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I have a HAT from Waveshare which i am using only for GPS. The GPS output from minicom looks like this, it was in use for more than 4 hours straight, but nothing changed. How do I troubleshoot this?

AT+CGNSINF
+CGNSINF: 1,0,19800106002233.000,,,,0.00,0.0,0,,,,,,0,0,0,,,,                                                                                    
                                                                                                                                                 
OK
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    is the issue that there is no GPS signal? I mean, that the HAT isn't able to detect any GPS signal, because I'm sure the many GPS satellites are still there :p
    – Jaromanda X
    Commented Oct 23, 2023 at 20:58
  • sim8xx/9xx/76xx? raspberrypi.stackexchange.com/questions/113992/…
    – tlfong01
    Commented Oct 24, 2023 at 3:29
  • Which HAT ? Waveshare have several. And as @JaromandaX say, can the GPS module see a clear sky and some models need a antenna, is it connected?
    – MatsK
    Commented Oct 26, 2023 at 13:19
  • Your problem seems general, not specific to Waveshare hat. These general references might help: raspberrypi.stackexchange.com/questions/113544/…
    – tlfong01
    Commented Oct 28, 2023 at 13:30

1 Answer 1

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Are you using the module indoors or outdoors? If you are trying it indoors, please take the module outdoors. Keep the module in a location with a clear view of the sky. GPS modules usually require a direct line of sight to the sky to receive signals from satellites.

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  • It was outside the window for more than 4 hours, clear view to the sky.
    – ELWooD
    Commented Oct 24, 2023 at 11:45
  • I think you have to check if the power supply is adequate. If you find no problem at your side, I think you should contact waveshare as soon as possible. There maybe a manufacturing error. If the HAT is still within the warranty period, you may get a replacement. By the way, if you wish to make a GPS/GNSS HAT by yourself, you can see here: pcbway.com/project/shareproject/…
    – liaifat85
    Commented Oct 25, 2023 at 15:28

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