If you want to start car hacking through your OBD-II port using a bluetooth scanner - ELMduino is for you. ELMduino download and GitHub Link This library is also installable via the Arduino IDE's Libraries Manager. You can use this library to interface with OBD-II scanners such as this common one and will work with any car that has an OBD-II port: And you can use it to query any pieces of data as specified by the OBD-II public PIDs. Here is a list of PIDs supported. Some notables include
Raspberry Pi OBD GUI ? : r/CarHacking
GitHub - BennehBoy/LRDuino: DEPRECATED In car multi gauge system - STM32, SSD1306, MAX31856, ADXL345, ELM327
elm327 · GitHub Topics · GitHub
ELM327 + Arduino = Awesome DIY Car Gauge
ELMduino - Library for Car Hacking - #16 by cabriobob - Exhibition / Gallery - Arduino Forum
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Hack an ELM327 Cable to Make an Arduino OBD2 Scanner : 3 Steps - Instructables
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Car Heads Up Display - #38 by GaryP - Exhibition / Gallery - Arduino Forum