33 lines
690 B
JavaScript
33 lines
690 B
JavaScript
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'use strict'
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const Gpio = require('onoff').Gpio
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// **********************************
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class Interrupt {
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// bus is i2c-bus bus object
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constructor(pin_number, processor, opts = {}) {
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let dtimeout = opts.debounceTimeout ? opts.debounceTimeout : 200
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this.pin = new Gpio(pin_number, 'in', 'falling', { debounceTimeout: dtimeout })
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this.processor = processor
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}
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init() {
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this.addListener(this.processor)
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process.on('SIGINT', function () {
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this.pin.unexport();
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})
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}
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addListener(processor) {
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this.pin.watch((err, value) => {
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if (err) { return Promise.reject(err) }
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return processor
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});
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}
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}
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module.exports.Interrupt = Interrupt
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