| Index

| Reference for Wiring 1.0 (ALPHA) 0017+. 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 |  | ### read()
Examples |  |
    int val;

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

    void loop() {
      // Set the analog output pin 0 to the value in val
      if(Serial.available() > 0) {
        val = Serial.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 hardware serial port, it can be Serial or Serial1
Returns |  | int
Usage |  | Application