code: func (b *BlinkMDriver) Start() (err error) {
  	bus := b.GetBusOrDefault(b.connector.GetDefaultBus())
  	address := b.GetAddressOrDefault(blinkmAddress)
  
  	b.connection, err = b.connector.GetConnection(address, bus)
  	if err != nil {
  		return
  	}
  
  	if _, err := b.connection.Write([]byte("o")); err != nil {
  		return err
  	}
  	return
  }
docs: // Start starts the Driver up, and writes start command