Python script to connect to a GPSD daemon and print the latest coordinate datapoints to the console.

gps_continuous.py

###############################################################
# File: gps_continuous.py
# Description:  Connect to a GPSD daemon and print the latest
#               coordinate datapoints to the console.
#
# Author:   Carlos Garcia-Saura (@CarlosGS) - 2018
# Modified by: Author (email) - year
###############################################################

import gpsd
import time

gpsd.connect() # No arguments = local GPSD daemon

prevTime = 0

while True:
    res = ""
    try: # Poll the GPSD daemon for the latest data
        packet = gpsd.get_current()
        
        # Check the timestamp and discard duplicate points
        if packet.time == prevTime: continue
        prevTime = packet.time
        
        res += str(packet.mode) + ","
        res += str(packet.sats) + ","
        
        if packet.mode >= 2: # 2D position locked
            res += str(packet.lat) + ","
            res += str(packet.lon) + ","
            res += str(packet.track) + ","
            res += str(packet.hspeed) + ","
            res += str(packet.time) + ","
            res += str(packet.error['c']) + ","
            res += str(packet.error['x']) + ","
            res += str(packet.error['v']) + ","
            res += str(packet.error['t']) + ","
            res += str(packet.error['s']) + ","
            res += str(packet.error['y']) + ","
        
        if packet.mode >= 3: # 3D position locked
            res += str(packet.alt) + ","
            res += str(packet.climb) + ","
    except:
        res += "Initializing... "
    res += str(time.time())
    print(res)
    
    time.sleep(0.5)