespread in smartphones and post-processing software. Noise reduction is arguably one of the most valuable tools, as even the best camera sensors are not free from image noise, especially when used in a darker environment. Google Research has unveiled an exciting new technology that uses artificial intelligence to remove image noise from darker scenes, allowing photographers to “see in the dark”.
They call this new tool RawNeRF and it is part of their open source project known as MultiNeRF. RawNeRF is able to help photographers capture darker scenes specifically. It uses AI that has unprecedented denoising power, and what’s really impressive is that denoising seems to happen with minimal quality loss and far fewer artifacts than comparable tools.
NeRF (Neural Radiance Fields) is a view synthesizer capable of digitizing a collection of images and reconstructing an accurate 3D rendering. Google researcher Ben Mildenhall explains that RawNeRF “combines images taken from many different viewpoints to jointly denoise and reconstruct a scene.” So it’s not just a denoiser, but it can be used to vary the camera position and view the scene from different angles. Scenes are reconstructed in a linear HDR color space, which means it can handle details like varying exposure, using tone mapping, and changing focus.
As seen in the video above, Mildenhall uses a smartphone photo of a candlelit table to demonstrate the power of RawNeRF. It applies minimal post-processing and brightening, and while the resulting image is more detailed, it has a significant amount of sensor noise. It shows that passing the image through a state-of-the-art deep denoiser leaves unsightly artifacts, but with RawNeRF the results are truly astounding, especially with respect to image quality and lack of artifacts. The reason it works so well is because the AI is trained on raw image data rather than post-processed JPEGs.
It’s exciting to think that we could see this technology incorporated into our cameras and smartphones very soon, and it’s likely to be a game-changer for professional photographers and enthusiasts alike. There is no existing noise reduction tool that even comes close to these results.


Suitable for advanced undergraduates and graduate students, this text introduces theoretical and practical aspects of adaptive control. It offers an excellent perspective on techniques as well as an active knowledge of key approaches. Readers will acquire a well-developed sense of when to use adapti..
This second volume of the -Arduino Project Handbook delivers 25 more -beginner-friendly electronics projects. Get up and running with a crash course on the Arduino, and then pick any project that sparks your interest and start making Each project includes cost and time estimates, simple instruction..
This updated edition is an introduction appropriate for both the student and hobbyist to the theory and practice of electronics. It leads the reader through introductory understanding of the science underlying electronics, building basic circuits, learning the roles of the components, the applicatio..
Explains the science and technology behind robots, and shows you what materials you need to build and program a robot for home, school, and competition. NUME CARTE: Build Your Own Combat Robot, PaperbackISBN: 0072194642PRET EDITURA: 123.99AUTOR(i): Pete MilesEDITURA: McGraw-Hill/Osborne MediaCOPERTA..
This volume features computational tools that can be applied directly and are explained with simple calculations, plus an emphasis on control system principles and ideas. Includes worked examples, MATLAB macros, and solutions manual. NUME CARTE: Computer-Controlled Systems: Theory and Design, Paperb..
This definitive do-it-yourself book on creating and testing all kinds of speaker systems is updated to cover the latest makes and models. It also includes new speaker tests, expanded information on crossover networks, techniques for designing double-chamber reflex enclosures, practical rather than t..
The book introduces basic programming of ARM Cortex-M cores in assembly and C at the register level, and the fundamentals of embedded system design. It presents basic concepts such as data representations (integer, fixed-point, floating-point), assembly instructions, stack, and implementing basic co..
3D printing has been the hot topic in the maker world for years now, but there's another type of desktop manufacturing that's become the go-to choice for anyone who needs durable results fast. Instead of slowly depositing layers of plastic, a 3D carver starts with a solid block of material and carve..
Use a forty-dollar credit card-sized computer to enhance your amateur radio operating. Learn how to set up and configure the computer. Then learn how to install operating aids, such as logging, timekeeping, satellite tracking, and Morse code practicing. Communicate in sixteen digital modes. Design a..
This book is your introduction to to physical computing with the Arduino microcontroller platform. No prior experience is required, not even an understanding of basic electronics. With color illustrations, easy-to-follow explanations, and step-by-step instructions, the book takes the beginner from b..
