126 lines
3.8 KiB
JavaScript
126 lines
3.8 KiB
JavaScript
require('dotenv').config()
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const port = process.env.PORT || 3000
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const host = process.env.HOST || 'localhost'
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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 request = require('request')
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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(port, host, () => console.log(`rpi sense hat server is running at port http://${host}:${port}`))
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const io = socketio(server)
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app.get('/', (req, res) => {
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res.status(200).send('RPi Sense HAT API is ON :)')
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})
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// Sense HAT 初始化
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sense.lowLight = true
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sense.setRotation(180)
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sense.clear()
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io.on('connection', (client) => {
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console.log(`client conncted: ${client.id}`)
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client.emit('message', `hello, ${client.id}`)
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})
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// const color_red = [255, 0, 0]
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// const color_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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// io.emit('leds', leds)
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// let zhao_server_errors = 0
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// const job = new CronJob(
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// '*/3 * * * * *',
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// async () => {
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// // 测试 http://zhao 的连通性
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// request('http://zhao', (err, res, body) => {
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// if (res.statusCode != 200) {
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// zhao_server_errors++
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// }
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// if (zhao_server_errors > 0) {
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// for (let i = 0; i < zhao_server_errors; i++) {
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// const x = i % 8
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// const y = Math.floor(i / 8)
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// sense.setPixel(x, y, color_red)
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// }
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// } else {
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// let color = sense.getPixel(0, 0)
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// let [r, g, b] = color
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// sense.setPixel(0, 0, [r, g > 0 ? 0 : 255, b])
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// }
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// })
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// },
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// null,
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// true
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// )
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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), color_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, color_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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// get_rpis_info()
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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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// async function get_rpis_info() {
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// const rpis = []
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// request('http://zhao:4000', (err, res, body) => {
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// if (res.statusCode == 200) rpis.push(JSON.parse(body))
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// request('http://pi:4000', (err, res, body) => {
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// if (res.statusCode == 200) rpis.push(JSON.parse(body))
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// io.emit('data', rpis)
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// })
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// })
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// }
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