Interesting about the reverse logic. Can i easily reverse the signal?
...if I just change the transmission style (reverse HIGH and LOW) in SoftwareSerial.cpp, do I need to recompile to SoftwareSerial.o to work when I include in my sketch? Is that the easiest way to solve this problem?
Another question I have been wrestling with. How exactly am I going to address the ELM chip? It's expecting HEX commands (to be passed on to the LANC device). So, if I want to send "1839" or "2CA9" to the lanc, what is the correct syntax for serial printing?
mySerial.println(1839);
or do I need to send the format in DEC?
mySerial.println(49565157 );
or what?