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. To help preserve battery, perhaps disable unneeded services.
Yocto 3.5:
| Activity | Power (mW) | voltage | current (mA) |
|---|---|---|---|
| booting up (peak) | 820 | 5.09 | 160 |
| 100-150% 1 CPU + Wifi | 967 | 5.09 | 190 |
| 50-100% 1 CPU + Wifi (curl https) | 820 | 5.09 | 160 |
| 5% 1 CPU + heavy disk write | 561 | 5.10 | 110 |
| idle | 410 | 5.12 | 80 |
| powered off (LED only adapter board) | < 51 | 5.12 | < 0.01 |
Yocto 3.0
| Activity | Power (mW) | voltage | current (mA) |
|---|---|---|---|
| booting up (peak) | 944 | 4.97 | 190 |
| using Wifi (opkg update) | 803 | 5.02 | 160 |
| idle | 455 | 5.05 | 90 |
| powered off (LED only adapter board) | < 51 | 5.12 | < 0.01 |
Yocto 2.1
| Activity | Power (mW) | voltage | current (mA) |
|---|---|---|---|
| booting up (peak) | 984 | 8.2 | 120 |
| using Wifi (opkg update) | 680 | 8.5 | 80 |
| typing text (using serial port) | 346 | 8.65 | 40 |
| idle | 88 | 8.8 | 10 |
| powered off (LED is on adapter board) | 45 | 8.9 | 5 |
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. Lkely 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.
The Edison draws far less power at idle, perhaps 1/20 the power of the Raspberry Pi 3+ at idle.