What is the best way to start creating an application for car diagnostics through an elm (OBD2) scanner?

Question

Java

Good afternoon everyone! I am a beginner, I studied java for a while, I know the basics.
Please tell me, I would like to create an application for car diagnostics via obd2
But I don’t know where to start! In what direction to move, so to speak, what information to read. I could not find much information on this topic on the Internet (
Thank you all in advance for any answer and help! :)

Answer 1

Taking into account the comments left above, I will assume that you need an API to work with some device called ELM 327, which connects to the car via the obd2 connector.
Surely the manufacturer of these devices offers some kind of API for working with it.
I googled for you and this is what I found:
Git search result - https://github.com/topics/elm327
For example, Android OBD diagnostics with any ELM327 adapter https://github.com/fr3ts0n/AndrOBD
https://github .com/pires/obd-java-api
It remains to study the API of this adapter
Here is a similar question on SO
https://stackoverflow.com/questions/35764056/how-t...
Here is another library https://github.com /pires/android-obd-reader
Google knows everything