How might scanner influence peripheral power consumption?

RE: How might scanner influence peripheral power consumption?

Stian Røed Hafskjold — Wed, 17 Jul 2019 08:55:06 GMT

Yes, you will reach a limit. That limit will be reached when the scanners are responding to every advertising packet the peripheral sends out.

RE: How might scanner influence peripheral power consumption?

Dmitry — Wed, 17 Jul 2019 03:35:47 GMT

Hi Stian,

Thanks for reply! You've confirmed my thoughts but there is another question - is there any limit the current may reach? The experiments described in the original post resulted in power consumption saturation as the number of scanners grows. I expected this result but just want to know how it works since we have to prove to the customer that battery will work according to the product specification.

RE: How might scanner influence peripheral power consumption?

Stian Røed Hafskjold — Tue, 16 Jul 2019 11:39:05 GMT

Even though you turn off scan response in the peripheral, the peripheral still has to listen to every request that comes in, in case there is a connection request. So when you have many scanners, they will send out scan requests, and the number of RX events in the peripheral that receives data increases. When the RX event receives data, the RX is on for a longer time, and the total average current increases.