nmeaSender.py
dc011d5f65b8master

nmeaSender.py
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			#!/usr/bin/env python3

			#
			# Fake depth gauge (sending DPT)
			#

			import socket, sys

			class NmeaSender:
			"NMEA0183 sender. Connects to a server an sends sentenses"

			__port = None
			__host = None
			__s = None
			RECV_BUFFER = 4096 # Advisable to keep it as an exponent of 2

			def __init__(self, argv):
			if(len(argv) < 2):
			print("Usage : " + argv[0] + " port [IP]")
			sys.exit()
			self.__port = int(argv[1])
			if len(argv) == 3:
			self.__host = argv[2]
			else:
			self.__host = "0.0.0.0"
			self.__connect()

			def __connect(self):
			print("Connecting to server (" + self.__host + ":" + str(self.__port) + ")")
			try:
			self.s = socket.socket()
			self.s.connect((self.__host,self.__port))
			except:
			print("Error while connecting.")
			sys.exit()
			print("Connected. Press Ctrl-C to quit.")

			def send(self, nmeaString):
			try:
			self.s.send(bytes(nmeaString, 'ASCII'))
			except Exception:
			print
			print("Error while sending NMEA message: %" % Exception)
			self.terminate()

			def close(self):
			print("Disconnected.")
			self.s.close()

			def terminate(self):
			self.s.close()
			print("Done.")
			sys.exit()

			#
			# Code for testing classes
			#

			if __name__ == '__main__':

			import time, random
			#sys.path.append ('../lib')
			#from nmeaSender import *
			from nmea0183 import DPT

			nS = NmeaSender(sys.argv)

			while 1:
			nS.send(DPT().encode(str(random.randint(5,10)), '0.7'))
			try:
			time.sleep(1)
			except:
			nS.terminate()

			# EOF