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Posted: **Tue Nov 25, 2025 1:01 pm**

dennist wrote: ↑Tue Nov 25, 2025 12:53 pm again what do you think guys?

I think there should be a good reason to break backward compatibility. Why do you want to do these changes?

Posted: **Tue Nov 25, 2025 2:16 pm**

dennist wrote: ↑Tue Nov 25, 2025 12:53 pm Hello again!
I have looked a bit deeper on the current schematic.
what i have found:
Pin mapping on stm32 is sub optimal. changes also need changes in software.
CAN RX/TX from PA11/12 to PB8/9
add usb on PA11/12 Debuging without CAN / Firmeware upgrade without flasher hardware
LED_alive from PB7 to PC13
i2c on PB6/7 (for isolated messurement of HV Bat voltage.) Security reason, I don't want high voltage on the 12V ground same as chassi. its a risk

again what do you think guys?

edit
ah i see the hv input is a 5v input for a external device. but anyway think integrated is better.

Posted: **Tue Nov 25, 2025 5:00 pm**

There has never been a non-isolated voltage measurement, and no one has suggested one. USB can help if the board is accessible. That's not the case for me because it's in the battery box. At least for me, your changes are uninteresting, and I would have a problem with the lack of backward compatibility.

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