RE: nRF Mesh power consumption

Elfving — Thu, 28 Oct 2021 10:34:02 GMT

Hey Lubomir!

1. I would say that the Mesh SDK is as power efficient as nrf5 SDK, but Mesh in general isn't. Relay and heavy radio use is the backbone of it, which means it generally won't be low power. I would say that for mesh to pay off, you would need at least one of the nodes to be connected to the power grid itself.

2 & 3. Yes, what you can do is to use low power nodes and friend nodes. The low power nodes won't be using the radio as much, and can even be turned off for a period of time, which allows them to have a low power consumption. There are several important messages going through the Mesh network however (network keys, IVI update, etc), that the LPN would need. The friend node can store these in the meantime, and provide them to the it has a friendship with when the LPN requests them.

For more info, see here.

Best regards,

Elfving