			#!/usr/bin/python

			import socket

			def NMEAaddChecksum(nmea) :
			checksum = 0

			for c in nmea[1:] :
			checksum = checksum ^ ord(c)
			nmea += '*' + format(checksum, '02X') + '\r' + '\n'
			return nmea

			def sendNMEA(s, nmea) :
			nmea = NMEAaddChecksum(nmea)
			print nmea
			#s.send(nmea)


			if __name__ == '__main__':
			# Connect to VESPER XB-8000
			s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
			s.connect(("192.168.15.1",39150))

			sendNMEA(s, '$ECRMB,A,0.002,R,,POV,4302.541,N,00559.198,E,3.540,129.787,0.020,V')
			sendNMEA(s, '$ECAPB,A,A,0.002,R,N,V,V,129.659,T,POV,129.787,T,129.787,T')

mux0183/lib/nmea.py
7c490bb8bb0amaster

nmea.py
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