Same target , different way

The wrongly detected charge plug solved itself away without doing anything. This limiting me to 3,6kw stay: I get very weird temperature reading: Any ideas?

I am having here a discussion on features to add with Jo Hübner , if somebody wants to join or has additional feature ideas : https://github.com/jsphuebner/stm32-sine

Is there any reason , why this regen brake light is not implemented for sdu ?

I am wondering is there any way to get the charged AC Energy ? I want to make a total energy consumed counter. Currently I am integrating (idc x udc) + Power loss

I think once you opt for code generation you have to stick to the path. We used to work with Simulink code generation and the output was unreadable and not meant to be edited.

So either Claude all the way or traditional coding with the usual techniques for readability perhaps with Claude output ...

I put already some time into it and have some more changes to be uploaded: https://github.com/Modellfan/esp32-web-interface/tree/safety/20260310-000046-all-changes

To be honest I like the way of multitasking and separation with queues. But the code is really hard to read for a human. The ...

I can’t tell which battery but I can tell you how I decided in my 986. Measure axle weights when striped down. Estimate how much weight you have left on which axle . Scan with an iPhone or measure manually potential volume of the battery box .

Try to find a battery that matches axle loads , volume ...

Did you even build and test the Canlite environment?

Debug Env was not able to compile because of an sdk .h file missing . Changing the flash method fixed it. Then no Wi-Fi in AP mode visible. Changed to release mode. Was not compilable . Had to change the configs in platform.ini . Now I get ...

johu wrote: ↑Thu Jan 15, 2026 10:00 pm Has some similarities with https://openinverter.org/wiki/VW_Touran_Conversion

https://github.com/commaai/opendbc/blob ... /vw_pq.dbc

Might be gold for you. I am currently implementing it.

The question is, who is willing to test their drive unit with pwmfrq 8.8 kHz? The parameter is hidden, so with the UART connected ESP web interface you need to issue "flag pwmfrq !hidden" command to show it.
On CAN ESP module that command isn't supported so you have to type "set pwmfrq 1" instead ...

Two more topics, that came in my mind:
Why not take over FOCCCI power module? It not only allows to be woken up on Ignition but also wake others up on the same line
Add a eeprom? I would really like to implement freeze frames into ZombieVerter universe. This would make debugging of rare problems ...

Measurements:
With Charger:
PE-CP open
PE-PP 3,19kohm
No Charger:
PE-CP open
PE-PP 4,7kohm

image.png

Component Protection is gone, without doing anything then charging. I added some more values to my OpenInverter Parameter overview. I get more and more the feeling, that the wrong plug ...

I didn’t notice. In my car BMS is in charge of contactor control. I want states (charging , conditioning) where HV should be active but not the SDU. I currently have BMS and SDU parallel connected to the contractors , where SDU is just a failsave holding contactors in case BMS resets , to not break ...

For me driving the SDU in my Porsche 986 the missing emergency off Hard wire would be the biggest thing to add . I worried around it by letting my emergency button put my sdu into neutral via r d wires. But on software side this can never be used to also cut the HV contactors after the motor is in a ...

Some of this Pumps need an external pull-up to 5V. The script is running in my car. I didn’t wanted to interfere with other stuff in the firmware as PWM Pins can’t be accessed by gpio matrix. Open to do for me is still to also read in the PWM answer of the pump.

Jack Bauer wrote: ↑Thu Feb 12, 2026 8:44 pm My working theory is that it uses 2 command ids as it is a dual zone heater. Work continues.

I can see two different Mosfets. But maybe they are also controlled by two bytes in the same ID ?

tom91 wrote: ↑Wed Feb 11, 2026 8:43 pm Have you written your mods in way they could be contributed into the main code base?

Sure I did. It is based on Johannes STM32 template with libopeninv https://github.com/Modellfan/Zombie-Slave

tom91 wrote: ↑Wed Feb 11, 2026 8:49 amNO

I mean this was not a question but my opinion.
I have the Zombie VCU also in use in my car but with a custom software .

Thank you first of all? Do connector and charge unit connected you have 2,7k ohms? That is awkward. I thought they have a standard 4,7k ohms resistor in VW charge ports . I think it is also in the wiki . Might this be the reason for your limiting? PE CP I should measure .

Can I see your code ? Is ...

Nice additional functions . Some of them would also have been on my backlog .

What Gas Discharge arrestor do you use ? Never saw something like this in an automotive Ecu power supply . Is it if the car gets hit by a lightning strike while charging ?

Why having 4 different can transrecievers on one ...

Built in my battery box this weekend and wanted to go for a ride. My ecu didn't let me, because it thought a charge connector is connected even it wasn't.
image.png

IN VCDS the value of charge Port A says, that it isn't connected. I am really confused why the live values say something different ...

Not there yet. From my understanding the cluster is doing some Karman Filter based on current consumption received via can from the Engine ECU and analog signal from the reservoir Level.
I still hope , that by coding and sending the right can messages , maybe also UDS can messages I can move the ...

What do you mean by meter housing ? Maybe have a look at the different VCU projects here. Zombie VCU should do the trick for the beginning. But you have to implement the software yourself .

Yeah, I'll plan on making a video soon that goes over architecture + contributing to the project for both this + the ECU experiments I've been doing. Feel free to DM me about some of the ideas you have - happy to discuss 'em!


Perfect, thank you. I am waiting for it. Instead of DM, I post it ...