Sometime in the future the intelligence of machines will exceed that of human brain power. So are we on the edge of an AI-pocalypse, with superintelligent devices superseding humanity, as predicted by Stephen Hawking? Or will this herald a kind of Utopia, with machines doing a far better job at comp..
Fully updated coverage of PCB design and construction with EAGLEThis thoroughly revised, easy-to-follow guide shows, step-by-step, how to create your own professional-quality PCBs using the latest versions of EAGLE. Make Your Own PCBs with EAGLE: From Schematic Designs to Finished Boards, Second Edi..
Make: Drones will help the widest possible audience understand how drones work by providing several DIY drone projects based on the world's most popular robot controller--the Arduino. The information imparted in this book will show Makers how to build better drones and be better drone pilots, and in..
Want to learn even more about electronics in a fun, hands-on way? If you finished the projects in Make: Electronics, or if you're already familiar with the material in that book, you're ready for Make: More Electronics. Right away, you'll start working on real projects, and you'll explore all the ke..
Make: Sensors is the definitive introduction and guide to the sometimes-tricky world of using sensors to monitor the physical world. With dozens of projects and experiments for you to build, this book shows you how to build sensor projects with both Arduino and Raspberry Pi. Use Arduino when you nee..
Making Simple Robots is based on one idea: Anybody can build a robot That includes kids, school teachers, parents, and non-engineers. If you can knit, sew, or fold a flat piece of paper into a box, you can build a no-tech robotic part. If you can use a hot glue gun, you can learn to solder basic el..
The workbenches of hobbyists, hackers, and makers have become overrun with microcontrollers, computers-on-a-chip that power homebrewed video games, robots, toys, and more. In Making Things Talk, Tom Igoe, one of the creators of Arduino, shows how to make these gadgets talk. Whether you need to conn..
The mBot robotics platform is a hugely popular kit because of the quality of components and price. With hundreds of thousands of these kits out there in homes, schools and makerspaces, there is much untapped potential. Getting Started with mBots is for non-technical parents, kids and teachers who wa..
This market-leading textbook remains the standard of excellence and innovation. Built on Adel S. Sedra's and Kenneth C. Smith's solid pedagogical foundation, the seventh edition of Microelectronic Circuits is the best yet. In addition to updated content and coverage designed to reflect changes in IC..
Optimal control theory is the science of maximizing the returns from and minimizing the costs of the operation of physical, social, and economic processes. Geared toward upper-level undergraduates, this text introduces three aspects of optimal control theory: dynamic programming, Pontryagin's minimu..
- An] essential book... it is required reading as we seriously engage one of the most important debates of our time.---Sherry Turkle, author of Reclaiming Conversation: The Power of Talk in a Digital Age From drones to Mars rovers--an exploration of the most innovative use of robots today and a prov..
Discover what robots can do and how they work Find out how to build your own robot and program it to perform tasks Ready to enter the robot world? This book is your passport It walks you through building your very own little metal assistant from a kit, dressing it up, giving it a brain, programmi..
This tutorial-style presentation of the fundamental techniques and algorithms in adaptive control is designed to meet the needs of a wide audience without sacrificing mathematical depth or rigor. The text explores the design, analysis, and application of a wide variety of algorithms that can be used..
Select, invest in, and deploy a Real Time Location System Is your business ready for an RTLS? This friendly, hands-on guide shows you how to understand and implement this cutting-edge technology, explaining RTLS methodologies in plain English. From the initial deployment to monitoring to determining..
Take your video projects to the next level with the power of green screen This easy-to-follow guide clearly explains green screen technology and shows, step-by-step, how to dream up and create professional-grade video effects. Written by a teacher-maker-librarian, The Green Screen Makerspace Project..
LEGO MINDSTORMS has changed the way we think about robotics by making it possible for anyone to build real, working robots. The latest MINDSTORMS set, EV3, is more powerful than ever, and The LEGO MINDSTORMS EV3 Discovery Book is the complete, beginner-friendly guide you need to get started.Begin wi..
The LEGO(r) MINDSTORMS(r) EV3 set offers so many new and exciting features that it can be hard to know where to begin. Without the help of an expert, it could take months of experimentation to learn how to use the advanced mechanisms and numerous programming features.In The LEGO MINDSTORMS EV3 Labor..
Ayumi is a world-class shogi (Japanese chess) player who can't be beaten--that is, until she loses to a powerful computer called the Shooting Star. Ayumi vows to find out everything she can about her new nemesis. Lucky for her, Yuu Kano, the genius programmer behind the Shooting Star, is willing to ..
