Finally kicked off with the project long dreamt. Automated locking system, cuz we’re too lazy to go up to the door to open it.
The first thing I had on my mind was to use an electromagnet as the armature to lock and unlock. And electromagnets do NOT work on AC… So, I had this brilliantly stupid idea of using the phone adapter.
…to substitute a battery. So what I did was…
…this!.. 😀 So, I plug the adapter into the socket. Control!… Where’s the control for the experiment?!.. After a bit of scrounging through a pile of crap, I find this bulb, rated 250 V 10 W!.. I know this is not even close to a sensible choice to check for a 375 mA output!.. Why not just give a try?… And the outcome?…:D
So, after some more of scrounging, I now find a clock. An alarm clock.
I pluck the batteries out and connect the terminals. 😐 No surprise. No effect. 😐
Frustrated, I try touching the terminals… 😀 😐 No surprise, no effect again!
And short circuiting?… FAIL…
Can’t stand this anymore. SLEEP… zz z z zz zzz zzz
P. S.: http://www.instructables.com/id/Using-a-DC-Adapter-as-a-Battery/ Why no me?… 🙁