Connection status was set to OS code 08

[Pawel_Z]

Hi everyone,

I have got a little problem with the connection app to my mobile via BLE.

I am using the newest version of extension, and when I choose device from the list I receive error named: "Connection status was set to OS code 8".

Below you can find a diagram. I used RN4871 BLE module.

BLE module works ok because it is working well with the commercial app.

Thanks!

[ABG]

Can you upload and post your sketch code here?

Also, what is your model phone?

[ewpatton]

Android version is also helpful, since the error code conditions can vary from version to version.

[Pawel_Z]

Hi guys,

Thanks for your answers.

For testing I used a really old mobile named Oppo A53 with Android version 12.

I can not update Android system on this mobile, so Today I will try to check my app on iOS or I will try to get a new mobile with the newest Android system.

Do you think that the problem was an old version of Android? Is my code looks ok? I am asking because it is my first app.

Thanks!

[Pawel_Z]

I found the reason, I sent data from the MCU to the mobile phone too infrequently.

I set transmission to polling mode and the problem was solved.