The LEGO(R) MINDSTORMS(R) NXT 2.0 set offers hundreds of building elements, programming software, and powerful electronics that you can use to create amazing robots. But where do you begin? This eagerly awaited second edition of the bestselling Unofficial LEGO MINDSTORMS NXT Inventor's Guide is your..


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SpaceX and Starlink, what’s the deal with all my posts lately.
Elon Musk got his start developing (and selling) an online yellow pages-type site in the 90s. He used that money to fund his next project, an online bank called X.com. Musk earned his first real fortune about three years later when he sold his stake in Paypal. (Musk’s company, X.com and another company, Confinity, had merged to become Paypal.)
Musk had been talking about Mars for a while and with just shy of 200 million dollars in his pocket from the Paypal sale, Musk decided he would use some of his new fortune to send a rocket to Mars. The trip was intended to re-ignite excitement about space and space exploration.
To find his Mars rocket, first he went to Europe to see if he could buy one from Arianespace. Musk decided they wanted too much for their rocket and next he tried to buy an intercontinental ballistic missile from Russia. Again the price wasn’t right, and after these two failures, Musk decided he would just build his own rocket. (How hard could it be, right?)
He became a student of rocketry, aerodynamics, space launch systems, and more. He read all the textbooks and papers. He talked to all the experts in all the fields. And then he began to hire them. They would form a company and build an initial test rocket, called Falcon 1, that in about 5 years of development time would become the first privately funded liquid fueled rocket to achieve Earth orbit. That company, called SpaceX, would, about 5 years later, in 2010 launch a second generation rocket, the Falcon 9. Falcon 9 would evolve over the next 5 years to become a partially re-usable rocket (the bigger and more expensive part of the rocket, the booster, flies back to Earth, lands, and is used for repeat launches) achieving its first successful landing in 2015 and first reuse in 2017. Today, the Falcon 9 program has over 110 flights with about half being on reused boosters.
With a small fleet of these re-usable Falcon 9 rockets, and the steeply discounted prices they could offer, SpaceX was able to capture the lion’s share of the global satellite launch business over the next several years. And with that same program, SpaceX also gained a considerable share of contracts for U.S. Government launches including lucrative International Space Station cargo and astronaut crew missions.
Revenue from its space launch business was used to fund the design and development of SpaceX’s next ambitious rocket, a spacecraft that would eventually be called Starship. Taking re-usability lessons, and actual engineering and software, from the proven Falcon 9 program, scaling it up about five times, and making it fully reusable, the Starship program would be suitable not just for even cheaper access to Earth orbit, but, finally, Musk’s trip to Mars
Twenty years after his initial plan to send a rocket to Mars, Musk was finally getting close. But by this time, his goals for Mars had evolved. No longer was it about a single trip to Mars to inspire a new generation of space enthusiasts, to re-ignite a passion for space exploration that had mostly cooled since the end of the Space Race. No, now his plan was much grander, to make human civilization multi-planetary by sending a million people to Mars.
Now, this new plan, a city on Mars, is going to require a massive fleet of fully reusable Mars rockets (they have to fly back from Mars, afterall, and it’s going to take many repeat trips, even with a large fleet, to deliver a colony to Mars.) Musk and SpaceX have already built and tested several full-scale prototypes of this new Starship rocket and it’s working well, but assuming the design proves sound, flexible enough for various mission profiles, and relatively cheap, SpaceX still has to build and operate a truly massive fleet of these for a Mars colonization project. And no matter how creative SpaceX is about keeping Starship’s costs down (they’re currently testing orbital and sub-orbital Starship rockets, built with stainless steel, welded together in a field, under some tents, in South Texas) a massive fleet of these massive rockets isn’t going to come cheap.
It had become clear to Musk that sending satellites, equipment, and people into low earth orbit, even if SpaceX dominated the market for those space launch services, wasn’t going to be lucrative enough to fund the production and maintenance of a Starship fleet large enough to transport a colony to Mars. Musk needed a new plan.
He looked around at what they had on hand at SpaceX, a new fleet of re-usable Falcon 9 rockets, a steady income from their space launch service, and a promising design for Starship, a vehicle capable of not only reaching Mars, but lifting gigantic payloads into Earth orbit. How could they leverage their existing resources to dramatically ramp up revenues, and quickly?
