Features:<br> Completely compatible with interfaces<br> Providing beginners basic experimental module<br> A board integrates various modules function<br> No welding, no connection, you can download the program directly to complete the experiment<br> Provide all the module code library files, all tested and can be used directly<br> Set aside expansion port, you can complete other modules experiment<br> The high row pin design will avoid contact with USB port of the board, so prevent from occur short circuit.<br> Function: 2-way button module,2-way LED module,Full Color LED Module, IR receiver module,Brightness sensor module,LM35D temperature sensor module,Passive buzzer module,Rotary potentiometer module, temperature and humidity sensor module.<br> One I2C interface (A4 SDA, A5 SCL),One TTL serial port,Two channel digital port (D7, D8),One channel analog port (A3),Reset button.<br> <br> <br> Specification:<br> Type: Multifunction Expansion Board<br> Weight: Approx.24g/0.8oz<br> <br> <br> Package list:<br> 1 x Multifunction Expansion Board<br> 1、Completely compatible with interfaces. 2、Providing beginners basic experimental module. 3、A board integrates various modules function. 4、No welding, no connection, you can download the program directly to complete the experiment. 5、Provide all the module code library files, all tested and can be used directly.