| 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 |  | ### available()
Examples |  |
    int val;

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

    void loop() {
      if( Serial.available() > 0) {
        val = Serial.read();
      }
      // Set the analog output pin 0 to the value in val
      analogWrite(0, val);
    }
Description |  | Returns the number of bytes available.
Syntax |  |
    serial.available()
Parameters |  |
serial |  | The hardware serial port, it can be Serial or Serial1
Returns |  | int
Usage |  | Application