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?

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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 ...