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.

Class

Serial

Name

read()

Examples
int val;

void setup() {
  Serial1.begin(9600);
}

void loop() {
  // Set the analog output pin 0 to the value in val
  if(Serial1.available() > 0) {
    val = Serial1.read();
  }
  analogWrite(0, val);  
}
Description Returns a number between 0 and 255 for the next byte that's waiting in the buffer. Returns -1 if there is no byte, although this should be avoided by first checking available() to see if data is available.
Syntax
serial.read()
Parameters
serial The serial port, it can be Serial or Serial1
Returns int
Usage Application
Updated on November 02, 2009 12:11:43am PST

Creative Commons License