How to Serial comm. wait for a string?

[Heckler]

Hi elcrcp,

If you look in the PBP manual under "serin2" you will find the "input modifiers" table...

DEC{1...10} allows you to specify how many decimal digits to receive into the next variable.
So DEC2 latdeg,DEC2 latmin,wait(".")
will receive the next 2 decimal digits into the variable "latdeg" and then the following 2 decimal digits into "latmin"

There is also a "SKIP n" parameter to ignore the next "n" digits, etc. etc.

GPRMC VAR BYTE[64]

hh      VAR BYTE  'hours
mm      VAR BYTE  'minutes
ss      VAR BYTE  'seconds
sss     var word  'milliseconds
fix     VAR WORD  'GPS fix
latdeg  VAR BYTE  'degrees latitude
latmin  VAR BYTE  'minutes latitude  
latminn var word  'fractional minutes latitude
NS      VAR BYTE  'north or south
londeg  VAR BYTE  'degrees longitude
lonmin  VAR BYTE  'minutes longitude
lonminn var word  'fractional minutes longitude
EW      VAR BYTE  'east or west
Knots   VAR byte  'speed in knots (units)
Knotss  var byte 'speed in fractional knots
course  var word  'heading
dy      VAR BYTE  'day
mt      VAR BYTE  'month
yr      VAR BYTE  'year

above is how I defined my varialbes...

so if the latdeg value is between 0-255 it will fit within the "byte" sized variable even if it is 1,2 or 3 digits (ie 99, 127, 08, etc)

PS. I may not have correctly sized all the varibles (bit, byte or word) so use your own judgment there... I wrote that code a couple of years ago.

Since "course" could be anything between 0-359 degrees it would need to be bigger than a byte as a byte can only hold up to 255

hope that helps