try gpx log

gps_driver_v2.py

@@ -16,6 +16,9 @@ class GpsIO:
     def init_line(self,timeout=1.0):
         self.ser = serial.Serial('/dev/ttyS0',timeout=timeout)
 
+    def init_line_devname_baudrate(self,devname,baudrate,timeout=1.0):
+        self.ser = serial.Serial(devname,baudrate=baudrate,timeout=timeout,xonxoff=False, rtscts=False, dsrdtr=False)
+        
     def close(self):
         self.ser.close()
 

tst_gpx.py

+import time
+import sys
+import gps_driver_v2 as gpsdrv
+
+def cvt_gll_ddmm_2_dd (st):
+    sts =st.split(" ")
+    stlat = sts[0]
+    stlon = sts[2]
+    stlats = stlat.split(".")
+    stlons = stlon.split(".")
+    lat = double(stlats[0][0:len(stlats[0])-2])
+    lon = double(stlons[0][0:len(stlons[0])-2])
+    print (lat,lon)
+
+gps = gpsdrv.GpsIO()
+# debug with USB GPS
+gps.init_line_devname_baudrate("/dev/ttyUSB0",9600)
+
+tmax = 25.0
+t0 = time.time()
+while True:
+    print ("---------------------------------------------------")
+
+    # test GPS
+    gps_data_string = gps.read_gll()
+    print ("GPS:",gps_data_string)
+
+