Xwork's Blog

void DrawProgressBar(uint8_t Value, uint8_t XLocation, uint8_t YLocation){
    
    uint8_t Progress = map(Value , 1 , 100 , 0 , 20);
    
    lcd.setCursor(XLocation , YLocation);
    
    for (uint8_t i = 0; i < 20; i++)
    {
        if (i == 0)
        {
            if (Progress == 0)
                lcd.write(0);
            else
                lcd.write(1);
        }
            
        else if (i == 19)
        {
            if (Progress == 20)
                lcd.write(3);
            else
                lcd.write(2);
        }
        else
        {
            if (Progress <= i)
                lcd.write(4);
            else
                lcd.write(5);
        }
            
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace MessageSenderWindows
{
	public partial class FrmMain : Form
	{
		[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
		static extern IntPtr GetForegroundWindow();
		[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
		static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
		[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
		static extern int GetWindowTextLength(IntPtr hWnd); 

		private SerialPort Port = new SerialPort();

		private void ArduinoMessage(string Message)
		{
			try
			{
				Port.Write(Message);
			}
			catch (Exception e)
			{
				MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
			}

		}

		private string GetCaptionOfActiveWindow()
		{
			string strTitle = string.Empty;
			IntPtr handle = GetForegroundWindow();
			int intLength = GetWindowTextLength(handle) + 1;
			StringBuilder stringBuilder = new StringBuilder(intLength);
			if (GetWindowText(handle, stringBuilder, intLength) > 0)
			{
				strTitle = stringBuilder.ToString();
			}
			return strTitle;
			}

		public FrmMain()
		{
			InitializeComponent();
		}
		private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
		{
			SerialPort sp = (SerialPort)sender;
			string indata = sp.ReadExisting();
			if (indata.Contains("\r\n"))
			{
				ArduinoMessage(GetCaptionOfActiveWindow());

			}
		}

		private void FrmMain_Load(object sender, EventArgs e)
		{
			string[] Ports = SerialPort.GetPortNames();
			cboportname.Items.AddRange(Ports);
			cboportname.Text = "COM7";
			Port.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
		}

		private void BtnConnect_Click(object sender, EventArgs e)
		{
			try
			{
				if (Port.IsOpen == false)
				{
					Port.BaudRate = (int)(NUDSpeed.Value);
					Port.PortName = cboportname.Text;
					Port.Open();
				}
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
			}
		}

		private void BtnDis_Click(object sender, EventArgs e)
		{
			if (Port.IsOpen == true)
			{
				Port.Write("Se ha desconectado el cliente");
				Port.Close();
			}	
		}

		private void FrmMain_FormClosing(object sender, FormClosingEventArgs e)
		{
			if (Port.IsOpen == true)
			{
				Port.Close();
			}
		}
	}
}

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
//SCL - A5
//SDA - A4
LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display
char Texto[80];

void setup() {
  lcd.init();     
  lcd.backlight();
  Serial.begin(9600);
}
// la mayor parte las pantallas lcd vienen en tamaños de 16x2 o 20x4
// para que la funcion "funcione" en la version mas pequeña, debemos de hacer los calculos
// en  multiplos de 16
void MoveText(String Message){
	lcd.clear();
	if (Message.length() < 21)
		lcd.print(Message);
	if (Message.length() > 20 && Message.length() < 41)
	{
		lcd.setCursor(0 , 0);
		lcd.print(Message.substring(0 , 20));
		lcd.setCursor(0 , 1);
		lcd.print(Message.substring(20 , Message.length()));
	}
	if (Message.length() > 40 && Message.length() < 61)
	{
		lcd.setCursor(0 , 0);
		lcd.print(Message.substring(0 , 20));
		lcd.setCursor(0 , 1);
		lcd.print(Message.substring(20 , 40));
		lcd.setCursor(0 , 2);
		lcd.print(Message.substring(40 , Message.length()));
	}
	if (Message.length() > 60)
	{
		lcd.setcursor(0 , 0);
		lcd.print(Message.substring(0 , 20));
		lcd.setCursor(0 , 1);
		lcd.print(Message.substring(20 , 40));
		lcd.setCursor(0 , 2);
		lcd.print(Message.substring(40 , 60));
		lcd.setCursor(0 , 3);
		lcd.print(Message.substring(60 , Message.length()));
	}
	delay(1500); 
	Serial.println("\0\0");	
}

void loop() {
	int i = 0;
	if (Serial.available()) {
		while (Serial.available() > 0) {
			Texto[i] = Serial.read();
			i++;
		}
		Texto[i] = '\0';

	}
	MoveText(Texto);
}