Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Vignesh R — Fri, 02 Dec 2022 15:58:44 GMT

Sorry for the late response, went on to work with other things and came back at power measurement today ,

Not yet tried those steps recommend by Hung, will try them out and get back soon.

Thanks

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Joakim Jakobsen — Wed, 16 Nov 2022 19:16:52 GMT

Thanks.

And you tried all the suggestions from Hung in the ticket you linked to?

It seems that we forgot to turn off some of the peripheral inside the bootloader before switching to the application. Could you try adding NRF_CLOCK->TASKS_HFCLKSTOP=1; NRF_UART0->TASKS_STOPRX= 1; after you disable mesh and check if the current is dropped down to few uA. Please also check if you still can do DFU after you wake up. 15uA is still high, I'm not sure why your board has that number. Please try to test put CPU to sleep without initialize mesh or before doing anything in main().

Br,
Joakim

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Vignesh R — Wed, 16 Nov 2022 13:32:34 GMT

yes iam using the light_switch_client

I have added only the timer and its handler to enable and disable mesh mentioned above, no additional changes

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Joakim Jakobsen — Wed, 16 Nov 2022 13:21:17 GMT

Thanks.

Are you using the light switch client example as is from the SDK?

Or have you made any other modifications except the one you mentioned in the original post?

Br,
Joakim

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Vignesh R — Tue, 15 Nov 2022 13:33:53 GMT

It takes 4 micro amps when mesh is not initialized

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Joakim Jakobsen — Tue, 15 Nov 2022 12:58:40 GMT

Thanks!

No I haven't reproduced the issue on my end.

Can you try to put the CPU to sleep without initialize mesh or before doing anything in main()? And check what the power consumption is.

Br,
Joakim

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Vignesh R — Tue, 15 Nov 2022 08:59:15 GMT

I have used the v5.0 mesh sdk.

rtt_log and few timers were enabled in the example by default, does that make a significant difference??

could u able to replicate the scenario using the light_switch_client example and a timer to enable and disable mesh??

RE: Disabling nrf_mesh and entering sleep mode to get low power consumption in nrf5_mesh_sdk

Joakim Jakobsen — Tue, 15 Nov 2022 07:39:54 GMT

Hi.

[quote user=""]The problem is iam getting avg.650micro amps when the mesh is disabled[/quote]

I understand. You should be able to see lower values. Which version of the nRF5 SDK for Mesh are you working with?

Did you also check that you disabled any peripherals that might have been left enabled?

Br,
Joakim