This is a small node.js GPIO library for the Raspberry Pi using the fastest way to export values via C (http://codeandlife.com/2012/07/03/benchmarking-raspberry-pi-gpio-speed/).
npm install fastgpio
In your node.js file just require the library:
var fastgpio = require( "fastgpio" );
Now you can prepare your GPIO for output using:
After that you can set your GPIO to HIGH (turn on) anytime with:
Or you can set your GPIO to LOW (turn off) anytime with:
Remember: You must run your application as
root, to access the gpio memory areas!
The library only supports GPIOs as output, but in the fastest possible way from node.js. It uses the standard Raspberry Pi GPIO numbers.