nrf52832 sleep power consumption

[rozpruwacz]

What is expected power consumption of the nrf52832 chip when sleeping with MySensors library ? My measurements shows around 17uA @ 3.3V. For the reference I flashed some dummy program with just __WFE call and the current consumption is around 1uA.

[Omemanti]

@rozpruwacz seems about what I get aswell. I get 18 /19 uA on my boars with a si7021 and am612 PIR sensor.

However, I have not yet looked at lowering this for instance with dc/dc mode.

Also I don't know what and how a wdt (really don't have a clue how to use it) would work and impact the consumption.

But all things considered, my nodes are powered with 3 AAA batteries, that would take it past 5 years.

[rozpruwacz]

@omemanti said in nrf52832 sleep power consumption:

am612

hmm, according to am612 datasheet the pir itself consumes around 15uA, so I would say that You have much better sleep current. Can You share your sketch ?

[Omemanti]

@rozpruwacz o really, yeah me I guess .
I'm on my phone atm, but a similar sketch should be in my openhardware.io projects. (Have been playing around with it, but those where minor changes)