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

portRead()
Examples 
int inport = 0;
int val = 0;

void setup() {
  portMode(inport, INPUT); 
  Serial.begin(9600);
}

void loop() {
  val = portRead(inport);
  Serial.print(val);
}
Description The portRead() method reads the value of the digital input port specified.
Syntax 
portRead(port)
Parameters
port Port number to read from
Returns int
Usage Application
Related INPUT
OUTPUT
portWrite()
portMode()
Updated on November 01, 2009 11:33:41pm PST

Creative Commons License