1.2-way button module.

2.2-way LED module.

3.Full Color LED Module.

4.IR receiver module.

5.Brightness sensor module.

6.LM35D temperature sensor module.

7.Passive buzzer module.

8.Rotary potentiometer module.

9.DHT11 temperature and humidity sensor module.

10.One I2C interface (A4 SDA, A5 SCL).

11.One TTL serial port.

12.Two channel digital ports (D7, D8).

13.One channel analog port (A3).

14.Reset button.