SparkFun LG290P no Latitude & Longitude data.

GPS/GNSS Development Boards
1

I’ve recently bought the SparkFun Quadband GNSS RTK Breakout - LG290P (Qwiic) and the GNSS Multi-Band L1/L2/L5 Helical Antenna (SMA). I’ve successfully connected it to a KeeYees ESP32S ESP32 Development Board and I’ve ran the provided Position.Velocity.Time.ino example:
11:17:54.769 → ��������������������!��@30078000,len:13964
11:17:54.769 → load:0x40080400,len:3600
11:17:54.769 → entry 0x400805f0
11:17:55.005 →
11:17:55.005 → SparkFun LG290P Position, Velocity, Time example
11:17:55.005 → Initializing device…
11:17:55.037 → LG290P detected!
…
11:31:56.583 → Date Time Latitude Longitude Altitude Speed North East Down Sat SIV Fix-Quality HDOP PDOP Leap Sep
11:31:56.618 → ------------------------------------------------------------------------------------------------------------------------------------
11:31:56.618 → 18/06/2025 16:31:56 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:31:57.605 → 18/06/2025 16:31:57 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:31:58.589 → 18/06/2025 16:31:58 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:31:59.607 → 18/06/2025 16:31:59 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:00.588 → 18/06/2025 16:32:00 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:01.606 → 18/06/2025 16:32:01 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:02.590 → 18/06/2025 16:32:02 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:03.604 → 18/06/2025 16:32:03 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:04.585 → 18/06/2025 16:32:04 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:05.606 → 18/06/2025 16:32:05 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:06.589 → 18/06/2025 16:32:06 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:07.610 → 18/06/2025 16:32:07 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:08.591 → 18/06/2025 16:32:08 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:09.607 → 18/06/2025 16:32:09 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 11 No-Fix(0) 99.99 99.99 0 0.00
11:32:10.596 → 18/06/2025 16:32:10 0.00000000 0.00000000 0.00 0.00 0.00 0.00 0.00 0 10 No-Fix(0) 99.99 99.99 0 0.00
Could you please tell why after 15 minutes being outdoors and with 11 satellites in view, it still is not displaying the Latitude and Longitude data? May the SparkFun LG290P (or the antena) be damage or malfunctioning? Does a “cold start” take more than 15 minutes? How can I make it properly run it?

Thanks-a-million for any information in this regard!

Luis

2

immagine
immagine507×121 2.52 KB

If trouble open a comm. terminal (perhaps need usb or ttl conv)
and send

$PQTMRESTOREPAR*13
$PQTMSAVEPAR*5A

reboot

1 Like
3

bamarcant, I’ve followed your recommendation (step-by-step) and now I’m getting the Latitude and Longitude data. Thank you SO much! :slight_smile:

By the way, whenever you have a minute, could you please elaborate your response a bit further? Specifically, what are the two commands about? Maybe, other team members can benefit from your response as well. Thank you again!

Luis

4

Hi Luis, these are quectel commands here the v1 spec
and here the latest docs & fw. and here
after pqtm restore par the module default in rover mode…
pqtm prefix refers to quectel comm.
par suffix derive from Airoha pair comm. and remained into …
…restores the parameters (Clear the current configuration and restore the default settings)
Regards
Marco

5

Thank you again! I’ll keep those links in my records.

Luis

1 Like