Power Consumption when using Mesh Light Switch Example on nRF52840 Custom board

RE: Power Consumption when using Mesh Light Switch Example on nRF52840 Custom board

Mttrinh — Thu, 03 Jun 2021 12:26:32 GMT

Hi,

No, I don't think 20 mA power consumption is normal in Mesh. Like I said it seems a bit high, If you like to reduce the power consumption as low as possible then the LPN example is the way to go.

[quote user="Mahesh kumar"]which consumes about 8 mA[/quote]

How did you measure the consumption, is this during scanning?

Have you established a friendship with a friend node?

The point with a LPN, is that the node should be asleep most of the time and wake up periodically to poll messages from a Friend node. The average sleep current(idle) is much lower.

Read more about the Low Power node feature here.

RE: Power Consumption when using Mesh Light Switch Example on nRF52840 Custom board

Mahesh kumar — Wed, 02 Jun 2021 12:24:37 GMT

[quote userid="15475" url="~/f/nordic-q-a/75803/power-consumption-when-using-mesh-light-switch-example-on-nrf52840-custom-board/312912#312912"]It seems to be a bit high[/quote]

Do you mean it is normal to have 20 mA power consumption in BLE Mesh?

[quote userid="15475" url="~/f/nordic-q-a/75803/power-consumption-when-using-mesh-light-switch-example-on-nrf52840-custom-board/312912#312912"]Do you have DC-DC enabled on your board?[/quote]

Yes, i have enabled on my board.

Do you have any solution to reduce power consumption other than low power node example(which consumes about 8 mA).Which is also very high for my application. My board runs on 3V coin cell battery.

RE: Power Consumption when using Mesh Light Switch Example on nRF52840 Custom board

Mttrinh — Tue, 01 Jun 2021 13:50:34 GMT

Hi,

It seems to be a bit high, could you try testing with a DK as well?

Do you have DC-DC enabled on your board? This should reduce the current consumption.

Just note that using Bluetooth Mesh causes higher power consumption than traditional Bluetooth low energy applications. This is mainly due to the need for keeping the radio running constantly.