Source for BYD Atto 3 battery state of charge

We ended up opting for the Atto3 which arrives in a couple of weeks.
I’ve already ordered the EV Switch charger and have configured EVCC via Docker as well as the HA integration - so I’m ready for it.

I was chatting with one of my colleagues who has a couple of EVs was thinking of setting it up to get his battery levels via OBD Bluetooth’d to a Pi in his garage.
I’ve got a Pi Zero 2 W,