How to reduce power consumption within ble peripheral_uart demo

[Llama12580]

I have customed my own nrf54l15 board and run peripheral_uart demo successfully. Then I tried to measure its current while running peripheral_uart demo, it was up to almost 1mA.

So, how to reduce power consumption to make it becomes low-power device? Shall I add some configurations? Or are there any demo about low-power mode?

[SwRa]

Hi Barry,

To reduce the power consumption, there are a few things that you could try.. This includes:

Disabling serial logging: It is enabled by default for debugging purposes.  Add CONFIG_SERIAL=n to your project configuration file. This allows the device to enter sleep mode between activities, dramatically reducing power consumption.
Using power management: Enable power management by adding CONFIG_PM=y and CONFIG_PM_DEVICE=y to your configuration.
Optimizing UART usage: Only enable the UART when it's needed. When there's no data transmission, consider closing the UART using app_uart_close().

 

Or are there any demo about low-power mode?

We have the low power UART sample here that you could use: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/peripheral/lpuart/README.html which is supported for the nRF54L15 as well.

Regards,

Swathy