ArduinoUNO this map is based ATMEGA328P a micro-controller version download performance data and engineering connected to the computer via USB cable. It has 14 digital input / output, analog input ports 6, 6 of them which can be used as input and output ports PWM output, digital input and output ports 14 of its voltage operation is 5 V, and the output of each of the maximum current access channel box 40 mA, the time of the experiment do not exceed this current, and the configuration of the internal pull-up resistors 20-50K ohms.