Moble phone blinky lights - wireless

This really annoys me, how do you make one of those wireless power mobile stickers, no where on the internet do they say anything about it.

I been searching for at least a schematic for years...

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randofo9 years ago
I hacked something that vibrates when a cell phone rings. Mine goes off to a relay and lights up a large Christmas penguin. I don't think you could get it to be quite sticker-sized, but probably pretty close.

You can buy the cell phone ring detector from They actually have so many they are trying to unload that they give them away when you place a large order. I think they are now 10 for $4. Every time I place an order from them I buy 10 and am slowly amassing them for something or other...
akimbo m (author)  randofo9 years ago
Thanks for the comment, do take note that i am looking for a detector that doesn't require battery power. Like the ones you see stuck to the back of a nokia phone.
Lots of those small blinky cell charms do contain a battery and they go off when exposed to any RF signal, and the nokia charms I've seen are a battery pack for the phone and most old nokias where built with out a Vibrator and you had to buy a vibrating battery pack so there was a contact make just for that on the nokia... And there is IC's made for this purpose I just can't remeber who makes them right now, but if you put your phone next to your computer speakers and call it you'll hear lot of noise so a simple detector would not be hard to develop..... But to do it with out a battery will be next to impossiable because the RF power levels of a new phone are so small (( under 600 mW and in some cases it's only a few mWatts if your close to a cell tower )) you just won't have enough power to light up the LED's .... Hope this helps ...
akimbo m (author) 9 years ago
akimbo m (author) 9 years ago