PSM example program seems to consume high current in nRF9160 DK.

RE: PSM example program seems to consume high current in nRF9160 DK.

Yusuke — Thu, 15 Aug 2019 09:27:37 GMT

OK. I'll contact it. Thank you for your help!

RE: PSM example program seems to consume high current in nRF9160 DK.

Øyvind — Thu, 15 Aug 2019 09:24:38 GMT

Yes, this is a good indication that it does not support PSM. Have you contacted your network vendor?

RE: PSM example program seems to consume high current in nRF9160 DK.

Yusuke — Thu, 15 Aug 2019 09:19:16 GMT

>Can you please try to eject the SIM card during measurement to confirm?

floor current drops to around 5 ~ 10uA

So Does this mean this SIM doesn't support PSM?

RE: PSM example program seems to consume high current in nRF9160 DK.

Øyvind — Thu, 15 Aug 2019 08:47:06 GMT

Hello,

[quote user=""]Use a LTE-M SIM which is not iBasis one. eDRX and PSM seems to work with the SIM.[/quote]

Have you confirmed this with the vendor? The 29µA can indicate that the SIM card does not turn off. Can you please try to eject the SIM card during measurement to confirm? This should usually not be done in a normal scenario as it can cause issues with the network.

[quote user=""]- fixed code[/quote]

Thanks for pointing this out. This has been fixed in the Git repo: https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/udp_with_psm
I have notified the author of the tutorial to fix this.

Kind regards,
Øyvind

RE: PSM example program seems to consume high current in nRF9160 DK.

Øyvind — Thu, 15 Aug 2019 08:47:04 GMT

Hello,

[quote user=""]Use a LTE-M SIM which is not iBasis one. eDRX and PSM seems to work with the SIM.[/quote]

[quote user=""]- fixed code[/quote]

Kind regards,
Øyvind