Linuxduino 0.2.0

digitalWrite()

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

Syntax

digitalWrite(pin, value)

Parameters

pin:

The embedded board GPIO number. Must be a range from 0 to 256. If your embedded board GPIO goes over the available range contact me (jgarzagu at ucsd.edu).

value:

HIGH or LOW

Example

Javascript

const linuxduino = require('linuxduino');

// Test digitalWrite
(async() => {
  // Wait for wasm file
  await linuxduino.ready;

  var ledPin = 4; // Embedded board GPIO Number
  linuxduino.pinMode(ledPin, linuxduino.OUTPUT);
  while(1) {
    console.log("LED ON");
    linuxduino.digitalWrite(ledPin, linuxduino.HIGH);
    linuxduino.delay(1000); // Delay 1 sec
    console.log("LED OFF");
    linuxduino.digitalWrite(ledPin, linuxduino.LOW);
    linuxduino.delay(1000); // Delay 1 sec
  }
  return 0;
})();

Run it

sudo node digitalWrite.js

C++

#include "Linuxduino.h"

// Test digitalWrite
int main(void) {
    int ledPin = 4; // Embedded board GPIO Number
    pinMode(ledPin, OUTPUT);
    while(1) {
        printf("LED ON\n");
        digitalWrite(ledPin, HIGH);
        delay(1000); // Delay 1 sec
        printf("LED OFF\n");
        digitalWrite(ledPin, LOW);
        delay(1000); // Delay 1 sec
    }
    return 0;
}

Run it

g++ digitalWrite.cpp -o digitalWrite -llxduino
sudo ./digitalWrite

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