static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
What does this mean?
The above link contains the full example program of that line.
This line is from tinygps++ library for extracting the coordinates and displaying in a table format. I'm using arduino uno, GSM module and GPS module to extract the coordinates and transmit it as message. Can anyone explain what dies this constant value mean and why do we use this?