Programacion

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Control_motor_PAP_UART_01
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

bool giro = false;
        byte cnt = 0;
        byte[] buffer = { 0 };

private void Form1_Load(object sender, EventArgs e)
        {
            serialPort1.Open();
        }

private void btnIzquierda_Click(object sender, EventArgs e)
        {
            giro = false;
            timer1.Enabled = true;
        }

private void btnDetener_Click(object sender, EventArgs e)
        {
            timer1.Enabled = false;
        }

private void btnDerecha_Click(object sender, EventArgs e)
        {
            giro = true;
            timer1.Enabled = true;
        }

private void nudVelocidad_ValueChanged(object sender, EventArgs e)
        {
            timer1.Interval = (int)nudVelocidad.Value;
        }

private void timer1_Tick(object sender, EventArgs e)
        {
            if (giro)
                buffer[0] = (byte)(1 << cnt);
            else
                buffer[0] = (byte)(8 >> cnt);
            serialPort1.Write(buffer,0,1);
            if (cnt == 3)
                cnt = 0;
            else
                cnt++;
        }

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            buffer[0] = 0;
            serialPort1.Write(buffer, 0, 1);
            serialPort1.Close();
        }
    }
}

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