<html><head></head><body><div>Hi Christian,</div><div><br></div><div>very impressive. You did a great job on the development and on the documentation.</div><div><br></div><div>It is good to have an alternative hardware option.</div><div><br></div><div>As you mentioned, it is a disadvantage that OTA is not possible, but that seems to be the price for a cheaper hardware. Other obstacles I see, is that the hardware seems only available directly from China and that we need to build our own motherboard. That is for me the greatest hurdle, alltough you did a great documentation with the Eagle schematics.</div><div><br></div><div>I would like to test your hardware approach, if the hardware would be available as a "ready to go" kit. Are you planning on providing such a kit?</div><div><br></div><div>I could definitly see this as part of the OVMS repository. Lets see what the other opinions on that are :-)</div><div><br></div><div>Regards</div><div><br></div><div>Chris</div><div><br></div><div>Am Samstag, dem 26.04.2025 um 17:40 +0200 schrieb Info via OvmsDev:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>Hi,<br></div><div>I finished the implementation and documentation of the OVMS module based <br></div><div>on the Lilygo T-Call A7670E board (ESP32 WROVER E and a Simcom A7670E).<br></div><div>The module is in operation since more than a month in my Smart EQ.<br></div><div><br></div><div>The hardware details can be found here: <br></div><div><a href="https://github.com/zbchristian/OVMS-Lilygo-based-Module">https://github.com/zbchristian/OVMS-Lilygo-based-Module</a><br></div><div><br></div><div>There are some limitations wrt the standard module:<br></div><div>- only 4MB Flash -> no OTA update<br></div><div>- no GPIO extender -> only 2 CAN buses<br></div><div>- no SD-card support<br></div><div><br></div><div>The required modification in the firmware:<br></div><div>- remapping of the ESP32 pins in ovms_peripherals<br></div><div>- replace some of the GPIO extender pins by standard ESP32 pins<br></div><div>- new hardware option in menuconfig (set CONFIG_OVMS_HW_BASE_LILYGO_1_0=y)<br></div><div>- Simcom 7670 modem support (already available in the OVMS repo)<br></div><div><br></div><div>All this is available in the branch lilygo-support of <br></div><div><a href="https://github.com/zbchristian/Open-Vehicle-Monitoring-System-3-Lilygo-Support">https://github.com/zbchristian/Open-Vehicle-Monitoring-System-3-Lilygo-Support</a><br></div><div><br></div><div>My question to the main developers: Is there interest to incorporate <br></div><div>this into the official OVMS repository?<br></div><div><br></div><div>Best regards<br></div><div> Christian<br></div><div><br></div><div>_______________________________________________<br></div><div>OvmsDev mailing list<br></div><div><a href="mailto:OvmsDev@lists.openvehicles.com">OvmsDev@lists.openvehicles.com</a><br></div><div><a href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a><br></div></blockquote><div><br></div><div><span></span></div></body></html>