New Arduino MEGA Sensor Shield V1.0 dedicated sensor expansion board set market expansion board advantages in one design, PCB Immersion Gold processed all of the digital and analog interfaces, the motherboard will not only be extended to the steering gear line order form ad hoc Bluetooth modulecommunication interface, SD card module communication interface, APC220 radio frequency module communication interface, and RB URF v1.1 ultrasonic sensor interface, and independent expansion easier to use convenient. Arduino beginner, do not have cumbersome complex circuit connection and headache, will simplify the circuit on the true meaning of this sensor expansion board can easily connect the commonly used sensor, a sensor only needs a universal 3P sensor cable (regardless of digital cable and analog cable), complete the circuit connection, write the Arduino program is downloaded to theArduino MEGA controller reads the sensor data, or receive wireless module return data, operation processing, final Easily complete your own interactive works.