The answer was revealed in 2015 when SpaceX announced plans for a project to deliver high-speed, low latency internet from space, well, from a satellite, well, actually from a whole mess of satellites, thousands of them, probably tens of thousands. Now, to deliver high-latency, slow internet only requires a few giant, geostationary satellite and that only requires a few launches. But to deliver fast and reliable, true broadband internet service from space takes a whole bunch of satellites, as noted earlier possibly tens of thousands (assuming the they want the capacity to serve millions or hundreds of millions of people.) And that’s hundreds of rocket launches.
Well, what can SpaceX do better than any company on Earth? They can launch lots of things into Earth orbit quickly, and they can do it for dirt cheap. SpaceX’s plan would go something like this this. They would find a dozen satellite launch customers willing to pay for new Falcon 9 rockets, and then, after those commercial mission were flown, SpaceX would re-fly those same rockets, each one ten times or more (only paying for fuel and new upper stages, so super cheap) to launch thousands of their own internet satellites. (And when Starship is ready in couple of years, it will be able to launch up to ten thousand Starlink satellites each year and at a lower cost!)
They had a plan to accumulate the used Falcon 9 rockets, but they didn’t have two other important pieces of the puzzle. So SpaceX got into the satellite and antenna businesses. Once again, Musk studied up and he and SpaceX hired up some of the top people and they developed an inexpensive, super-thin and light satellite that could be built on an assembly line, flat packed, stacked, and launched into orbit by Falcon 9 in batches of 60. They also developed a consumer price-range phased array antenna that could track all of these low-flying satellites without actually moving. And they ramped up assembly lines to build the satellites and the user antennas in bulk. Today there are over 1,000 Starlink satellites in Earth orbit and that number will more than double by the end of this year — and by the end of next year there will be more Starlink satellites in orbit than all other companies’ and governments’ satellites combined.
Starlink, according to Musk, has two purposes. It exists to provide high speed, low-latency internet to millions of people around the world, mostly rural, who today lack broadband internet access or meaningful choice. And second, Starlink exists to fund the Starship program to eventually colonize Mars. SpaceX thinks that the Starlink satellite internet business can generate about 5 times the revenue of their space launch business and that’s just the kind of money they need to build, deploy, and maintain that massive fleet of massive Mars rockets.
So, this Starlink internet service that I’m testing out, and have been posting so much about lately, is also a means to Mars. And if there’s anyone reading this who was following me online back in the day, you’ll know that Mars exploration is a passion of mine. From Soujourner, to MGS and Odyssey, to MRO, Spirit and Opportunity, and through to today with Insight and Perseverance (and let’s not forget that Curiosity, Opportunity, MRO, and Odyssey are all still alive, kicking ass and taking names on and around the red planet.)
If SpaceX is successful with Starlink, Mars exploration will get a huge boost. Whether or not we will end up with a large scale colony on Mars by mid-century, I don’t know. But I do believe with Starship we could see the first humans on the red planet this decade. I think that would be amazing and that means you can expect to hear plenty more from me about SpaceX and Starlink (and Mars.)


Just 20 years ago we were attaching bulky lights to our 8-bit Game Boys in order to save Princess Peach after sundown, and rewinding VHS tapes by hand to avoid surcharges from a now-defunct movie rental store. Now, just two decades later, we literally have flying cars and autonomous attack quadrotors capable of working together in the most terrifying fashion imaginable.
To put this incredible advancement of technology into perspective, here’s a look at three gadgets that are so innovative that it is hard to believe that they actually exist.
The Lytro is the first of its kind: a shutter-less camera capable of capturing the entire light field of an image, allowing aspiring photographers to focus the picture after it has already been taken. Yes, even the description sounds like it was written by Spock:
The Lytro camera captures the entire light field, which is all the light traveling in every direction in every point in space.
The prototype consisted of 125 individual camera tethered together in a panoramic array, but Lytro somehow managed to squeeze an entire room full of equipment into a handheld device no bigger than a standard point-and-shoot.
Despite the fact that Harry Potter doesn’t even have an iPhone to communicate with (or an owl, for that matter), Wizards have somehow managed to outpace muggles in the whole moving-ink department. Not to worry, dearies, Samsung recently showed off their new flexible screen technology, which they claim will make its way into customers’ eager hands next year. We’re still a few years away from rolling up televisions into our trousers, but a bendy-phone shouldn’t be too far off.
