Raspi LED is part of the Raspi.js suite that provides access to the onboard status LED.
If you have a bug report, feature request, or wish to contribute code, please be sure to check out the Contributing Guide.
First, be sure that you have installed raspi.
Install with NPM:
npm install raspi-led
var raspi = require('raspi');
var led = require('raspi-led');
raspi.init(function() {
var statusLed = new led.LED();
// Flash the LED twice a second
setInterval(function() {
if (statusLed.read() == led.ON) {
statusLed.write(led.OFF); // Turn off the status LED
} else {
statusLed.write(led.ON); // Turn on the status LED
}
}, 500);
});
Constant | Description |
---|---|
OFF | Status value indicating the LED is off, one of the two possible return values from reads and arguments to writes |
ON | Status value indicating the LED is on, one of the two possible return values from reads and arguments to writes |
Instantiates a new status LED instance.
Arguments: None
Reads the current status of the LED.
Arguments: None
Returns: ON or OFF
Turns the LED on or off.
Arguments:
Argument | Type | Description |
---|---|---|
value | ON | OFF |
The LED status to set |
Returns: None
The MIT License (MIT)
Copyright (c) 2015 Bryan Hughes bryan@theoreticalideations.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.