Low level input/output

pinResetFast()

Write a LOW value to a digital pin.

// SYNTAX
pinResetFast(pin);

pinResetFast() takes one argument, pin: the number of the pin whose value you wish to set LOW.

pinResetFast() does not return anything.

// EXAMPLE USAGE
int LED = D7;              // LED connected to D7

void setup()
{
  pinMode(LED, OUTPUT);    // sets pin as output
}

void loop()
{
  pinSetFast(LED);           // set the LED on
  delay(500);
  pinResetFast(LED);       // set the LED off
  delay(500);
}