Reference for Wiring 1.0 (ALPHA) 0019+. If you have a previous version, use the reference included with your software.
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Name
pinMode()
Examples
int inpin = 0;
int outpin = 1;
int val = 0;
void setup() {
pinMode(inpin, INPUT);
pinMode(outpin, OUTPUT);
}
void loop() {
val = digitalRead(inpin, HIGH);
if(val == HIGH)
{
digitalWrite(outpin, HIGH);
} else {
digitalWrite(outpin, LOW);
}
}
Description
The pinMode() method sets the specified digital I/O pin as INPUT or OUTPUT. A digital or binary I/O pin can have two possible values: HIGH or LOW. Is it possible to set or read the value of a digital I/O pin by using the digitalWrite() and digitalRead() methods.