Index
 
  Reference for Wiring 1.0 (ALPHA) 0021+. 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()