I am trying to use the OBD library from Freematics OBD-II Adapter for Arduino | ArduinoDev.com The library .cpp file starts with #ifndef OBDUART #define OBDUART Serial #endif So I assumed that I need to add a #define in my sketch file to say: #define OBDUART mySerial But it doesn't work. When i…

Using a SoftwareSerial port within a library

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