Infrared ranger (distance/presence): SHARP GP2D12/120

This example is for Wiring version 1.0 build 0100+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Piezo film sensor by BARRAGAN

A Piezo film sensor can be used to measure a wide variety of phenomena, including pulses, vibration, pressure etc. This example reads values from a piezo film sensor connected to the analog input pin 0. The value read from the sensor is proportional to the amount of vibration that reaches the sensor's surface. The value read is printed to the serial monitor

int sensorValue;

void setup()
  Serial.begin(9600);  // sets the serial port to 9600

void loop()
  sensorValue = analogRead(0);       // read analog input pin 0
  Serial.println(sensorValue, DEC);  // prints the value read
  delay(100);                        // wait 100ms for next reading