Oh man, I am going to have to make something like this.
Only, it’s WAY cheaper to do with a little PIR motion sensor, then have it trigger a relay, with a timer circuit if you want.
In fact, I could do this for free with stuff at work.
You can even make it wireless! http://cre.ations.net/creation/a-tiny-wireless-motion-sensor
Oh man, I am going to have to make something like this.
Only, it’s WAY cheaper to do with a little PIR motion sensor, then have it trigger a relay, with a timer circuit if you want.
In fact, I could do this for free with stuff at work.
You can even make it wireless!
http://cre.ations.net/creation/a-tiny-wireless-motion-sensor