Description: It not only allows for ease of development and prototyping but also makes for a convenient way to connect up many external devices/sensors as a finished product. The not only all the digital and analog interface to the form of rudder line sequence to expand out,But also Bluetooth module communication interface, card module communication interface,APC220 radio frequency module communication interface,and RB URF v1.1 sensor interface, expansion easier to use. For beginners,don't need to headache for the complicated Circuit connection, this sensor expansion board will really simplify the circuit, can easily connect commonly used sensors. A common 3P Sensor connection cable (regardless of digital cable and analog cable), complete the circuit connection, the preparation of the corresponding program downloaded to the MEGA controller to read the sensor data, or receive wireless module back to the data, after processing, Easily complete your own interactive work. Material: Board Color: As Pictures Shown Size: Approx. 10x 5.3cm/ 3. 2.09inch Package Includes:(4 Pack) 1 Piece Sensor V1.0 Expansion Development Board