my card gives me thanks to the library all the data I need without any problem.
Now I need to get the list of the controller errors.
To do so you need to send the code 03 to the OBD reader.
But how can I do?
I have to use the function SendCommand how can I interpret the answer?
I saw among the changes proposed the addition of getDTCs function but nell'inserirla returns me an error on Serial.printf function saying that the printf function does not exist in HardwareSerial class.
What can I do to get this information?
Thank you in advance for your help.