Blink

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()
{
  Serial.begin(9600);
  pinMode(8, INPUT);
}

void loop()
{
  int sensorValue = digitalRead(8);
  Serial.println(sensorValue, DEC);
  delay(100);
}