[Ovmsdev] New to OVMS development

[Info Zeitnitz]

Hi everyone,
my name is Christian and I started some time ago to adapt the OVMS firmware to my hardware.

The hardware is a Lilygo T-Call A7670E V1.0 board (ESP32 Wrover-E, 4G modem Simcom 7670E, 4MB Flash, 8MB PSRAM) mounted on a custom PCB providing power, two CAN bus transceivers  and 1 MCP2515. No 
extension chip is implemented.

I use this to connect to my Smart EQ, which actually needs only a single CAN bus.

I got the firmware going, including the 4G modem and its running reasonably stable, even though the Lilygo board has only 4MB of Flash (had to disable OTA and some other components). It works with 
both server versions.
This firmware is based on the Version 3.3-004 tagged in the Github repo. I had to modify the code to get it working without the extension and with the Simcom 7670 module. In addition I added some 
changes from the master branch, especially for the Smart EQ.

I would be willing to share some of the mods I did to the code and contribute to the further development.
Especially the cellular code, which is still utilizing PPP, could benefit from an update to TCP/IP. I actually had quite a hard time to get the modem going with PPP, since the Simcom 7670 does not 
understand all the used AT-commands.

So, I hope for a productive collaboration.

Best regards
    Christian