152 lines
4.6 KiB
JavaScript
152 lines
4.6 KiB
JavaScript
require('dotenv').config() // 读取系统环境变量
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// HTTP 请求路由
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const app = require('express')()
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app.get('/', (req, res) => res.sendStatus(200))
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// 服务器启动
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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 server = app.listen(port, host, () => {
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console.log(`rpi sense hat server is running at http://${host}:${port}`)
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})
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// Sense HAT 全局数据 及 初始化
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const R = [255, 0, 0]
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const G = [0, 255, 0]
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const B = [0, 0, 255]
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const Y = [255, 255, 0]
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const P = [255, 0, 255]
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const C = [0, 255, 255]
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const O = [255, 255, 255]
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const _ = [0, 0, 0]
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const sensehat = {
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led: {
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...require('sense-hat-led').sync,
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/*
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sleep(n) 暂停n秒
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clear() 清除所有
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clear(rgb) or clear([r,g,b]) 填充颜色
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setPixel(x,y,r,g,b) or setPixel(x,y,rgb) 设置一个点
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getPixel(x,y) 返回 [r,g,b] 获取一个点
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setPixels([[r,g,b]*64])
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getPixels() -> [[r,g,b]*64]
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flipH(redraw=true) 水平反转
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flipV(redraw=true) 垂直反转
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setRotation(r, redraw=true) 设置旋转，r初始为0，r只能设置为0/90/180/270
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getter rotation
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getter and setter lowLight 默认为true
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*/
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get pixels() { return sensehat.led.getPixels() },
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},
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}
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sensehat.led.clear()
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sensehat.led.setPixels([
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R, O, O, O, O, O, O, O,
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O, _, _, _, _, _, _, O,
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O, _, _, _, _, _, _, O,
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O, _, _, _, _, _, _, O,
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O, _, _, _, _, _, _, O,
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O, _, _, _, _, _, _, O,
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O, _, _, _, _, _, _, O,
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O, O, O, O, O, O, O, O,
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])
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sensehat.led.lowLight = true
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sensehat.led.sleep(2)
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sensehat.led.lowLight = false
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console.log(sensehat.led.rotation)
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console.log(sensehat.led.lowLight)
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// 1| RPi Sense HAT API: 8001 | showMessage: [Function: showMessageSync],
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// 1| RPi Sense HAT API: 8001 | flashMessage: [Function: flashMessageSync],
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// 1| RPi Sense HAT API: 8001 | showLetter: [Function: showLetterSync],
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// 1| RPi Sense HAT API: 8001 | loadImage: [Function: loadImageSync],
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// 1| RPi Sense HAT API: 8001 | rotation: [Getter / Setter],
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// 1| RPi Sense HAT API: 8001 | gamma: [Getter / Setter],
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// 1| RPi Sense HAT API: 8001 | gammaReset: [Function: gammaReset],
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// 1| RPi Sense HAT API: 8001 | lowLight: [Getter / Setter]
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// 1 | RPi Sense HAT API: 8001 | }
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// socketio 服务
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const io = require('socket.io')(server, { cors: { origin: '*' } })
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io.on('connection', (client) => {
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console.log(`client conncted: ${client.id}`)
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client.on('operation', ({ action }) => {
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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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sensehat.led.clear(O)
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setTimeout(sensehat.led.clear, 200)
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break
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case 'clear':
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sensehat.led.clear()
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break
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default:
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break
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}
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})
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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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