node rpi gpio control

Easy to use node module that controls the Raspberry pi GPIO via the file system.

Installation

npm install node-rpi-gpio-control --save

Useage

NOTE: the program using this module must be running with superuser privileges to interact with the file system GPIO.

let gpio = require('node-rpi-gpio-control');

// sets the values for pin HIGH and LOW.

const PIN_ON = 0;
const PIN_OFF = 1;

// exports the pin and sets the mode to write
gpio.setup(1, gpio.modes.write, function() {
    gpio.write(1, PIN_OFF, function() {
    });
});

// unexports the pin
gpio.teardown(1, function() {
});



// exports the pin and sets the mode to read
gpio.setup(2, gpio.modes.read, function() {
    gpio.read(2, function(err, data) {
		if (err) throw err;
    	console.log(data);
    });
});

// unexports the pin
gpio.teardown(2, function() {
});

Methods

|Method|Description| |---|---| |setup(pin, mode, cb)| Sets up the pin up for use and sets the mode on the pin. | |teardown(pin, cb)| Closes the pin so it is not in useany more. | |write(pin, value, cb)| Writes a value to the pin. | |read(pin, cb)| Reads the value of a pin. cb(err, data) |

Properties

| Property |Description| |---|---| |modes| Provides access to the pin modes. gpio.modes.write & gpio.modes.read |