if I start m5burner, select UIFlow_Fire, configure WLAN and USB-Driver and burn ... I only get the API-Key message, the setup menu and the app menu (temp.py) on the display ... nothing else to do.

I can now start UIFlow and program the device
with blockly (-> modules -> bala2, there are some commands for the encoder motors ... but not for selfbalancing!)
or with micro python (but there is no list of the available commands for selfbalancing)

now back to m5burner:
I also tried the upper menu
– Serial Monitor: successfully connects to the device
– Firmware Exporter: exports an esp32fw.bin file?
– Refresh Firmwares: nothing happens?!

After m5burner, UIFlow Blockly, UIFlow Micropython I finally tried Arduino. There is indeed a file FactoryTest (Examples -> M5Stack -> Basic: FactoryTest) and it works but it' s not the program for selfbalancing then I tried bala2.ino (Examples -> M5Stack -> Modules: BALA2) ... and I got the error message above.

No matter which way I choose I don't succeed in restoring the original (delivery-)code with the self balancing car that's what I mean with restoring the firmware.

If you have a new idea tell me please.

Thanks

wzemann

that would be fine, but ...

1. m5burner burns only UIFlow_Fire, the base for working with UIFLow ->

2. UIFlow (desktop-version): there only exists BALA, but no BALA2 and there are important differences between them

3. UIFlow (web-version): there are two modules
   a) BALA with the option balance loop (but doesn't run with BALA2)
   b) BALA2 but without the option balance loop!

That's a bit stupid and I don't know why but ...

wzemann

thanks a lot for your quick support. Now I have to implement your lines in the BALA2.ino program. I'm not so experienced so it will take a bit of time. There are some differences to your IMU.h and IMU.cpp, but with your help I think I'm on the right track now.

wzemann

have a look at my PR. I've added the missing functions.

Note: I do not have a Bala2 so I cannot test if the resulting firmware is correct.

Thanks
Felix