gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace Bulb
{
    public class Controller
    {
        private UdpClient _client;
        private int _brightness;
        private byte _color;

        public Controller(string ip, int port = 8899)
        {
            _client = new UdpClient(ip, port);
            TurnOn();
            _brightness = 0;
            SetBrightness(9);
            _color = 255;
            SetColor(0);
        }


        public void TurnOn()
        {
            Send(On);
        }

        public void TurnOff()
        {
            Send(Off);
        }

        public void SetBrightness(int i)
        {
            if(i < 0 || i>9) return;
            var f = i < _brightness ? Dim : new Action(Brighten);
            while (_brightness != i)
            {
                f();
            }
        }

        public void Brighten()
        {
            Send(BrightnessUp);
            if (_brightness < 10)
                _brightness++;
        }

        public void Dim()
        {
            Send(BrightnessDown);
            if (_brightness > 0)
                _brightness--;
        }

        public void SetColor(byte i)
        {
            var copy = (byte[])Color.Clone();
            copy[1] = i;
            Send(copy);
            _color = i;
        }

        private void Send(byte[] cmd)
        {
            _client.Send(cmd, cmd.Length);
            Thread.Sleep(100);
        }

        private static readonly byte[] On = { 0x22, 0x0, 0x55 };
        private static readonly byte[] Off = { 0x21, 0x0, 0x55 };
        private static readonly byte[] Color = { 0x20, 0x00, 0x55 };
        private static readonly byte[] BrightnessUp = { 0x23, 0x00, 0x55 };
        private static readonly byte[] BrightnessDown = { 0x24, 0x00, 0x55 };
    }
}