I'm planning on creating a "Magic Mirror". I have already got the UI running to my likings and my Pi-zero is on its way.
My concern is that having the mirror powered on 24/7, is not really eco-friendly. So I have also ordered a motion sensor to attach to the GPIO pins.
I wanted to wire in the monitor's power button to another set of pins but was thinking of HDMI-CEC should the monitor I will be using support this.
However, switching on a monitor at work made me realize that there is quite some delay when powering on the monitor. Is there some way to "slumber" the monitor so that it uses next to no power and is comparable to switching off the monitor while still switching on quickly?