BLE extension doesn't connect to ESP32-C3 mcu, error "Connection status was set to OS code 133"

[KevinTetreault]

Hi,

I'm getting a connection error when trying to connect my app to ESP32-C3 mcu.

I'm using the latest extension BluetoothLE.aix 20230728.
My phone is a Samsung S20+ with Android version 13 and latest software updates.
I've tested the code in the ESP32-C3 by connecting to it using nRF Connect app.

If I downgrade my extension to version 20201223, I can connect when using AI companion, but if I compile this to an apk and install, the app doesn't work (permission errors).

• [ x] Designer
• Blocks editor
• Companion
• Compiled apps
• Buildserver
• Debugging
• Other... (please describe)

Expected behavior

Here's an image of the code I'm using for testing purposes.

[kevindevm]

same

[jack-ii]

I think I have the same problem, even with the latest version 20240822.
I have an ESP32 C3 SuperMini. I can find the devices but can't connect. I also tried connecting by name, it clears the list but it doesn't connect. I also tried three other Inventor apps from tutorials without success. It works fine with the test app LightBlue. That's why I think it must be an Inventor or BLE extension problem.

[PythoErgo]

Hello, currently having the exact same problem too actually. I've been tinkering around with this issue for a few days and only managed to get it connected maybe 5 or 6 times, probably just from luck somehow since it's never consistent.

[PythoErgo]

I'm pretty sure I found the solution, please go to my original AppInventor Forum question here:
https://community.appinventor.mit.edu/t/bluetoothle-extension-very-confusing-esp32-c3-communication/160633/12