About current consumption. (when it’s use blue-image-transfer-demo)

[eye]

Hello,

I’m trying use nrf-blue-image-transfer-demo with nRF52840-DK.

https://github.com/NordicPlayground/nrf52-ble-image-transfer-demo/tree/master/pca10056

I use to power the nRF52840 with a 3.3V at the VIN3-5V.(*)

When it use VIN3-5V, consumption current is about 220mA.

I want to reduce unnecessary current consumption, so I do not want to use unnecessary functions.

In order to improve efficiency, if there are good features to reduce, would you give me some advice?

Best regards.

Eye

* I’d like to use a eternal supply if possible. But I omit it, because I have another topic.

https://devzone.nordicsemi.com/f/nordic-q-a/46307/how-to-use-nrf52840-dk-with-an-external-power-supply

[Jared]

Hi,

The nrf52-ble-image-transfer-demo available on Github isn't power optimized and thus expected to draw significant more power than other examples. I assume that the additional current consumption comes directly from the camera modul, I therefore think that any significant power savings would come from optimizing that module. Unfortunately, the demo is at the right moment not officially supported as it's part of the Nordic-Playground repository. Which means that any optimizing of code is something that you would have to do yourselves. 

Best regards

Jared 

[eye]

Hi,

Thank you for your reply.

I understand.

Consider the introduction of the Power Profiler Kit in conjunction with the investigation of the camera module.

This issue is considered a solution.

Best Regards.

eye