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Reference for Wiring version 0024+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.

Name | ### digitalRead()
Examples |
    int inpin = 0;
    int outpin = 1;
    int val = 0;

    void setup() {
      pinMode(inpin, INPUT);
      pinMode(outpin, OUTPUT);
    }

    void loop() {
      val = digitalRead(inpin);
      if(val == HIGH)
      {
        digitalWrite(outpin, HIGH);
      } else {
        digitalWrite(outpin, LOW);
      }
    }
Description | The digitalRead() method reads the value of a digital input pin.
Syntax |
    digitalRead(pin)
Parameters |
pin | int
Returns | int
Usage | Application
Related | INPUT OUTPUT HIGH LOW digitalWrite() pinMode()

Updated on November 01, 2009 11:25:40pm PST