The thermostat industry may appear to be mild-mannered upon first glance, but we can assure you, it’s about to get very cool. The designer of the iPod broke into this not-overly exciting market in 2009, and just last week, he revealed his surprisingly elegant vision for the future of home temperature management. The Nest is a thermostat capable of programing itself based on the time of day, outside temperature, and whether or not you are home (yes, we are aware of how HAL9000 that sounds). It may seem unimpressive compared to a robot vacuum, but the Nest is the first step toward home automation for the masses. If a seemingly trivial appliance like a thermostat can come equipped with WiFi and advanced sensors, it’s only a matter of time before even the most mundane products become sentient. Plus, it’s able to save homeowners hundreds of dollars every year by reducing energy costs—and it looks lovely.


- Celestron’s iconic “orange tube” design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike
- 4-inch aperture provides excellent light-gathering ability at an affordable price. You’ll get impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor
- NexYZ connects your smartphone to your telescope, spotting scope, binocular, monocular, and microscope so you can capture images and video through the eyepiece.
- Works with a wide range of mobile phone models, including all the latest devices from Samsung, Google, and Apple.


6+2 Port GIG Switch Kit
With the switch kit a POF home network could be established. The switch kit can be used in multiple ways. Not only as the main network node, also as an additional network node through cascading. Beside the 6 POF interfaces also two common RJ45 interfaces can be found if the kit is installed as described in the quick guide. So, up to two network devices can be connected to the POF network without the need of an additional media converter. The fan less design allows the use of the switches in noise sensitive places. The switches supports QoS mechanism and is ready to use without further configuration.
Because of the use of standardized IP protocols, the switch is compatible to all other network devices. Main features are high data rate up to 1 Gbps and low power consumption.


The objective of this preliminary WP is to identify the current needs and problems regarding tool and machine components wear, surface defects and set-up difficulties of the industrial roll forming processes. Although preliminary research has been done with ARestant to identify principal critical aspects of the process, during this WP a complete and detailed analysis will be done in order to early identify the critical cases of the project. For that, the experience of the research consortium will be used.
- data M SMS and data M Scandinavia, as COPRA FEA RF suppliers will finally define the specifications of the new Torque and Wear module
- data M SMS and Fagor Arrasate will define the technical specifications of the servo-control board and the associated control strategies to be used
- ARestant will define the laboratory and industrial use-cases and the remote set-up assistant specifications.
The objective of the Work Package is to develop a new Torque and Wear estimation module to be introduced in the COPRA FEA RF software of data M.
For that three steps are envisaged. Firstly, advanced material and contact characterization tests will be performed. With the data obtained, advanced material and contact models suitable to represent the roll forming technology will be developed and compared with classical models to evaluate their precision and choose the most appropriate ones.
In a second step, a complex numerical model will be developed able to estimate tool torques and wear. For that, user subroutines will be used for the computation of the wear and rotation will be added to the rolls (unlike in the current model where the strip is fixed and rolls are moved lineally and without friction to avoid excessive computation time). Being the model validated, for different process conditions (i.e. roll gap influence correction, etc.) new methods to decrease the computational costs will be studied.
Finally, the optimized model will be programmed under COPRA FEA RF language, since the software links the AutoCAD CAD software, the COPRA RF roll optimization software and the final COPRA FEA RF finite element validation software.
Image: data M Sheet Metal Solutions
The objective of WP3 is to design, manufacture a new servo-control board to test new control strategies for roll forming that will:
- Improve the tool wear
- Balance the torques along the roll forming line and increase the machine life
- Increase the energy efficiency
- Increase the final geometrical accuracy
- Improve the aspect defects due to friction (i.e. painting scratches, friction lines)
- Communicate the process key variables and signals to process designers and workshop operators
Four steps will be followed: the design and assembly of the control board using the selected hardware including the wireless communication platform and data storing computer, the programming of the different control strategies to be tested during the experimental testing at laboratory level, the selection of the appropriate strategy or strategies to be applied in roll forming and the final optimization of the control-board and control strategy for its final industrial use.
The workpckage 4 is devoted to create the remote set-up assistant for roll forming.
