BLE data is not readable in Serial Bluetooth Mobile App

RE: BLE data is not readable in Serial Bluetooth Mobile App

Einar Thorsrud — Thu, 16 Nov 2023 09:32:15 GMT

[quote user="bilal7317"]1. Does nRF encrypt the data or is it just the problem of encoding selection?[/quote]

The data is not encrypted on the application layer (if you use pairing/bonding it would be encrypted by the stack, but decrypted before the app sees it), so that is not the problem.

[quote user="bilal7317"]2. I have their firmware so can I get any information about encoding from code?[/quote]

Yes, you can. Or perhaps it is binary data? If so, it makes no sense to display it as any form of text (regardless of which encoding yo use). you could display it as hex in that case, but you will have to understand what it means.

[quote user="bilal7317"]3. Is it possible that they have use some kind of encryption? I have skimmed through code and there was no such thing but still if there is possibility then kindly let me know. [/quote]

On the application layer? It would be sprising, but who knows. All I know is that it is data of some sorts (meaning a string of 1's and 0's representing something.

RE: BLE data is not readable in Serial Bluetooth Mobile App

bilal7317 — Thu, 16 Nov 2023 05:00:28 GMT

I have tried US-ASCII, UTF-8, UTF-16, UTF-16LE, UTF-16BE but still it is showing garbage data.

I have few other questions:
1. Does nRF encrypt the data or is it just the problem of encoding selection?
2. I have their firmware so can I get any information about encoding from code?
3. Is it possible that they have use some kind of encryption? I have skimmed through code and there was no such thing but still if there is possibility then kindly let me know.

RE: BLE data is not readable in Serial Bluetooth Mobile App

Einar Thorsrud — Wed, 15 Nov 2023 13:12:09 GMT

I am not familiar with the app you are using, but I suspect an encoding issue. If the data is sent as ASCII, you should select ASCII as the format in the app (if possible).