Detecting money can be very useful for allot of people. For instance shop owners, you don't want people to buy stuff from you with fake money.
This money detector disguised as a mouse will look nice behind the counter and is very easy to use.
I got this idea when I found this mouse in some junk box upstairs. Unfortunately this mouse died... about 15 years ago.
Can you believe it, this mouse had a ball inside of it. I used these mouses allot back in the day, and I think some youngster don't even know a mouse like this did exist :)
Anyway, below you'll see a movie and some photos of the end result.
Hope this instructable is useful for you. Or at least fun to watch :)
Note: The photo below and in the movie show blue light coming from the UV LED. I think it has something to do with my camera not being able to capture UV light correctly. The UV light coming from the LED is more of a purple color.
There aren't too many materials needed to make this. Next to this the materials are pretty cheap. So it doesn't have to cost much to make this.
- Old mouse (Using a new one would be stupid. But if you feel like using a new one, be my guest) - 1x UV LED 5mm
- Button cell 3v (I used a CR2032) - Button cell holder
- Electrical wire
- Tinfoil (sorry, forgot to put this in the photo below).
- Glue gun (hot glue)
Once you've got this stuff you can start.
I've got to note that there are some parts in building this where you need to be gently and patient (that's when we're going to use the tinfoil :)