I think that this open-source ESP32-based OBD (On-Board Diagnostics) hardware adapter for cars/trucks + open-source firmware combination in this crowdfunding campaign on Crowd Supply could be an very interesting product …
WiCAN ESP32 based open source OBD2/OBD-II Car Diagnostics CAN Bus to WIFi/ BLE/USB adapter Home Assistant integration? - Hardware - Home Assistant Community
ESP32 CAN board fits into OBD-II dongle, supports auto shutdown - CNX Software
WiCAN
GitHub - meatpiHQ/wican-fw
WiCAN - ESP32 OBD2 WiFi/BLE to CAN Bus adapter from MeatPi Electronics on Tindie
WiCAN - ESP32 OBD2 WiFi/BLE to CAN Bus adapter from MeatPi Electronics on Tindie
WiCAN ESP32 based open source OBD2/OBD-II Car Diagnostics CAN Bus to WIFi/ BLE/USB adapter Home Assistant integration? - Hardware - Home Assistant Community
Is this possible? OBD2 -> ESP32 -> Home Assistant? : r/homeassistant
ESP32 OBD2 open source adapter, WiFi/BLE CAN Bus works with Home Assistant and ReadDash
WiCAN - ESP32 OBD2 WiFi/BLE to CAN Bus adapter