Meadow BLE Console Sample (feat. 32-Feet.NET)

Program.cs

using InTheHand.Bluetooth;
using System;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        var discoveryTask = TestDeviceDiscovery();
        discoveryTask.Wait();
    }

    private static async Task<bool> TestDeviceDiscovery()
    {
        Console.WriteLine($"Discovering BLE devices (this may take a while)...");

        var discoveredDevices = await Bluetooth.ScanForDevicesAsync();

        if (discoveredDevices != null)
        {
            Console.WriteLine($"found {discoveredDevices?.Count} devices");

            BluetoothDevice meadow = null;

            foreach (var device in discoveredDevices)
            {
                if (device.Name == "PROJECT LAB") //"94B97E910E92"
                {
                    meadow = device;
                    Console.WriteLine($"  {device.Id} <-- {device.Name}");
                }
                else
                {
                    Console.WriteLine($"  {device.Id}");
                }
            }

            if (meadow != null)
            {
                Console.WriteLine($"Project Lab was found! Connecting...");
                await meadow.Gatt.ConnectAsync();

                Console.WriteLine($"Getting GATT service...");
                var service = await meadow.Gatt.GetPrimaryServiceAsync(BluetoothUuid.FromShortId(253));

                Console.WriteLine($"Getting characteristics...");
                var characteristics = await service.GetCharacteristicsAsync();

                Console.WriteLine($"{characteristics.Count} characteristics found.");

                var lastTemp = string.Empty;
                var lastClicks = -1;

                while (meadow.Gatt.IsConnected)
                {
                    foreach (var c in characteristics)
                    {
                        var value = await c.ReadValueAsync();

                        // we know the UUIDs of our characteristics
                        if (c.Uuid.ToString().EndsWith("aa"))
                        { // temp
                            var temp = Encoding.ASCII.GetString(value).Trim();
                            if (temp != lastTemp)
                            {
                                Console.WriteLine($"Temp is now {temp}");
                                lastTemp = temp;
                            }
                        }
                        else if (c.Uuid.ToString().EndsWith("bb"))
                        { // clicks
                            var clicks = BitConverter.ToInt16(value);
                            if (clicks != lastClicks)
                            {
                                Console.WriteLine($"Clicks is now {clicks}");
                                lastClicks = clicks;
                            }
                        }
                        else
                        {
                            Console.WriteLine($"  {c.Uuid}: {BitConverter.ToString(value)}");
                        }
                    }

                    await Task.Delay(1000); 
                }
            }
        }

        return discoveredDevices?.Count > 0;
    }
}