Android Question BLE2 library problem

[jefflynn1974]

Hi,
I'm trying to migrate one of my projects from the old BleExtEx library to BLE2. My problem is that I get the following error on every write attempt.

** Service (starter) Create **
** Service (starter) Start **
State: 12
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
Found: null, 00:1E:C0:27:4B:69, RSSI = -63, (MyMap) {1=[B@785da70, 7=[B@1f2c51e9}
Discovering services.
Connected
PrivServ[3]: 0000180f-0000-1000-8000-00805f9b34fb
Error occurred on line: 41 (Starter)
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.keywords.Common.CallSubDebug(Common.java:852)
at b4a.example.main._writedata_click(main.java:625)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:702)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:336)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:157)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:153)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:78)
at android.view.View.performClick(View.java:5217)
at android.view.View$PerformClick.run(View.java:20983)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6117)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:341)
at anywheresoftware.b4a.debug.Debug.CallSubNew(Debug.java:287)
... 25 more
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:323)
... 26 more
Caused by: java.lang.RuntimeException: Error writing data to: 00002a19-0000-1000-8000-00805f9b34fb
at anywheresoftware.b4a.objects.BleManager2.WriteData(BleManager2.java:266)
at b4a.example.starter._writedata(starter.java:189)
... 29 more
** Activity (main) Pause, UserClosed = true **

The line 41 is the write command.

manager.WriteData(PrivServ,CharWrite,data)

 

[JordiCP]

Are you sure the "CharWrite" characteristic you are using is writable?
If the discovered service has more than one Characteristic, you must check their properties to get which is/are the writable one(s)

 

[jefflynn1974]

You are right, I was trying to write the wrong charasteristic.