First step will be to create a friendly and easy to use GUI. This will be the link the workshop operator will use to read and write information in the control board data storing computer. In parallel, the data storing software and structure will be developed and programmed. For these two tasks, specification of workpackage 1 will be used.
Secondly, the wireless communication module will be set. Robust communication between the COPRA FEA RF Torque and Wear module and the operator’s remote set-up assistant (PDA or similar) must be assured.
Finally the whole set-up remote assistant will be tested at laboratory scale, using the 6 forming stand roll forming line available at Mondragon. Communication of the whole systems will be tested to see the robustness of the holistic approach we would like to bring to the industry.
Debugging and optimization tasks will be performed for the final optimization of the system before its industrial testing.
Workpackage 5 is the industrial validation of the SERVROLL project. The objective is to apply the holistic optimization methodology in ARestant production, using critical profiles that suffer from wear and geometrical quality deviations and are critical from the point of view of set-up time.
Two use-cases are foreseen: a high thickness profile and a high height profile. The first will require high forming torques and the second will be critical from the point of view of tool wear and surface defects.
The optimized COPRA FEA RF Torque and wear module will be used to simulate the profiles forming and key parameters will be sent and stored in the control board database. This numerical data will be communicated via the PDA to the workshop operator for the first time set-up (a conventional set-up will be monitored and the operator will be guided with monitored signals).
With this set-up a representative set of coils will be processed to see study the process variability. The data will be stored in the control board database for future production of this reference and defect detection and overloading protection envelops will be tested for the profiles.
During the industrial production, all the partners will participate and benefits will be quantified to be used in the commercialization of the new products.
Image: Fagor Arrasate
The objectives of the Work Package 6:
- To make stakeholders aware of the project and to disseminate the project results
- To generate plans for the use and dissemination of the knowledge
- To define a strategy for a proper IPR protection
- To generate an initial exploitation plan to exploit the project results


With its web based API and open architecture, the V.I.O. Stream fills the ever growing demand for a web programmable IP camera that is compact, easily mounted static or on person, and with a ruggedized form factor. HD video can be streamed live via RTSP enabled Wi-Fi connection or recorded internally.
Designed for seamless integration, the V.I.O. Stream is an RTSP (Real Time Streaming Protocol) enabled device capable of streaming full HD 1080p video wirelessly or via IP over USB.
Featuring an open architecture, complete control of the device and depth of features can be accessed through the open API, allowing integrators and developers to craft a unique user experience.
Our Customer Care lines are open Monday-Friday 8am - 4pm Central. You may leave a voicemail message during non-business hours.


Accessible from Anywhere, Anytime
Since Dell Boomi hosts the application, all you need is a computer or an alternative device that can run a Web browser. It does not matter what type of hardware or operating system you are running. Access the AtomSphere platform via any web browser and begin creating integration processes immediately using an intuitive visual design interface and a library of pre-built connectors and processes. Users can build very simple to very sophisticated integrations with exceptional speed. As the AtomSphere community expands, an increasing number of connectors and process maps are already built and ready for your use.
Integrate and Innovate with Ease
AtomSphere is designed to be user-friendly and anyone with basic IT skills and knowledge of the applications they plan to integrate should be able to build integration processes easily. Our customers have reported that using AtomSphere is similar to using other web-based software. With a simple drag-and-drop workflow and no coding required, very minimal involvement from your IT department is needed.
Boomi’s Atom runtime engine, Boomi Molecules, provides fault tolerance and self-healing capabilities. Using intelligent load balancing and distributed architecture (as well as regular load testing scenarios that simulate higher demands of up to 10 times), Dell Boomi’s AtomSphere has no single point of failure so you are guaranteed high availability and uptime. All data is also securely backed up in the highly unlikely event of a system-wide failure.
Dell Boomi Makes Integration Easy
The Dell Boomi platform allows companies of all sizes and any vertical to integrate data between their key applications without acquiring or maintaining hardware or software. Enjoy a significant reduction of data errors over manual data entry and increased production through the power of integration and process automation.
Dell Boomi Expertise
Combining Dell Boomi’s SaaS-based integration tools and Trajectory’s implementation and migration expertise, Trajectory can deliver a technology-free NetSuite integration in days or weeks where others take months. For your next integration project, trust Trajectory.


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