simcom-at-sscom-dat

Power ON

AT+CGNSSPWR=1

wait 5~10 seconds 

+CGNSSPWR: READY!

GPIO Control (optinally)

AT+CGDRT=4,1
AT+CGSETV=4,1

forward GNSS Serial Port to UART3

AT+CGNSSTST=1

Check

AT+CGPSINFO
+CGPSINFO: 2234.27181,N,11353.24648,E,010625,084110.00,20.9,0.000,

OK

AT+CGNSSINFO
+CGNSSINFO: 3,08,,,,22.5711975,N,113.8874359,E,010625,084112.00,20.9,0.000,,2.08,1.15,1.74,13

OK