Serial port over bluetooth not working with Ubuntu or macOS but Android app working #9
Description
I have a Bittle X BiBoard V0_1, and I am using the current default branch of that repo to flash the sketch.
On Android - OK
I can use the Android app after pairing my Bittle with it with no problem:
20:47:33:771 -> Pairing success!!
20:49:04:176 -> Bluetooth connected!
20:49:05:773 -> G
20:49:05:775 -> Bittle
20:49:05:775 -> B01_231206
20:49:05:775 -> ?
20:49:40:628 -> Bluetooth disconnected!
Notice that we can see the message "Bluetooth connected!" coming from the bleUart.hfile.
On macOS - FAIL
I can pair with the Bittle from a macOS M2/3 (after enabling all the macOS security for VSCode/Terminal).
In the Bittle logs I can see "Pairing success!!" but I never see a "Bluetooth connected!" message.
I can see two serial sockets /dev/tty.Bittle67_SSP and /dev/tty.Bluetooth-Incoming-Port and I can also open them but I see no message received and the one I send seems to have no effect on the Bittle.
It might not be related at all, but I also noticed this function called void readBlueSSP() that is commented in io.h.
On Ubuntu - FAIL
I am using Ubuntu 23.10. Here it seems to be something else than the issue seen on macOS, since I cannot pair the Bittle with Ubuntu.
When trying, Ubuntu shows a security popup with a PIN number which is the same as the one printed on the serial port of the Bittle. Then, when I click yes, the process hangs and ends up timing out with a failure. Looking at the Ubuntu logs, it seems to be related to authentication.
It's weird because on macOS, I don't see any popup with a PIN code.
I tried using multiple versions of ESP32 from https://github.com/espressif/arduino-esp32: 2.0.12 (the one recommended), 2.0.13 and 2.0.14.
If you have any idea what's going on or what I am doing wrong, please let me know. ping @borntoleave