Measured power consumption of Intel Edison

The Intel Edison power draw was measured while using the Mini Breakout Board.

Yocto 3.0 has PulseAudio, BlueMan, XDG, etc. running in the background; this brings the idle current up 5 times as much as Yocto 2.1. One looking for battery power would perhaps disable these unneeded services.

Yocto 3.5

ActivityPower (mW)voltagecurrent (mA)
booting up (peak)8205.09160
100-150% 1 CPU + Wifi9675.09190
50-100% 1 CPU + Wifi (curl https)8205.09160
5% 1 CPU + heavy disk write5615.10110
idle4105.1280
powered off (LED only adapter board)< 515.12< 0.01

Yocto 3.0

ActivityPower (mW)voltagecurrent (mA)
booting up (peak)9444.97190
using Wifi  (opkg update)8035.02160
idle4555.0590
powered off (LED only adapter board)< 515.12< 0.01

Yocto 2.1

ActivityPower (mW)voltagecurrent (mA)
booting up (peak)9848.2120
using Wifi (opkg update)6808.580
typing text (using serial port)3468.6540
idle888.810
powered off (LED is on adapter board)458.95

Benchmarks http://www.davidhunt.ie/raspberry-pi-beaglebone-black-intel-edison-benchmarked/ of Raspberry Pi vs. Beaglebone Black vs. Intel Edison.

The Intel Edison spec sheet shows the idle power with Wifi as 35 mW, while my measurement is 88 mW. I think likely sources for my “high” power reading are the two bright green LEDs on the USB adapter board, and the switching power conversion from 9 V to 1.8 V. I would expect the discrepancy to be less than observed, but my observation/measurement method may be faulty as well.

The fact remains that the Edison draws far less power at idle, perhaps 1/20 the power of the Raspberry Pi 3+ at idle.