blutooth serial communcation with nadroid device

Question

blutooth serial communcation with android device and blutooth module in xmarine c#

Bhuvanesh Mohankumar · Answer

Can you try this code, using System; using System.Linq; using System.IO; using Android.App; using Android.Content; using Android.Runtime; using Android.Views; using Android.Widget; using Android.OS; using Android.Bluetooth; //... public class MainActivity:Activity { private BluetoothSocketsocket; protected override void OnCreate(Bundlebundle) { base .OnCreate(bundle); SetContentView(Resource.Layout.Main); Buttonbutton=FindViewById (Resource.Id.MyButton); EditTexttext=FindViewById (Resource.Id.editText); button.Click+= delegate { BluetoothAdapteradapter=BluetoothAdapter.DefaultAdapter; Actionfinish= new Action(async delegate { if (socket== null ) { BluetoothDevicedevice=(frombd in adapter.BondedDeviceswherebd.Name== "BOLUTEK" selectbd).FirstOrDefault(); if (device== null ) { AndroidMethods.message( "Error" , "BOLUTEKdevicenotfound.PleasemakesureyouarepairedwiththeBOLUTEKdevice." , "OK" , this ); return ; } socket=device.CreateRfcommSocketToServiceRecord(Java.Util.UUID.FromString( "00001101-0000-1000-8000-00805f9b34fb" )); } if (!socket.IsConnected) awaitsocket.ConnectAsync(); string outString=text.Text+ "" ; string wakeString= "	" ; byte []output=charsToBytes(outString.ToCharArray()); byte []wakeUp=charsToBytes(wakeString.ToCharArray()); awaitsocket.OutputStream.WriteAsync(wakeUp,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(wakeUp,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(wakeUp,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(output,0,output.Length); byte []output2=stringToBytes(outString); byte []wakeUp2=stringToBytes(wakeString); awaitsocket.OutputStream.WriteAsync(wakeUp2,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(wakeUp2,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(wakeUp2,0,wakeUp.Length); awaitsocket.OutputStream.WriteAsync(output2,0,output.Length); }); if (socket!= null ) finish(); else if (adapter== null ) { AndroidMethods.message( "Error" , "Nobluetoothadapterfound." , "OK" , this ); return ; } else if (!adapter.IsEnabled) { DialogBuilder.createConfirmDialog( this , "Error" , "Bluetoothadapterisnotenabled.Wouldyouliketoenableitnow?" , "No" , "Yes" , delegate { adapter.Enable(); finish(); }); } else finish(); }; } public static byte []stringToBytes( string value) { byte []bytes= new byte [value.Length* sizeof ( char )]; System.Buffer.BlockCopy(value.ToCharArray(),0,bytes,0,bytes.Length); return bytes; } public static string bytesToString( byte []bytes) { char []chars= new char [bytes.Length/ sizeof ( char )]; System.Buffer.BlockCopy(bytes,0,chars,0,bytes.Length); return new string (chars); } public static byte []charsToBytes( char []chars) { int length=chars.Length; byte []returnVal= new byte [length]; for ( int x=0;x returnVal[x]=( byte )chars[x]; return returnVal; } } Mark as answer, if helpful.

Bhuvanesh Mohankumar · Answer

Are you using Xamiran?