BLE read and write don't work in APK, but work perfectly in live preview

Questions about Thunkable BLE / BlueTooth
1

Hi folks,

my BLE app works just perfectly with the live preview on my Android 12 device A53, and mostly works from the APK. my app reads 5 Characteristics and Writes to 2 Characteristics one of the Characteristics is both read able and writeable (settings). Everything works perfectly in live preview in APK the single read and write Characteristic displays an error: something like operation was rejected (will verify tomorrow) My question is where do I go from here? how can I dive deeper into debugging the APK, what next steps can I take?

2

So I’ll reply to my own questions: not sure what happened but I was storing characteristic id’s in an app variable and then in the BLE read and write I was assigning them from the app variables. I have no idea why it didn’t work for just one characteristic. But I ended up removing all characteristic id’s from app variables and just using the hardcoded text. deleted all unused app variables too, Did a re-download of APk and all was well.

Would love to know what was going on under the covers

1 Like