Programacion

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

namespace Contador_digital_UART_01
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

byte[] buffer = { 0 };
        byte cnt = 0;

private void Form1_Load(object sender, EventArgs e)
        {
            serialPort1.Open();
            serialPort1.Write(buffer, 0, 1);
        }

private void btnMas_Click(object sender, EventArgs e)
        {
            if (cnt < 9)
                cnt++;
            lblContador.Text = cnt.ToString();
            buffer[0] = cnt;
            serialPort1.Write(buffer, 0, 1);
        }

private void btnMenos_Click(object sender, EventArgs e)
        {
            if (cnt > 0)
                cnt--;
            lblContador.Text = cnt.ToString();
            buffer[0] = cnt;
            serialPort1.Write(buffer, 0, 1);
        }

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            buffer[0] = 15;
            serialPort1.Write(buffer, 0, 1);
            serialPort1.Close();
        }
    }
}

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