79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
const express = require('express')
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const socketio = require('socket.io')
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// const CronJob = require('cron').CronJob
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const sense = require('sense-hat-led').sync
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const app = express()
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const server = app.listen(3000, '0.0.0.0', () => console.log('server is running'))
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const io = socketio(server)
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app.use(express.static('public'))
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sense.setRotation(180)
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sense.lowLight = true
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// const job = new CronJob(
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// '0 * * * * *',
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// async () => {
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// // 测试 http://zhao 的连通性
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// },
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// null,
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// true
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// )
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const blue = [0, 0, 255]
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const leds = [
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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[0, 0, 0, 0, 0, 0, 0, 0],
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]
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read_all_leds()
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io.on('connection', (client) => {
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client.emit('leds', leds)
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client.on('action', ({ action, x, y }) => {
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console.log({ action, x, y })
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switch (action) {
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case 'on':
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sense.setPixel(Number(x), Number(y), blue)
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leds[y][x] = 1
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break
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case 'off':
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sense.setPixel(Number(x), Number(y), [0, 0, 0])
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leds[y][x] = 0
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break
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case 'hello':
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sense.flashMessage('HELLO', 1, blue)
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sense.clear()
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read_all_leds(0)
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break
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case 'flash':
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sense.clear([255, 255, 255])
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setTimeout(sense.clear, 100)
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read_all_leds(0)
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break
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case 'clear':
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sense.clear()
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read_all_leds(0)
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break
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case 'temp':
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read_all_leds()
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break
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default:
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break
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}
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io.emit('leds', leds)
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})
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})
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function read_all_leds(value = null) {
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const pixels = sense.getPixels()
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for (let y = 0; y < 8; y++) {
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for (let x = 0; x < 8; x++) {
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leds[y][x] = value !== null ? value : sense.getPixel(x, y)[2] == 0 ? 0 : 1
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}
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}
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}
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