Actually after completing the hardware, I stalled because I couldnt get the software/firmware architecture straight.

Ironically when I did that, it opened up so many opportunities until i eventually ended up with https://pycoclaw.com

Yes its a full OpenClaw clone

This is about 30k Python LOC ...

@tom91 IIRC I had some library install error compiling for esp32 and couldnt be bothered to fix it, as i consider them basically obsolete haha

S3 (and P4) are so much better, esp security wise

bear in mind the platform supports a lot more than just OI eg

https://pycoclaw.com

but will take a look

hopefully most of what you need to create any apps for the platform should be in

https://scriptostudio.com/docs/

So long time readers will know I've been working on a new robotics platform, and finally have the software all packaged up, and one of the extensions I created it for first was OpenInverter
image.png
If you have an esp32s3 (or P4) lying around with a CAN interface, you can now install it with one ...

Hi @outlandnish,

This is beautiful work, so much so I had to use your ideas in my own re-imagining of the use of the ESP32!


Screenshot 2026-01-14 at 09.46.06.png
Screenshot 2026-01-14 at 09.50.12.png
Screenshot 2026-01-14 at 09.53.00.png
Screenshot 2026-01-14 at 09.55.06.png ...

Little did I know how far down the rabbit hole this whole Zombieverter, Openinverter thing would take me...

After making the hardware for Headless Zombie, I started on the difficult bit, the software, and frankly it grew out of control.

Finally got it converged though, and the result is ScriptO ...

Do you have the hardware already with you? I would be willing to jump on and help implementing the software.


Hi modelllfan, yes I do have hardware which checked out OK.

Ive been through several versions of the SW architecture. As you know, I really wanted to support scripting, as ive seen how ...

Personally i prefer the idea of serving a webapp from the esp32, because the presence of an esp32 also allows for run time scripting which solves the enduser customization problem (ie no recompile for each project)

eg look at MPY-jama for a javascript app that can be served by the esp32 and that ...

You need to see the full list of error codes displayed while in service plus mode.

That will tell you whats wrong.

Having fixed my own 2015 MS which wouldn't even close the contactors, I'd guess this is worth fixing rather than breaking...

modellfan wrote: ↑Tue Jun 17, 2025 11:08 am Do you have a link to the implementations?

Sure, see

https://github.com/jetpax/HeadlessZombi ... rc/drivers

They are pretty basic at the moment, but PRs accepted!

tom91 wrote: ↑Thu Mar 06, 2025 10:50 am The BMS E6x and E9x have brake over CAN.

At this moment this is not a good idea due to how the CAN reading is done by the Zombie.

Why is that?

Hello community,

As a primer - Vectrix VX1 is a maxi scooter, designed some 20 years ago, the frame is basically a big battery box, motor is 22kW peak. Company went under multiple times, allegedly spending $ 250M+ to produce <2k units. Entire vehicle is CAN controlled, consists of ICM (controls ...

While my bench power supply is on its way from China, I wanted to look how the immobilizer works.

Screenshot from 2025-02-17 21-00-20.png

As soon as the inverter logic has power and VCFRONT transmits the 0×221 (VCFRONT_LVPowerState) message, it (inverter) shoots the 0×276 message to the CAN ...

Why did you move over to TIC12400QDCPRQ1? Infineon at least supported a arduino library .


Actually the Infineon part was replaced by a DRV8912, for availability reasons.

The TLE94112 driver I think you are referring to is for Arduino framework, is specific to motors, (whereas we want to use ...

No, there are chargers that require Control Pilot signal to function thus the Zombie needs to replicate it.[quote=jetpax post_id=79435


Hmm now you're confusing me! I thought that Foccci had a CP signal which can be spoofed and the charge current controlled by CAN to satisfy the limits of the AC ...

at the moment I am using this
https://www.ebay.de/itm/364842234939

and, yes it is 2 Hz PWM, according to the technical data 5V, but with that the pump does not start at all, only at 12V 2Hz PWM the pumps start running, I have no idea why
by the way, I fail to even generate a pwm on the zombie ...

Chill @tom91, I know you don't mean to, but sometimes you do come over as a little rude on this forum.

Like you, although I didn't create it, I'm contributing to an open source project with code and hardware.

Am also trying to help improve Open Inverter at the same time.

In answer to your ...

@maiks,

Can you confirm that you actually need a variable resistor to drive the fuel gauge?

Many old school fuel gauges just rely on the current through the gauge so this could possibly be simulated with a PWM open drain signal at say 2kHz?

Would be very interested to know more about your ...

@medo, would be very interested to know more about your application, as I'm just coding the PWM support in HeadlessZombie which is a fork of Zombie with more flexible I/O.

There are 12 reconfigurable outputs which can do pull up or pull down PWM, (in addition to 2 dedicated processor driven PWM ...

Indeed, well spotted grasshopper, was fixed in production release which uses TIC12400QDCPRQ1

(and also switched to the TI DRV8912 O/P driver, which is almost pin compatible with Infineon part...)

Are you planning to sell this as a product in the future?


Definitely, if there is any interest.

This is the MINI version that uses a commonly available ECU case

image.png

though it has to be drilled for antennae, and will be powder coated.

(Color preferences anyone? 8-) )

Will likely do ...

Thanks @outlandnish!

Re Micromod, turns out that the STM32F405 board linked above has 2 SPIs brought out, the second is actually on the "I2S pins", so I was able to use those (the motherboard uses one SPI for IO, the other for CAN controllers)

So actually had no need of more STM32 IO.

See ...

Thanks for your inputs on this and other forums, I released HeadlessZombie to production today.

Fingers crossed!

Now, firmware...

Thats a very good question @peakPWR that I was also struggling with.

Its one of the reasons I built HeadlessZombie the idea being to run a scripting language on the ESP32 (cf OVMS) that can respond to state changes over CAN from OI and send new state requests back to OI as needed.

That way, OI ...

Thanks @modellfan, actually I started off a bit like this using a Lilygo T-SIM7600 to port the OVMS code before I made my own hardware.

The M.2 socket (which added very little cost) had the advantage of allowing different modems in the future (ask current Smart453EQ drivers how it feels when the ...