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node-red-nodes/hardware/intel/mraa-gpio-pwm.js
2016-11-06 20:26:19 +00:00

36 lines
1010 B
JavaScript

module.exports = function(RED) {
var m = require('mraa');
function gpioPWM(n) {
RED.nodes.createNode(this, n);
this.pin = Number(n.pin);
this.period = Number(n.period) || 100;
var node = this;
node.p = new m.Pwm(node.pin);
//node.p.dir(m.DIR_OUT);
//node.p.mode(m.PIN_PWM);
node.p.enable(true);
node.p.period_ms(node.period);
node.on("input", function(msg) {
if (msg.payload) {
node.p.write(Number(msg.payload));
}
});
this.on('close', function() {
node.p.enable(false);
});
}
RED.nodes.registerType("mraa-gpio-pwm", gpioPWM);
RED.httpAdmin.get('/mraa-gpio/:id', RED.auth.needsPermission('mraa-gpio.read'), function(req,res) {
res.json(m.getPlatformType());
});
RED.httpAdmin.get('/mraa-version/:id', RED.auth.needsPermission('mraa-version.read'), function(req,res) {
res.json(m.getVersion());
});
}