Arduino OBD2 trip computer, see https://thomwijtenburg.nl/arduino-obd-2-trip-computer/
- Arduino Mega 2560
- HX8357 3.2" TFT shield (http://www.banggood.com/3_2-Inch-320-X-480-TFT-LCD-Display-Module-Support-Arduino-Mega2560-p-963574.html)
- HC-06 Bluetooth module
- TFT_HX8357 library (https://github.com/Bodmer/TFT_HX8357)
- ArduinoOBD library (https://github.com/fust/ArduinoOBD/tree/master/libraries/OBD)