This kit is based on Freematics Esprit, the Arduino compatible ESP32 dev board, together with 1.3" OLED display and Freematics OBD-II UART Adapter.
OBD-II & CAN Bus Development Kit from martinchong on Tindie
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The OBD Ⅱ Slaver allows you to hack your vehicle with the integrated OBD port and output all the data via serial interface.
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esp32-obd2/README.md at master · akos-sereg/esp32-obd2 · GitHub