My parts have all finally arrived and I’m starting to build. It’s been a couple of years since I programmed Arduinos (4 actually). I installed the 1.6.3 IDE, downloaded your sketch and the required lib etc.
When I try to compile I get an error
parseNewdata.ino: In function ‘void parseNewData()':
parseNewdata.ino:63:37: error: invalid conversion from ‘const char*’ to ‘char’ [-fpermissive]
The line says
receivedChars = “”;
That looks fine to me – right kind of quotes anyways.