Features Working Principle: An analog vibration sensor based on a piezoelectric ceramic sheet is an inverse transformation process that uses piezoelectric ceramics to generate vibration. When the piezoelectric ceramic piece vibrates, an electrical signal is generated. Achieve Interactions: Special sensor expansion boards are used in combination, and analog ports can be weakly perceived. Vibrating electrical signals enable interactive work related to vibration, such as electronic drum interactions. Adjustable Sensitivity: According to the greater the vibration intension, the higher the output voltage, the sensitivity of the vibration amplitude can be adjusted by the potentiometer. And can be adjusted to respond with a mouth blow or an output with a hand tap (Low turn sensitivity is low, right turn sensitivity is high). ADO Output: The analog voltage ceramic vibration sensor is connected to the controller analog terminal A0 according to the program. When the vibration degree is different, observing the output value of the serial port can realize the vibration-related interaction work. DO output: TTL level output. Output signal LED indication. The TTL output valid signal is high level, the output control current can reach 1A, and external high-power LED lights can be connected. Specification: Item Type: Vibration Switch Sensor Module Working Voltage: 5.0V (DC) Interface Type: AD/DO AO: Analog Signal Output DO: TTL Level Output Working Temperature: -10 ° C ~ +70 ° C Size: Approx. 20 x 20mm / 0.8 x 0.8in Weight: 4.5 g / 0.2 oz(approx.)Test Method and Wiring: G (GND):: Power ground V (VCC): Operating voltage 5V (DC) ADO: Analog signal output According to the vibration intension, the higher the output voltage, the higher the vibration amplitude sensitivity can be adjusted by the potentiometer (the left turn sensitivity is low, the right turn sensitivity is high). The high sensitivity output can be adjusted to respond with a mouth blow or a tap with a hand. DO: TTL level output. Output signal LED indication. TTL output valid signal is high level, output control power Package List: 1 x Module Package List 1 x Module