SIM7000A modem.getTime Stopped Working

rrrrpa
Newbie

Posts: 32

SIM7000A modem.getTime Stopped Working Mar 25, 2024 23:00:56 GMT

Quote

Post by rrrrpa on Mar 25, 2024 23:00:56 GMT

For an unknown reason
modem.getTime(timeBuffer, 23); // make sure replyBuffer is at least 23 bytes!
has stopped working. It was operational for several weeks, then one day when I reloaded my application sketch it quit.
I have tried everything I know to reset the SIM7000A. I have also uploaded the LTE_Demo code and it too has the problem.
I thought that maybe the cell tower has a problem so I went to a distant location and it still behaves the same on a different tower. Then I went to another location
that is ROAMING (ATT) and it too has the problem. The typical reply is:

15:52:15.416 -> Requesting Network Info

15:52:15.535 -> Sys Info --->+CPSI: LTE CAT-M1,Online,310-260,0x411F,21294086,47,EUTRAN-BAND12,5035,2,2,-9,-84,-61,15

15:52:15.633 -> Operator --->+COPS: 0,0,"T-Mobile",7

15:52:15.700 ->

15:52:15.700 -> Requesting Network Status

15:52:15.732 -> My Network status = 1 -> Registered (home)

15:52:15.764 ->

15:52:15.764 -> Requesting Network Strength / RSSI

15:52:15.834 -> RSSI = 26 -> -62 dBm

15:53:17.240 -> Requesting Network Time

15:53:17.306 -> Time = "80/01/24,02:10:53+00"

Any help will be appreciated.

Botletics Administrator Posts: 117	SIM7000A modem.getTime Stopped Working Mar 27, 2024 12:53:27 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Botletics on Mar 27, 2024 12:53:27 GMT Are you using `modem.enableRTC(true);` to enable time sync in setup()?

rrrrpa
Newbie

Posts: 32

SIM7000A modem.getTime Stopped Working Mar 31, 2024 3:20:11 GMT

Quote

Post by rrrrpa on Mar 31, 2024 3:20:11 GMT

No, I was not. I used LTE_Demo as a model and it does not use it either and the demo WAS also working for the longest time.
Is modem.enableRTC(true) absolutely required?
If yes, why were both sketches working for many weeks?

I added modem.enableRTC(true); to setup. Now I'm even more baffled!
My sketch executes modem.getTime(timeBuffer, 23); about every 60-seconds.
Initially modem.getTime(timeBuffer, 23); did not work.
Then, 58-minutes after loading the updated sketch it started working!!!!!
What can possibly be going on?

18:33:39.782 -> Initializing....(May take several seconds)
18:33:47.257 -> Configuring to 9600 baud
18:33:48.405 -> Found a modem
18:33:48.405 -> Modem is OK
18:33:48.437 -> Found SIM7000
18:33:48.469 -> Module IMEI: 865235033194750

19:29:51.881 -> Beginning Every 1-Minute Processing **********************************
19:29:52.029 -> Sys Info --->+CPSI: LTE CAT-M1,Online,310-260,0x411F,21294086,47,EUTRAN-BAND12,5035,2,2,-12,-86,-61,18
19:29:52.160 -> Operator --->+COPS: 0,0,"T-Mobile",7
19:29:52.233 -> My Network status = 1 -> Registered (home)
19:29:52.336 -> RSSI = 26 -> -62 dBm

19:29:52.499 -> Requesting Network Time
19:29:52.569 -> Time = "80/01/06,01:27:29+00"

19:31:35.182 -> Beginning Every 1-Minute Processing **********************************
19:31:35.334 -> Sys Info --->+CPSI: LTE CAT-M1,Online,310-260,0x411F,21294086,47,EUTRAN-BAND12,5035,2,2,-8,-85,-64,18
19:31:35.473 -> Operator --->+COPS: 0,0,"T-Mobile",7
19:31:35.551 -> My Network status = 1 -> Registered (home)
19:31:35.627 -> RSSI = 26 -> -62 dBm

19:31:35.792 -> Requesting Network Time
19:31:35.863 -> Time = "24/03/30,19:31:34-28"

SIM7000A modem.getTime Stopped Working

Post by rrrrpa on Mar 25, 2024 23:00:56 GMT

Post by Botletics on Mar 27, 2024 12:53:27 GMT

Post by rrrrpa on Mar 31, 2024 3:20:11 GMT