Power Consumption of a Central & Peripheral device

RE: Power Consumption of a Central & Peripheral device

Sigurd — Tue, 29 Nov 2016 15:39:02 GMT

Yes, the central can sleep(System-On) between the connection interval, using only a few µA.

RE: Power Consumption of a Central & Peripheral device

garypty — Fri, 25 Nov 2016 03:01:48 GMT

I have the tools for measuring current on the DK board (a digital storage oscillator with differtial probe), but I want to estimate (or have an idea) of the current consumption before I developed the application. For example, if I set the connection interval to 500ms, can I assume that the Central device can also sleep (System-On) in between the 500ms connection interval? It is because in my application, if I can assume it can sleep (in uA) in between the connection interval, the power consumption of the BLE part will be insignificant.

RE: Power Consumption of a Central & Peripheral device

Sigurd — Thu, 24 Nov 2016 15:48:21 GMT

At the current time you can calculate the current consumption for advertising and peripheral connections, but not central connections.

So if you want find the current consumption for a device with both central and peripheral roles you will have to measure it. For this I recommend buying the Power Profiler Kit. You can read more about it at the product page, and in this blog post.