BLE Connect fail with Android-nRF-Toolbox

RE: BLE Connect fail with Android-nRF-Toolbox

Karl Ylvisaker — Mon, 07 Dec 2020 11:29:50 GMT

Hello again Steven,

[quote user="Steven Chen"]I will test the tagged version 2.9.0.[/quote]

Great, I look forward to hearing how it goes!

[quote user="Steven Chen"]The module is developed based on UNISOC UIS8910DM chip, which including BT inside.[/quote]

I am unable to find this component unambiguously. Do you have a datasheet you could share, if the test on the 2.9 tagged release fails?

Best regards,
Karl

RE: BLE Connect fail with Android-nRF-Toolbox

Steven Chen — Mon, 07 Dec 2020 01:09:54 GMT

Dear Karl,

I will test the tagged version 2.9.0. The module is developed based on UNISOC UIS8910DM chip, which including BT inside.

RE: BLE Connect fail with Android-nRF-Toolbox

Karl Ylvisaker — Fri, 04 Dec 2020 12:01:08 GMT

Hello Steven,

[quote user="Steven Chen"]Thanks for your answer. I use the code downloaded from https://github.com/NordicSemiconductor/Android-nRF-Toolbox. And I didn't do any modification. I connect the device(40:45:da:**:**:**) from the scan activity by click the bluetooth icon.[/quote]

Which tagged release of the repository are you using?
The .rar file you have included indicate that you might be using the master branch - I highly recommend that you only stick to using tagged releases, instead of the master branch, since the master branch is constantly being worked on, and certain things may thus not work as intended.
In the case that you were using the master branch in the test for your original ticket, could you perform the same test again with a tagged release instead ( such as the 2.9 release ) and see if the issue persists?

[quote user="Steven Chen"]The device is a BLE module.[/quote]

Could you elaborate, which BLE module is it exactly?

Looking forward to resolving this issue together!

Best regards,
Karl

RE: BLE Connect fail with Android-nRF-Toolbox

Steven Chen — Wed, 02 Dec 2020 00:47:45 GMT

Dear Karl,

Thanks for your answer. I use the code downloaded from https://github.com/NordicSemiconductor/Android-nRF-Toolbox. And I didn't do any modification. I connect the device(40:45:da:**:**:**) from the scan activity by click the bluetooth icon.

The device is a BLE module.

devzone.nordicsemi.com/.../Android_2D00_nRF_2D00_Toolbox_2D00_master.rar

BR,

Steven

RE: BLE Connect fail with Android-nRF-Toolbox

Karl Ylvisaker — Tue, 01 Dec 2020 12:37:25 GMT

Hello,

[quote user=""]I am learning to develop an Android BLE apk.[/quote]

Welcome!
By this you mean that you are working with our Android BLE Library, correct?

[quote user=""]2020-11-30 14:55:35.628 5443-5443/no.nordicsemi.android.nrftoolbox I/BluetoothDevice: connectGatt
2020-11-30 14:55:43.485 5443-5479/no.nordicsemi.android.nrftoolbox W/BluetoothGatt: Unhandled exception in callback
java.lang.NullPointerException: Attempt to invoke virtual method 'void no.nordicsemi.android.nrftoolbox.ble.f.a(java.lang.String, int)' on a null object reference[/quote]

It seems to me that the code might proceed with the connection after the unhandled exception in the callback. - such as calling a connection method on a NULL connection object.
Could you share the part of your code where it fails - where you initiate a connection?

What is the device you are trying to connect with, by the way?

Looking forward to resolving this issue together!

Best regards,
Karl

RE: BLE Connect fail with Android-nRF-Toolbox

Steven Chen — Mon, 30 Nov 2020 08:36:30 GMT

upload full log of nRF Connect and nRF Toolbox.

devzone.nordicsemi.com/.../nrfconnect.txt

devzone.nordicsemi.com/.../nrftoolbox.txt