Sun3Drucker Multi-Function Shield Expansion Board Prototype Module with Buzzer LED Indicator Compatible Arduino 2009 Uno LENARDO Mega2560

4-way LED indicator, these indicators can be used directly working status LED indicates the procedure to facilitate debugging. DS18B20 temperature sensor interface that can be done to measure the temperature of the experiment (DS18B20 is not included). LM35 temperature sensor interface that can be done to measure the temperature of the experiment (LM35 is not included). 3296 precision adjustable potentiometer, analog input port (can be used for controlling LED brightness, turn the steering angle, the digital voltage, etc.) Integrated infrared receiver socket that can fit any infrared remote control experiments (Infrared receiver is not included).