[Follow-up on issue #13] Cannot connect with mac address on Android

Cyril

Following on https://github.com/mbientlab/MetaWear-SDK-Android/issues/13 :

This is super weird. I just tested it again on a stock S7, same problem : 

07-21 09:59:21.482 16284-16297/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: onClientConnectionState() - status=133 clientIf=5 device=FF:44:46:AA:21:AF

07-21 09:59:21.487 16284-16297/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: refresh() - device: FF:44:46:AA:21:AF

07-21 09:59:21.490 16284-16297/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: close()

07-21 09:59:21.491 16284-16297/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: unregisterApp() - mClientIf=5

07-21 09:59:21.499 16284-16448/com.mbientlab.metawear.tutorial.freefalldetector E/freefall: Error connecting

                                                                                            java.lang.RuntimeException: Non-zero connection changed status (133)

                                                                                                at com.mbientlab.metawear.android.BtleService$1$2.run(BtleService.java:112)

                                                                                                at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:428)

                                                                                                at java.util.concurrent.FutureTask.run(FutureTask.java:237)

Could this be in the _way_ it's compiled ? What can I be overlooking ? Is the sensor somehow broken or in a bad state ?

On a side note, I'm looking for a quick fix so I can continue working on this app with the sensor. Is there a way to make a scan directly in code, like in Swift  ?

MBLMetaWearManager.shared().startScan(forMetaWearsAllowDuplicates: false, handler: { array in
    for device in array {
        print("Found MetaWear: \(device)")
    }
})

Cyril

I've seen that thread : http://community.mbientlab.com/discussion/1611/onconnectionstatechanged-reported-non-zero-status-133 but I've tested the Freefall app on three different android devices and I have the same problem :

07-20 12:30:07.397 6167-6167/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: connect() - device: FF:44:46:AA:21:AF, auto: false

07-20 12:30:07.397 6167-6167/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: registerApp()

07-20 12:30:07.407 6167-6167/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: registerApp() - UUID=8d3c79b1-8297-4d52-b7dd-c0fc6cce1593

07-20 12:30:07.457 6167-6177/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: onClientRegistered() - status=0 clientIf=6

07-20 12:30:07.517 6167-6167/com.mbientlab.metawear.tutorial.freefalldetector I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@270cef02 time:2235749

07-20 12:30:12.492 6167-6177/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: onClientConnectionState() - status=133 clientIf=6 device=FF:44:46:AA:21:AF

07-20 12:30:12.492 6167-6177/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: refresh() - device: FF:44:46:AA:21:AF

07-20 12:30:12.532 6167-6177/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: close()

07-20 12:30:12.532 6167-6177/com.mbientlab.metawear.tutorial.freefalldetector D/BluetoothGatt: unregisterApp() - mClientIf=6

07-20 12:30:12.542 6167-6358/com.mbientlab.metawear.tutorial.freefalldetector E/freefall: Error connecting

                                                                                          java.lang.RuntimeException: Non-zero connection changed status (133)

                                                                                              at com.mbientlab.metawear.android.BtleService$1$2.run(BtleService.java:112)

                                                                                              at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)

                                                                                              at java.util.concurrent.FutureTask.run(FutureTask.java:237)

                                                                                              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)

                                                                                              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)

                                                                                              at java.lang.Thread.run(Thread.java:818)

The Metawear app (that scans and does not connect directly via the mac address) can connect to the sensor on these phones, so it's not a problem with the phones.

Any idea on how to solve this problem ?

Thanks

Eric

Those status codes are internal codes returned from the BlueDroid C code.  As mentioned in the linked thread, there isn't much you can do except try again and/or reset the Bluetooth adapter.

Eric

The Android example apps use a separate library to handle the BLE scanning and UI elements.

https://github.com/mbientlab-projects/BleToolbox

You can try resetting the BT adapter to see if that helps however, as already stated, the only thing to do is to attempt to connect again.