openinverter forum

Dear,

I'm a future HW engineer, and still finishing my final internship on a CPO operator.
During this training , at home on the evening, I'd designed a DIY solution to perform a kind of digital EV simulator.
I need to consolidate both HW and FW, but first tests are ok. I'm able to simulate all cable cross-section through PP signal.
CP states and its PWM reading are pretty fine. Next step, will be to integrate all the functions on a testing tools via scripts.

So, based on its success, I'm looking if I can add more capabilities with PLC.
I'd read all topics of this forum, especially Focci aventure.
Focci is a fabulous and complete embedded product but partialy responde to my need. I think that a daugther board as Yellow beet from 8devices or PLC Stamp Mini 2 from Chargebyte could be the best way to perform my project.
These boards will be commanded with an SBC like a raspberry.

If this proof of concept, is ok, I wish to become an entrepreneur by develloping an EV tooltester.

My question, from your experience, is there some difficulties to perform on the AC side, PnC tests?
And on the future, V2G functions but not my priority.

Thanks for your feedback.
Nicolas

From the datasheet of Chargebyte product, I'm starting my board with some questions.

Is the Zero crossing function necessary as the communication is done on the CP line?
I will use a NanoPi Neo as SBC, so do you advise to better rout my board as a SBC's HAT or can I used wires?



Nicolas

Hi and welcome.
I'm not sure whether I got what you are planning to do, but just continue

The zero-crossing is not required.
For the beginning I would start with dupont-wires to connect your board to the host, this gives flexibility to change as you like to a raspberry, beaglebone or esp32. This could help for trouble-shooting.

Edit: If you plan to develop a board for the car side, you could also use a Foccci, de-solder the STM32, and plug the SPI (and some digital signals for state C, LEDs, etc) to your linux machine.