Freematics OBD-II UART Adapter V2.1 CANNOT Initialize! about arduinoobd HOT 4 OPEN

It's because the code hasn't been updated in years. I've never gotten it to work and just use Tunerview.

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@mitchschaft Thank you for the timely reply! Could you link me to that library?
Edit: Found out that that's an app for Android. I need a library that will work with Arduino :D

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@ALEEF02 According to the displayed messages your adapter itself works so far but it can't communicate with the car.
Which protocol does your car use?
If you're using ISO9141-2 over K-Line it will never work, as I already wrote in the other thread you mentioned me.

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@firepower2k11 My car uses the SAE J1850 VPW protocol, which I learned in an email thread with @stanleyhuangyc. Since then he has stopped replying to said emails. I was at first wondering if I could get a refund, at which he stopped replying. Now I am wondering if there is a hardware or software modification that can be made to the adapter so that it can use the SAE J1850 VPW protocol. I tried modifying the library by adding PROTO_SAE_VPW = 2 to the OBD_PROTOCOLS list, but that did not help. If you have any ideas for this, that would be wonderful. Thanks :D

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