Power consumption on BLE ON OFF

RE: Power consumption on BLE ON OFF

Ole Bauck — Wed, 13 Jul 2016 12:59:48 GMT

I am talking about average current consumption. Peak current consumption can be up to 10mA, but if you have connection or advertising interval of say 1 sec the average current consumption will be very small. You need a power analyzer or oscilloscope (and shunt resistor) to see the current consumption during connection/advertising events, a multimeter will not be fast enough to register the current consumption during the events.

RE: Power consumption on BLE ON OFF

Thangaraj — Wed, 13 Jul 2016 12:54:20 GMT

21.3 Electrical Specification in the Radio Module of NRF52 specifies TX alone consume more than 7.2 mA .. but you say less than 1mA . What I have mentioned is not the power consumed by NRF52 alone, Ours is a Smart Watch .. Specified is total power consumption

RE: Power consumption on BLE ON OFF

Ole Bauck — Wed, 13 Jul 2016 11:00:45 GMT

49.33mA is above what is possible with the nRF52. When in a connection or advertising you should normally see less than 1mA average current consumption. You are sure that the change is not so small that you don't register it? What connection parameters and advertising interval do you use? You can check the estimated current consumption with this online tool.

RE: Power consumption on BLE ON OFF

Thangaraj — Wed, 13 Jul 2016 10:34:20 GMT

In both case BLE OFF and BLE ON , system current consumption is 49.33 mA , In my case I am only switching off my BLE other peripherals are up and running.

RE: Power consumption on BLE ON OFF

Ole Bauck — Wed, 13 Jul 2016 09:45:34 GMT

There is no need to do anything with the RADIO peripheral, if you are not advertising or connected and sleeping while not doing anything else you should see a current consumption of a couple of uA. What is your current draw?