jtaubensee/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            font-family: Tahoma, Geneva, sans-serif;
        }

        div {
            display: inline;
        }
    </style>
    <script>
      function updateStats(memuse) {
        document.getElementById('x').innerHTML = memuse.x;
        document.getElementById('y').innerHTML = memuse.y;
        document.getElementById('z').innerHTML = memuse.z;
      }

      var host = window.document.location.host.replace(/:.*/, '');
      var ws = new WebSocket('wss://cvrelaywus.servicebus.windows.net:443/$hc/public?sb-hc-action=connect');// &sb-hc-token={{token}}');
      ws.onmessage = function (event) {
        updateStats(JSON.parse(event.data));
      };
    </script>
</head>
<body>
    <strong>Accel</strong><br>
    X: <div id='x'></div><br>
    Y: <div id='y'></div><br>
    Z: <div id='z'></div><br>
</body>
</html>

## service.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Windows.Devices.Sensors;
using Microsoft.Azure.Relay;
using Newtonsoft.Json;

namespace SensorFeedServer
{
    class Program
    {
        private List<HybridConnectionStream> connections = new List<HybridConnectionStream>();
        private AccelerometerReading lastReading;

        static void Main(string[] args)
        {
            new Program().Run().GetAwaiter().GetResult();
        }

        async Task Run()
        {
            var accel = Accelerometer.GetDefault();
            accel.ReadingChanged += (Accel_ReadingChanged);

            Uri ns = new Uri("sb://cvrelaywus.servicebus.windows.net/public");
            TokenProvider tp = TokenProvider.CreateSharedAccessSignatureTokenProvider("listen", "...key...");


            var hcl = new HybridConnectionListener(ns, tp);
            await hcl.OpenAsync(CancellationToken.None);

            Console.WriteLine("ready");
            do
            {
                var cxn = await hcl.AcceptConnectionAsync();
                cxn.WriteMode = WriteMode.Text;
                Console.Write("+");
                this.connections.Add(cxn);

            } while (true);
        }

        private void Accel_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
        {
            var reading = args.Reading;

            if ( this.lastReading != null )
            {
                if (Math.Abs(lastReading.AccelerationX-reading.AccelerationX) < 0.1 &&
                    Math.Abs(lastReading.AccelerationY - reading.AccelerationY) < 0.1 &&
                    Math.Abs(lastReading.AccelerationZ - reading.AccelerationZ) < 0.1 )
                {
                    return;
                }
            }
            this.lastReading = args.Reading;
            Console.Write(".");
            var r = new
            {
                x = reading.AccelerationX,
                y = reading.AccelerationY,
                z = reading.AccelerationZ
            };
            var j = JsonConvert.SerializeObject(r);
            foreach (var cxn in new List<HybridConnectionStream>(connections))
            {
                try
                {
                    var u = Encoding.UTF8.GetBytes(j);
                    cxn.Write(u,0,u.Length);
                }
                catch (Exception)
                {
                    Console.Write("-");
                    connections.Remove(cxn);
                }
            }
        }
    }
}
	<!DOCTYPE html>
	<html>
	<head>
	<style>
	body {
	font-family: Tahoma, Geneva, sans-serif;
	}

	div {
	display: inline;
	}
	</style>
	<script>
	function updateStats(memuse) {
	document.getElementById('x').innerHTML = memuse.x;
	document.getElementById('y').innerHTML = memuse.y;
	document.getElementById('z').innerHTML = memuse.z;
	}

	var host = window.document.location.host.replace(/:.*/, '');
	var ws = new WebSocket('wss://cvrelaywus.servicebus.windows.net:443/$hc/public?sb-hc-action=connect');// &sb-hc-token={{token}}');
	ws.onmessage = function (event) {
	updateStats(JSON.parse(event.data));
	};
	</script>
	</head>
	<body>
	<strong>Accel</strong><br>
	X: <div id='x'></div><br>
	Y: <div id='y'></div><br>
	Z: <div id='z'></div><br>
	</body>
	</html>
	using System;
	using System.Collections.Generic;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;
	using Windows.Devices.Sensors;
	using Microsoft.Azure.Relay;
	using Newtonsoft.Json;

	namespace SensorFeedServer
	{
	class Program
	{
	private List<HybridConnectionStream> connections = new List<HybridConnectionStream>();
	private AccelerometerReading lastReading;

	static void Main(string[] args)
	{
	new Program().Run().GetAwaiter().GetResult();
	}

	async Task Run()
	{
	var accel = Accelerometer.GetDefault();
	accel.ReadingChanged += (Accel_ReadingChanged);

	Uri ns = new Uri("sb://cvrelaywus.servicebus.windows.net/public");
	TokenProvider tp = TokenProvider.CreateSharedAccessSignatureTokenProvider("listen", "...key...");


	var hcl = new HybridConnectionListener(ns, tp);
	await hcl.OpenAsync(CancellationToken.None);

	Console.WriteLine("ready");
	do
	{
	var cxn = await hcl.AcceptConnectionAsync();
	cxn.WriteMode = WriteMode.Text;
	Console.Write("+");
	this.connections.Add(cxn);

	} while (true);
	}

	private void Accel_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
	{
	var reading = args.Reading;

	if ( this.lastReading != null )
	{
	if (Math.Abs(lastReading.AccelerationX-reading.AccelerationX) < 0.1 &&
	Math.Abs(lastReading.AccelerationY - reading.AccelerationY) < 0.1 &&
	Math.Abs(lastReading.AccelerationZ - reading.AccelerationZ) < 0.1 )
	{
	return;
	}
	}
	this.lastReading = args.Reading;
	Console.Write(".");
	var r = new
	{
	x = reading.AccelerationX,
	y = reading.AccelerationY,
	z = reading.AccelerationZ
	};
	var j = JsonConvert.SerializeObject(r);
	foreach (var cxn in new List<HybridConnectionStream>(connections))
	{
	try
	{
	var u = Encoding.UTF8.GetBytes(j);
	cxn.Write(u,0,u.Length);
	}
	catch (Exception)
	{
	Console.Write("-");
	connections.Remove(cxn);
	}
	}
	}
	}
	}