SEN0209

  Gravity: Flexible Piezo Film Vibration Sensor  SKU: SEN0209 Introduction This is an Arduino compatible piezo film vibration sensor. It is made up of flexible piezo film and converter board. The sensor is able to detect vibration, flexibility, impact and touch. The film is a flexible component comprising a 28 µm thick piezoelectric PVDF polymer film with screen-printed Ag-ink electrodes, laminated to a 0.125 mm polyester substrate, and fitted with two crimped contacts. As the piezo film is displaced from the mechanical neutral axis, bending creates very high strain within the piezo polymer and therefore high voltages (about ±90V) are generated. When the assembly is deflected by direct contact, the device acts as a flexible "switch", and the generated output is sufficient to trigger MOSFET or CMOS stages directly. The module uses universal Gravity 3Pin interface, easy plug, plug and play. It comes with Digital/Analog two kinds of output signal, suitable for all kinds of different applications. The piezo vibration sensor is not only able to detect strong shocks, but also to detect slight vibrations. There is an on-board sensitivity adjustment potentiometer, you can adjust it to increase/decrease the output threshold value. Meanwhile, the piezo film sensor has a wide dynamic range (0.001Hz~1000MHz) also guarantees an excellent measuring performance. Specification       Operating Voltage: 5V Interface Type: Gravity PH2.0 3Pin interface Operating Temperature: 0 ° C to 85 ° C Storage Temperature: -40 ° C to 85 ° C Dimension: 27mm * 22mm Weight: 10 g Board Overview   Num Label Description 1 GND GND 2 VCC VCC 3 Signal Signal Flexible Piezo Film Vibration Sensor Tutorial In this tutorial, we'll show you the sensor usage. Watch the serial monitor and LED "L" state. Note: The sensitivity potentiometer control the output threshold. When it ro tates towards "MAX" direction, it need more swing to trigger sensor. Requirements  Hardware DFRduino UNO x1 Flexible Piezo Film Vibration Sensor x1 M-M/F-M/F-F Jumper wires  Software Arduino IDE, Click to Download Arduino IDE from Arduino® https://www.arduino.cc/en/Main/Software%7C Connection Diagram Note: Turn the switch to "D" side Sample Code   /*************************************************** * Piezo Vibration Sensor * **************************************************** * This example The sensors detect vibration * @author linfeng(490289303@qq.com) * @version * @date V1.0 2016-2-26 * GNU Lesser General Public License. * See for details. * All above must be included in any redistribution * ****************************************************/ #define sensorPin A1 #define ledPin 13 void setup() { Serial.begin(115200); pinMode(ledPin,OUTPUT); } void loop() { int x=analogRead(sensorPin); Serial.println(x); if(x>500)digitalWrite(13,HIGH); else digitalWrite(13,LOW); delay(50); } Expected Results For any questions, advice or cool ideas to share, please visit the DFRobot Forum. https://www.dfrobot.com/wiki/index.php/Gravity:_Flexible_Piezo_Film_Vibration_Sensor_SKU:_SEN0209SEN0152 6-7-17