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ESP32_OBD_Engine_Oil_Temp

Reads engine oil temperature and battery voltage via ELM327 mini bluetooth scanner from car OBD and prints on OLED display

It has been tested sucessfully with following setup:

  • Windows 10 x64
  • Arduino IDE 1.8.18
  • ESP32 D1 mini (other uC boards work as well with some modifications depending on the model)
  • OLED TFT ILI9341 display 2.8" 320x240px (red colored board version)

Requires following extensions installed to the Arduino IDE:

  • Bodmer's "TFT_eSPI" library (I used v2.3.70)
  • Powerbroker2's "ELMDuino" (I used 2.6.4)

Required hardware components:

ESP32 D1 mini
OLED TFT Display 2.8" 320x240px (ILI9341)
ELM327 mini bluetooth scanner