Nearly all PCs can be turned on with the function "Wake on LAN". Any computer sends a short specific message over the network to switch the computer on (for example with the Linux command etherwake). Is this also possible with the "Arduino Yun".
For example if I shut down / power off the Yun with the Linux command "poweroff" or "shutdown -h now" (e.q. over ssh).
And later I want to turn on the Yun again with "Wake on LAN", e.q. with the Linux command "etherwake" on my personal computer.
Although 1.5 W is not a lot of power for projects connected to mains electricity, it would be great to cut down power consumption for projects running off solar.
One general way to do this is to shut off the power supply to the Arduino when it is not needed, e.g.:
To save power we need focus on AR9331 side since it use more than 90% of power. However it is not design for battery power device. We have not much waay to save power here. Use different chip set is only way to go.