Android Question ble problem

Are you using the latest version of BLE2 (1.16)?

No, BLE2 (1.15)

1.15 is also fine.

Can you post the code that prints the characteristics?

Sub DataAvailable (Service As String, Characteristics As Map)
pbReadData.Visible = False
' clv.Add(CreateServiceItem(Service), 30dip, "")
' For Each id As String In Characteristics.Keys
' clv.Add(CreateCharacteristicItem(id, Characteristics.Get(id)), 40dip, "")
' Next
'''''''02/02/2016
Dim bc As ByteConverter
Dim data As String

' Log($"Time: $Time{DateTime.Now}"$)
clv.Add(CreateServiceItem(Service), 30dip, "")
For Each id As String In Characteristics.Keys
clv.Add(CreateCharacteristicItem(id, Characteristics.Get(id)), 40dip, "")
data = bc.HexFromBytes( Characteristics.Get(id) )
Log("id: " & id & "->" & data)
Next
End Sub

Please use [code]code here...[/code] tags when posting code.

All characteristics should be included in this map. Even unreadable characteristics. It looks like this characteristic is not found.

Try to download a BLE scanner app from Google Play and see whether it finds this characteristic.

You can still call SetNotify to try to create a notification for this char. However it will probably not work.

I use a BLE scanner app, and the UUID: 00002A37-0000..... properties: NOYIFY and Value: Notification or indications disabled.

It's possibol to enabled it with code?

Thank you

Umberto

Have you tried to enable notifications with manager.SetNotify?

No, because i don't understand where positioning the manager.SetNottify in starter.bas

Call ReadData and then set the notification in the DataAvailable event (do it once only).

it's possible to have an example of it?

You need to call Manager.ReadData with the correct service.

occurse this error:
LogCat connected to: 0123456789ABCDEF
--------- beginning of /dev/log/system
--------- beginning of /dev/log/main
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
Found: Geonaute BLE HRM
ID: D0:5F:B8:10:B9:CC
RSSI: -63
AdvData: (MyMap) {1=[B@431a13e8, 2=[B@431a1400, 9=[B@431a1418}
Discovering services.
Connected
setting notification
Error occurred on line: 77 (Starter)
java.lang.RuntimeException: Characterisic not found: 00002a37-0000-1000-8000-00805f9b34fb
at anywheresoftware.b4a.objects.BleManager2.getChar(BleManager2.java:240)
at anywheresoftware.b4a.objects.BleManager2.SetNotify(BleManager2.java:213)
at b4a.example.starter._manager_dataavailable(starter.java:218)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:697)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:336)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.BA$2.run(BA.java:328)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5340)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
java.lang.RuntimeException: java.net.SocketException: Socket closed
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:165)
at anywheresoftware.b4a.BA$2.run(BA.java:328)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5340)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.net.SocketException: Socket closed
at libcore.io.Posix.sendtoBytes(Native Method)
at libcore.io.Posix.sendto(Posix.java:156)
at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:177)
at libcore.io.IoBridge.sendto(IoBridge.java:510)
at java.net.PlainSocketImpl.write(PlainSocketImpl.java:527)
at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:46)
at java.net.PlainSocketImpl$PlainSocketOutputStream.write(PlainSocketImpl.java:269)
at java.io.BufferedOutputStream.flushInternal(BufferedOutputStream.java:185)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:85)
at anywheresoftware.b4a.shell.ShellConnector.sendControlMessage(ShellConnector.java:62)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:294)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
... 10 more

Are you sure that you are reading from the correct service? Aren't there any other services available?

What is the service udid?

I've ordered a heart rate monitor. It will take several weeks for it to arrive. Once it arrives I will post B4A and B4i examples.

Thanks, Erel