Hello everybody,
i was written this code to comunicate netduino 2 plus and smartphone.
My goal is to send with my app tha word "H" or "L".
Netduino 2 plus recive the data and change led's state onboard on or off.
(Remind...before to use app with netduino you must to do the pairing between module bluetooth and your smartphone.
Connect module bluetooth on netduino.More information on module bluetooth find on line).
netduino 2 plus code:
using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.Netduino;
using System.IO.Ports;
using System.Text;
namespace Bluetooth
{
public class Program
{
static SerialPort bt; //bt=bluetooth
static byte[] buffer = new byte[1024];
static int bufferOffSet = 0;
static OutputPort led;
public static void Main()
{
led = new OutputPort(Pins.ONBOARD_LED, false);
//initialize the serial port for com2
bt = new SerialPort(SerialPorts.COM2);//my netduino 2 plus comunicate with com2 pin D2(RX) and D3(TX)
bt.DataReceived += DataReceived;
//open the serial port so is possible to send and to recive data.
bt.Open();
Thread.Sleep(Timeout.Infinite);
}
private static void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
var byteRead = 0;
//check if there are the data
while (bt.BytesToRead > 0)
{
byteRead = bt.Read(buffer,bufferOffSet,buffer.Length-bufferOffSet);
bufferOffSet += byteRead;
}
bufferOffSet = 0;
//convert the data in string
var chars = Encoding.UTF8.GetChars(buffer, 0, byteRead);
var data = new string(chars);
if (data.Equals("H"))
{
led.Write(true);
//Debug.Print("led on");
}
else
{
if (data.Equals("L"))
{
led.Write(false);
//Debug.Print("led off");
}
}
}
private static void ExecuteCommand(string command)
{
throw new NotImplementedException();
}
}
}
the code for app on smartphone you can find on line.
Write appinventor bluetooth and there is the code to comunicate with bluetooth.
i hope that this code can to be helpful for you...
(sorry for my english.)
)
Answered
