Reducing power consumption for paired devices

[Dan K.]

Hello,

I have an application in which a BLE peripheral device will be essentially permanently paired with a client. The client will need to connect infrequently with the server, but it could require a connection at any random time. As I understand, the server must be awake and advertising at all times to be visible to the client, even though the two may be paired and bonded. Is this correct?

It is important to minimize the power consumption of the BLE server. Given the above requirement, is my only strategy for power reduction to change the advertising interval? Should I also reduce transmit power, as well, if I know the client will always be within a short range?

Any advice would be greatly appreciated.

[Susheel Nuguru]

Hi Dan,

You are right, changing advertisement interval and transmit power is the way to reduce the power consumption. If you make your server advertise slow enough, it would make a huge difference with power.