I'm trying to build a mobile device testing rig to hold 10 tablets.
The tablets should be constantly charging via USB cables plugged into a power strip, but when I publish new content to the devices (via a specialized wifi app) I want to walk over to the rig, flip a switch and begin a continuous power cycle (off/on every 10 seconds) that will wake the devices and keep them awake while I'm standing there. When finished I want to flip the switch off to end the power cycle and continue normal power to the devices.
I've seen short-cycle timers like this (http://www.amazon.com/Digital-734170-Short-Cycle-Timer/dp/B00AKEOQWE/ref=sr_1_1?s=hi&ie=UTF8&qid=1439664239&sr=1-1&keywords=short+cycle+timer) that could potentially do the trick, but it's not quite there.
Any suggestions appreciated!