Open storm1er opened 7 years ago
Hi
I'm trying to send time throung bluetooth to my rpi. but i can't get evothings.ble.writeCharacteristic to wrok for unknown reason :/
evothings.ble.writeCharacteristic
app.js :
ui.append('Time is being updated ...'); device.writeCharacteristic( app.SYSTEMINFORMATIONSERVICE, characteristic_uuid, new Uint8Array([1]), function(){ ui.append('DONE', true); }, function(error){ ui.append('ERROR', true); ui.text('Warning : '+error); } );
The app crash just after displaying "Time is being updated ..."
logcat :
02-05 11:03:54.416 20011 20011 D BluetoothGatt: readCharacteristic() - uuid: ffffffff-ffff-ffff-ffff-fffffffffff1 02-05 11:03:54.577 1049 1049 E WifiTrafficPoller: TRAFFIC_STATS_POLL true Token 65 num clients 9 02-05 11:03:54.578 1049 1049 E WifiTrafficPoller: packet count Tx=94854 Rx=127944 02-05 11:03:54.670 2185 2206 I bt_btif_gatt: set_read_value unformat.len = 42 02-05 11:03:54.671 20011 20878 D BluetoothGatt: onCharacteristicRead() - Device=B8:27:EB:6C:4F:9C UUID=ffffffff-ffff-ffff-ffff-fffffffffff1 Status=0 srvcType=0 srvcInstId=0 charInstId=0 02-05 11:03:54.694 20011 20011 E AndroidRuntime: FATAL EXCEPTION: main 02-05 11:03:54.694 20011 20011 E AndroidRuntime: Process: com.evothings.evothingsviewer, PID: 20011 02-05 11:03:54.694 20011 20011 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.bluetooth.BluetoothGattCharacteristic.setWriteType(int)' on a null object reference 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at com.evothings.BLE$12.run(BLE.java:988) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:815) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:104) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at android.os.Looper.loop(Looper.java:207) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5728) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 02-05 11:03:54.694 20011 20011 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
And on serveur side, everything is fine except that OnWriteRequest isn't called. So android app is crashing before sending information.
Giving some visibility with StackOverflow http://stackoverflow.com/questions/42051102/evothings-ble-write-causing-fc
Hi
I'm trying to send time throung bluetooth to my rpi. but i can't get
evothings.ble.writeCharacteristic
to wrok for unknown reason :/app.js :
The app crash just after displaying "Time is being updated ..."
logcat :
And on serveur side, everything is fine except that OnWriteRequest isn't called. So android app is crashing before sending information.
Giving some visibility with StackOverflow http://stackoverflow.com/questions/42051102/evothings-ble-write-causing-fc