53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
// npm module for Raspberri Pi GPIO
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var gpio = require('rpi-gpio');
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// Module for importing environment variables
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var dotenv = require('dotenv').config();
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// Set up GPIO 4 (pysical pin 7) as output, then call cycleAuger()
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gpio.setup(7, gpio.DIR_OUT, cycleAuger);
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// Turns the auger on (Pin 7 high)
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function augerOn(err) {
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if (err) throw err;
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gpio.write(7, true, function(err) {
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if (err) throw err;
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console.log('Auger turned on.');
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});
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}
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// Turns the auger off (pin 7 low)
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function augerOff(err) {
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if (err) throw err;
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gpio.write(7, false, function(err) {
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if (err) throw err;
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console.log('Auger turned off.');
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});
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}
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// Identical functions as above for debugging without gpio
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// function augerOff() {
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// console.log('Auger turned off.');
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// }
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// function augerOn() {
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// console.log('Auger turned on.');
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// }
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// Sleeps for any given milliseconds, call with await
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function sleep(ms) {
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return new Promise((resolve) => {
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setTimeout(resolve, ms);
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console.log(`Slept for ${ms}ms`);
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});
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}
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// Main function, turns the auger on, sleeps for the time given in environment variables, then turns the auger off, sleeps, repeats.
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async function cycleAuger(err) {
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if (err) throw err;
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// TODO: Detect file 'pause', 'reload', 'quit'
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augerOn();
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await sleep(process.env.ONTIME);
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augerOff();
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await sleep(process.env.OFFTIME);
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cycleAuger();
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} |