RE: 52840 scan mode power consumption

haakonsh — Wed, 08 Jan 2020 10:06:43 GMT

For 31 bytes every 500ms, for 10 hours per device the ideal with regards to the power consumption of the receiver is a BLE connection. Though we only support 20 concurrent connections per device, so you will need two Centrals. Power consumption should be approx 300-500µA for each of two devices, having 15 connections each, at 500ms connection intervals.

You can create your own connection based RF protocol, but that will require significant development time.

BTW: the nRF52832 receiver has a current consumption of ~7mA. Is 7-8mA average current consumption for the scanner okay?

How fast do you need to get the updated device data, what latency is acceptable?
I ask because if you do not actually need updated information two times a second you can duty-cycle the scanner by setting the Scan Window and Scan Interval. A 100ms scan window and 200ms Scan Interval will use the receiver 50% of the time, cutting your power consumption in half, at the cost of missing some of the advertisements.