tothandras/ambient.js

## ambient.js
'use strict'

const ambientlib = require('ambient-attx4')

function ambientSensor (port) {
  return new Promise((resolve, reject) => {
    const ambient = ambientlib.use(port)

    ambient.on('ready', () => {
      console.log('connected to ambient module')
      resolve(ambient)
    })

    ambient.on('error', (err) => {
      console.error('error connecting to ambient module', err)
      reject(err)
    })
  })
}

module.exports = ambientSensor

## server.js
'use strict'

const tessel = require('tessel')
const http = require('http')
const ws = require('nodejs-websocket')
const ambientSensor = require('./ambient')(tessel.port.B)

const sockets = new Set()
const measurements = []
ambientSensor.then((sensor) => {
  setInterval(() => {
    sensor.getLightLevel((err, lightlevel) => {
      if (err) {
        return console.error(err)
      }
      sockets.forEach((socket) => socket.send(JSON.stringify({ lightlevel })))
    })
  }, 100)
})

const server = http.createServer((request, response) => {
  response.writeHead(200, { 'Content-Type': 'text/html' })
  response.end(`
    <!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>Andras's Tessel</title>
        <style>
          html {
            background: #000;
          }

          html, body {
            height: 100%;
            margin: 0;
          }

          body {
            display: flex;
            align-items: center;
          }

          #current {
            text-align: center;
            width: 100%;
            margin: 0;
            padding: 0;
          }
        </style>
      </head>
      <body>
        <h1 id="current"></h1>
        <script>
          var ws = new WebSocket('ws://' + location.host + ':81')
          var body = document.body
          var current = document.getElementById('current')
          ws.onmessage = function onmessage (message) {
            try {
              var data = JSON.parse(message.data)
              var lightlevel = data.lightlevel
              current.innerHTML = lightlevel
              body.style.background = 'rgba(255, 255, 255,' + lightlevel * 10 + ')'
            } catch (ex) {
              console.error(ex)
            }
          }
        </script>
      </body>
    </html>
  `)
})

const wsServer = ws.createServer((socket) => {
  sockets.add(socket)
  socket.on('close', () => sockets.delete(socket))
})

server.listen(80, () => {
  console.log('Server is listening on http://192.168.1.101/')
})

wsServer.listen(81)
	'use strict'

	const ambientlib = require('ambient-attx4')

	function ambientSensor (port) {
	return new Promise((resolve, reject) => {
	const ambient = ambientlib.use(port)

	ambient.on('ready', () => {
	console.log('connected to ambient module')
	resolve(ambient)
	})

	ambient.on('error', (err) => {
	console.error('error connecting to ambient module', err)
	reject(err)
	})
	})
	}

	module.exports = ambientSensor
	'use strict'

	const tessel = require('tessel')
	const http = require('http')
	const ws = require('nodejs-websocket')
	const ambientSensor = require('./ambient')(tessel.port.B)

	const sockets = new Set()
	const measurements = []
	ambientSensor.then((sensor) => {
	setInterval(() => {
	sensor.getLightLevel((err, lightlevel) => {
	if (err) {
	return console.error(err)
	}
	sockets.forEach((socket) => socket.send(JSON.stringify({ lightlevel })))
	})
	}, 100)
	})

	const server = http.createServer((request, response) => {
	response.writeHead(200, { 'Content-Type': 'text/html' })
	response.end(`
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Andras's Tessel</title>
	<style>
	html {
	background: #000;
	}

	html, body {
	height: 100%;
	margin: 0;
	}

	body {
	display: flex;
	align-items: center;
	}

	#current {
	text-align: center;
	width: 100%;
	margin: 0;
	padding: 0;
	}
	</style>
	</head>
	<body>
	<h1 id="current"></h1>
	<script>
	var ws = new WebSocket('ws://' + location.host + ':81')
	var body = document.body
	var current = document.getElementById('current')
	ws.onmessage = function onmessage (message) {
	try {
	var data = JSON.parse(message.data)
	var lightlevel = data.lightlevel
	current.innerHTML = lightlevel
	body.style.background = 'rgba(255, 255, 255,' + lightlevel * 10 + ')'
	} catch (ex) {
	console.error(ex)
	}
	}
	</script>
	</body>
	</html>
	`)
	})

	const wsServer = ws.createServer((socket) => {
	sockets.add(socket)
	socket.on('close', () => sockets.delete(socket))
	})

	server.listen(80, () => {
	console.log('Server is listening on http://192.168.1.101/')
	})

	wsServer.listen(81)