Features: - DS18B20 and LM35 temperature sensor interface can be used for temperature measurement experiments. - The infrared integrated receiver can be used in any infrared remote control experiment. - The buzzer can be used for sounding experiment.(The alarm can be sounded, etc.). - Bluetooth, wireless interface, voice module, voice recognition module can be used for wireless communication experiments. - The steering gear interface is convenient for driving the steering gear. - The infrared detection interface is convenient for docking with the infrared, realizing the traffic statistics, etc. Package Included: 2*Multi-functional Expansion Board Sensor Shield

Three independent keys and one reset key can be used for key experiment (Man-machine Interface). 3296 Precision adjustable potentiometer, analog input port (can be used to control LED brightness, turn the steering angle, digital voltage, etc.). 4 LED lights (LED indicator to know the importance of doing in the actual project, with this indicator can work directly with the program status indicators for easy debugging. Four digital (using 74HC595 driver provincial IO learning SPI), you can do digital display test (can display temperature, voltage, counter value, etc.). Perfectly compatible with 2009, UNO, LENARDO, 2560 and other controllers.