Raspberry Pi Forums

Code: Select all

using System;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Widget;
using Android.Bluetooth;
using Java.Util;
namespace RasPi
{
        [Activity(Label = "VerbindenActivity")]
        public class VerbindenActivity : Activity
        {
            BluetoothDevice device;
            BluetoothAdapter adapter;
            Button btnBluetooth;
            Button btnTest;
            BluetoothSocket socket;
            protected override void OnCreate(Bundle savedInstanceState)
            {
                base.OnCreate(savedInstanceState);
                //Layout laden
                SetContentView(Resource.Layout.Verbinden);
                btnBluetooth = FindViewById<Button>(Resource.Id.btnBluetooth);
                btnBluetooth.Click += Bluetooth_Click;
                btnTest = FindViewById<Button>(Resource.Id.btnTest);
                btnTest.Click += BtnTest_Click;
        }
            async void Bluetooth_Click(object sender, EventArgs e)
            {
                //Alert für die verschienden Fälle
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.SetTitle("Status");
                builder.SetCancelable(false);
                builder.SetPositiveButton("Ok", (object sendersender, DialogClickEventArgs ee) =>
                {
                    //Nichts machen
                });
                try
                {
                    adapter = BluetoothAdapter.DefaultAdapter;
                    if (!adapter.IsEnabled)
                    {
                        builder.SetMessage("Bluetooth einschalten!");
                        AlertDialog statusAlert = builder.Create();
                        statusAlert.Show();
                    }
                    else if (adapter.IsEnabled)
                    {
                        device = (from bd in adapter.BondedDevices
                                  where bd.Name == "raspberrypi"
                                  select bd).FirstOrDefault();
                        if (device == null)
                        {
                            builder.SetMessage("Raspberry Pi wurde nicht gefunden.");
                            AlertDialog statusAlert = builder.Create();
                            statusAlert.Show();
                        }
                        else
                        {
                            var socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString("00000000-0000-1000-8000-00805F9B34FB"));
                            await socket.ConnectAsync();
                            btnBluetooth.Enabled = false;
                            builder.SetMessage("Verbindung erfolgreich");
                            AlertDialog statusAlert = builder.Create();
                            statusAlert.Show();
                        }
                    }
                }
                catch (Exception ex)
                {
                    Toast.MakeText(this, ex.Message, ToastLength.Short);
                }
             }
        void BtnTest_Click(object sender, EventArgs e)
        {
            TestFunction("1");
        }
        private async void TestFunction(string strDirection)
        {
            try
            {
                byte[] buffer = Encoding.ASCII.GetBytes(strDirection);
                await socket.OutputStream.WriteAsync(buffer, 0, buffer.Length);
            }
            catch (Exception ex)
            {
                Toast.MakeText(this, ex.Message, ToastLength.Short);
            }
        }
    }
}

Code: Select all

import bluetooth
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)
GPIO.setup(11, GPIO.OUT)
GPIO.setwarnings(False)

server_socket = bluetooth.BluetoothSocket(bluetooth.RFCOMM)

port = 1
server_socket.bind(("", bluetooth.PORT_ANY))
server_socket.listen(1)

client_socket, address = server_socket.accept()
print ("Verbunden ", address)
try:
    while 1:
        data = client_socket.recv(1024)
        print ("Empfangen: %s" % data)
        if (data == b'0'):
            GPIO.output(11, 0)
        if (data == b'1'):
            GPIO.output(11, 1)

finally:
    print("Cleaning Up!")
    GPIO.cleanup()
    client_socket.close()
    server_socket.close()