digitalWrite()

[Digital I/O]

説明

Write a HIGH or a LOW value to a digital pin.

If the pin has been configured as an OUTPUT with pinMode(), its voltage will be set to the corresponding value: 3.3V for HIGH, 0V (ground) for LOW.

Syntax

digitalWrite(pin, value)

Parameters

pin: the pin number
value: HIGH または LOW

Returns

none

Example Code

int ledPin = 13;                // LED connected to digital pin 13
 
void setup()
{
  pinMode(ledPin, OUTPUT);      // sets the digital pin as output
}
 
void loop()
{
  digitalWrite(ledPin, HIGH);   // sets the LED on
  delay(1000);                  // waits for a second
  digitalWrite(ledPin, LOW);    // sets the LED off
  delay(1000);                  // waits for a second
}

Sets pin 13 to HIGH, makes a one-second-long delay, and sets the pin back to LOW.

Note

Unlike Arduino, the analog input pins (referred to as A0, A1, etc) of 86Duino cannot be used as digital pins.

See also

• [Language] pinMode()
• [Language] digitalRead()

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