How to save BLE peripheral power after connected with nrf52840

RE: How to save BLE peripheral power after connected with nrf52840

Jared — Fri, 16 Jul 2021 11:37:50 GMT

Hi,

If you're using a SDK example, then it should be enough to just adjust MIN_CONN_INTERVAL and MAX_CONN_INTERVAL. Note that the Central is the one that does the final decision on what the connection interval should be.

Try verifying it by using the nRF sniffer

regards

Jared

RE: How to save BLE peripheral power after connected with nrf52840

kienasv — Fri, 16 Jul 2021 07:39:02 GMT

Hi Jared,

Thank you for your reply.

I try to change connection interval to 4s but not success. When I turn off peripheral, the collector know connection disconnected almost immediately. I think that it should know the disconnected state after 4s of timeout.

Can you tell me how to change connection interval to 4s?

Thanks,

RE: How to save BLE peripheral power after connected with nrf52840

Jared — Mon, 12 Jul 2021 13:42:45 GMT

Hi,

Our Online Power Profiler should give you a roughly estimate of what you could expect. The current is dependent on several factors such as supply voltage, connection interval, DCDC configuration etc.

Also, check this blog post.

regards

Jared