connectivity of gps to the pixhawk.

General
1

I have connected GPS GEPRC GEP-M1025-DQ to the pixhawk B cube 2.4.8 and trying to get the data to the mission planner, but the gps is not getting connected so i want to know that which parameters we have to set on the mission planner. I set the gps parameters which are correct and the connections are correct my old gps GEP M10 DQ is connecting successfully but GEPRC GEP-M1025-DQ is not connecting.

2

What does it say?
No gps or no fix?

If it’s no fix, put it outside for like 5minutes.

If it’s no gps, then pls recheck the wiring and ensure that the gps is getting 5v using a multimeter. Set the gps port protocol as gps and set the parameters properly as mentioned by the wiki.

Also pls send your param file

3

I have two GPS 1. GEPM10DQ which works properly with same parameters but
when i connect 2.GEP M1025-DQ with same parameters and both having same wiring diagram but showing No GPS when i change parameter of GPS_TYPE setting 2 which is NMEA which gives me 12+3 sattelites but the no of satellites does not increase and i have changed firmware and tried 4.7, 4.6, 4.5.7
when I check the GPS with ESP for testing it gives values in NMEA but it actually require ublox
I thought GPS is faulty but i have 2 new GEPM1025DQ GPS giving me same issue
(i dont know the exact this is the exact file of parameters)

GPS_PARA.param (16.9 KB)

4

Looks like you have everything configured correctly.

I agree with @Ishitbh…I would double check condition of all wiring and pins.

5

Your description of the error is still quite unclear to me. You state that you see a “No GPS” message, yet you apparently also see an indication of 12+3 satellites. So, which is it—do you get “No GPS” or “No Fix”? As previously mentioned, there is a significant difference between these two scenarios. Without a precise and unambiguous description of the error, remote diagnosis is very difficult.

6

There is no gps.

7

Please use a little more words. I can’t read your thoughts.
So I understand now you get a message “No GPS” on Mission Planner HUD. But I don’t know under which conditions and on which test.
How much GPS receiver do have connected?
Which GPS receiver is connected to which Serial Port?
Why you defined 3 Serial Ports for GPS. I am not sure but I believe ardupilot will only use 2 GPS.
So first describe exactly your setup and tests point for point