30 lines
563 B
JavaScript
30 lines
563 B
JavaScript
"use strict";
|
|
|
|
const Gpio = require('../onoff').Gpio;
|
|
const assert = require('assert');
|
|
const button = new Gpio(4, 'in', 'rising', {
|
|
debounceTimeout : 10
|
|
});
|
|
let count = 0;
|
|
|
|
assert(button.direction() === 'in');
|
|
assert(button.edge() === 'rising');
|
|
|
|
console.info('Please press button connected to GPIO4 5 times...');
|
|
|
|
button.watch((err, value) => {
|
|
if (err) {
|
|
throw err;
|
|
}
|
|
|
|
count += 1;
|
|
|
|
console.log('button pressed ' + count + ' times, value was ' + value);
|
|
|
|
if (count === 5) {
|
|
button.unexport();
|
|
console.log('ok - ' + __filename);
|
|
}
|
|
});
|
|
|