Watts voltage x current so in raw terms the pi zero w at idle will use 0 6w however that ignores any power loss in the psu converting from mains electricity to the 5v needed by the pi zero w.
Raspberry pi zero w power consumption watts.
Yesterday my post comparing the raspberry pi zero s power consumption to other pis hit the hacker news front page and commenters there offered a few suggestions that could be used to reduce the power draw even further including disabling hdmi changing the overclock settings and futzing with the lone act led.
On november 26 the raspberry pi foundation announced the raspberry pi zero a 5 usd computer that shares the same architecture as the original raspberry pi and a b models with a slightly faster processor clock 1 ghz 512 mb of ram and sans many of.
I m seeing power consumption a little higher than your measurements but this may depend on if you re booting to a cli or desktop and what networking you are using.
802 11 b g n wireless lan.
I will be adding power consumption statistics to this page as time goes on.
Assuming 80 efficiency that s still only 0 75 watts which works out as 6 5kwh for a whole year which would cost you roughly 80pence for a whole year in the uk.
The biggest issue i see with this increased power consumption is the additional heat.
The recommended amount is between 700ma for a raspberry pi model a and up to 2 5a for a raspberry pi 3 model b see power supply requirements in the magpi issue 56 page 39.
The raspberry pi zero uses about the same amount of power as the a and at least 50 less power than any other pi b 2 b 3 b.
Launched at the end of february 2017 the pi zero w has all the functionality of the original pi zero but comes with added connectivity consisting of.
The raspberry pi zero w extends the pi zero family.
The raspberry pi zero is a fantastic miniature version of the raspberry pi that shrinks the board.
On all models of raspberry pi since the raspberry pi b 2014 except the zero range there is low voltage detection circuitry that will detect if the supply voltage drops below 4 63v 5.
Especially if you put this pi 4 in the official pi 4 case with zero ventilation.
I use the powerjive usb power meter for older pis with micro usb power inputs or the satechi usb c power meter for the pi 4 and newer to measure power consumption with the dramble and individual raspberry pis in all cases with nothing plugged into usb unless otherwise noted.
The raspberry pi boards typically draw much lower amounts between 200 and 500ma.
