Create GPS_HAT.py
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GPS_HAT.py
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62
GPS_HAT.py
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#! /usr/bin/python
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# Written by Dan Mandle http://dan.mandle.me September 2012
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# License: GPL 2.0
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import os
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from gps import *
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from time import *
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import time
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import threading
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gpsd = None #seting the global variable
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os.system('clear') #clear the terminal (optional)
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class GpsPoller(threading.Thread):
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def __init__(self):
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threading.Thread.__init__(self)
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global gpsd #bring it in scope
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gpsd = gps(mode=WATCH_ENABLE) #starting the stream of info
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self.current_value = None
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self.running = True #setting the thread running to true
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def run(self):
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global gpsd
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while gpsp.running:
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gpsd.next() #this will continue to loop and grab EACH set of gpsd info to clear the buffer
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if __name__ == '__main__':
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gpsp = GpsPoller() # create the thread
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try:
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gpsp.start() # start it up
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while True:
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#It may take a second or two to get good data
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#print gpsd.fix.latitude,', ',gpsd.fix.longitude,' Time: ',gpsd.utc
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os.system('clear')
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print
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print ' GPS reading'
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print '----------------------------------------'
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print 'latitude ' , gpsd.fix.latitude
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print 'longitude ' , gpsd.fix.longitude
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print 'time utc ' , gpsd.utc,' + ', gpsd.fix.time
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print 'altitude (m)' , gpsd.fix.altitude
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print 'eps ' , gpsd.fix.eps
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print 'epx ' , gpsd.fix.epx
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print 'epv ' , gpsd.fix.epv
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print 'ept ' , gpsd.fix.ept
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print 'speed (m/s) ' , gpsd.fix.speed
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print 'climb ' , gpsd.fix.climb
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print 'track ' , gpsd.fix.track
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print 'mode ' , gpsd.fix.mode
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print
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print 'sats ' , gpsd.satellites
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time.sleep(5) #set to whatever
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except (KeyboardInterrupt, SystemExit): #when you press ctrl+c
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print "\nKilling Thread..."
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gpsp.running = False
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gpsp.join() # wait for the thread to finish what it's doing
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print "Done.\nExiting."
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