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  

analogWrite()

   
Examples   
int outpin = 0; 
int val = 0; 
 
void setup() { 
 
} 
 
void loop() { 
  analogWrite(outpin, val);  // sets the value of analog pin 0 
  val = (val + 10) % 1023;   // increment value and keep it in 
                             // the 0-1023 range. 
}

Description   The analogWrite() method sets the value of an analog output (PWM) pin. Possible values range from 0 to 1023, where 0 is 0 volts and 1023 is 5 volts. The analogWrite() command works on PWM (analog output) pins 0-5 (in the Wiring I/O board as a separate section for easiness). It is also possible to use the digital pin numbering 37, 36, 35, 31, 30 and 29 respectively.
   
Syntax   
analogWrite(pin,value)
   
Parameters  
pin   int: The PWM output pin number

value   int: a value in the range 0-1023

   
Returns   None
   
Usage   Application
   
Related   analogRead()