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Xinyuan-LilyGO / LilyGO-T-A76XX

LilyGo A7670X A7608X SIM7670G series
MIT License
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A7670E GPS powers down randomly #154

Closed kgmuzungu closed 1 week ago

kgmuzungu commented 1 month ago

At random moments GPS powers down (AT+CGNSSPWR? results in AT+CGNSSPWR=0). When it goes down it also looses the location and takes some seconds to come up again. This is highly annoying.

This event is accompanied by the following sequence. This sequence occurs long (40sec or more) after initialization. *ATREADY: 1

+CPIN: READY

SMS DONE

+CGEV: EPS PDN ACT 1

Any clue @lewisxhe whats the cause or how to fix it?

kgmuzungu commented 1 month ago

Actually, I only recognize it now, this sequence, see below, is occasionally interrupting TCP connections! Causing them to fail.

*ATREADY: 1

+CPIN: READY

SMS DONE

+CGEV: EPS PDN ACT 1

PB DONE

any clue?

lewisxhe commented 1 month ago

There is no good way. Currently, you can only check whether GPS is turned on during operation. If it is not turned on, turn it on again, just like the example

https://github.com/Xinyuan-LilyGO/LilyGO-T-A76XX/blob/e90f156f7b1ec4f3f0d18c165eaaec192f8bf59a/examples/GPS_NMEA_Output/GPS_NMEA_Output.ino#L131

kgmuzungu commented 1 month ago

what an advice 🤦‍♂️ . or the device could send a postcard with its location, right?

github-actions[bot] commented 3 weeks ago

This issue is stale because it has been open for 30 days with no activity.

github-actions[bot] commented 1 week ago

This issue was closed because it has been inactive for 14 days since being marked as stale.