So looks like the rest API is the best way of talking to the charging station. There is a server running on the RPi listening on port 2222 that relays [and en/decodes] messages to a serial device connected to the GPIO header. Theoretically, it would be possible to debug those messages and create an ...

I'm wondering if you managed to get the dump. I would be interested in digging into it, too. Looks like they use RPI 3 model B rev2 based on the images with no 5Ghz wireless support. I'd be interested in replacing it with a newer model, too. Both 3B+ and 4 support 802.11AC over 5Ghz. Looking at this ...