Multi-functional Expansion Board Shield for Arduino UNO R3

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).
Four digital tube (using 74HC595 driver provincial IO learning SPI), you can do digital display experiment (can display temperature, voltage, counter value, etc.)
The buzzer sound can be used for experiments. (Can call the police, pronunciation, etc.)
Bluetooth, wireless interfaces, voice module, voice recognition module can be used for wireless communication experiment.
Servo interface, easy to drive servos. Infrared detection interface, easy and infrared docking realization of human traffic statistics, etc.