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