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.

DigitalReadSerial Reads a digital input pin 8, prints the result to the serial monitor Click on the serial monitor button to open it.

void setup()
  pinMode(8, INPUT);

void loop()
  int sensorValue = digitalRead(8);
  Serial.println(sensorValue, DEC);