Assess power consumption

washed / drempelbox

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Assess power consumption #6

Open washed opened 9 months ago

washed commented 9 months ago

I think we should have a rough idea which subsystems use what power in a few typical situations. This would help us to optimize at the right place if we need to.

tmh-alex commented 9 months ago

Setup

raspi supplied by battery (optimistic 37 Wh capacity)
USB audio interface connected
no user processes except ssh running (other than OS)

Results

Battery lost 23 % charge after 9.5 h uptime
Roughly 180 mA average consumption

tmh-alex commented 9 months ago

Good source for power saving possibilities on the raspi: https://raspberrypi.stackexchange.com/a/133854 The user also linked this, this and this quite useful pages. Also proposed addon boards such as as Sleepy Pi and Witty.