Instructables

Coin Segregation Designs - Can anyone Help?

hey Guys... Need your advise on this.
from coin slot to coin segregation, so what do you think?

- I plan on using ARDUINO UNO
- Mainly i have thought of 2 Designs on how to do the separation of coins when it comes out of the coin slot. I have included images so you can see the my ideas.

- for the 1st one (three shutters in alignment with the path of the coin), when a specific coin is detected the corresponding shutter will open.
- for the 2nd one (using One Motor), when a specific coin is detected it rotates to a specific and programmed angle.

- p.s. it would be most efficient if anyone can suggest how can i make the shutters in the first design reverse rotate to set it back into position.
- What do you think is more Economical, Efficient, and above all much easier to do of the two?

- Need your suggestions/advise/comments/recommendations on this. What do you recommend on the 2 designs?
- if so, what motors can i use?


Picture of Coin Segregation Designs - Can anyone Help?
DCoinS2.jpg
quatch2 years ago
Have a look at this http://www.youtube.com/watch?v=nTNdE72Lns4

There are a bunch of rotating sorters like this floating about, might be easier to homebuild than the slot you have.
quatch quatch2 years ago
As to differentianting coins, I'd stick with size. They change colour with age, and weight based on minting year (remember those news stories about machines rejecting the new $X?). Although weight is probably ok if you don't want to worry about perfection (and slug detection).

if you coin rolled down a ramp that had a series of very fine slot photointerrupters set at the heights of coins, it might work.
frollard2 years ago
The easiest way is to sort by size -- as the coins roll along if they are tall enough they are knocked into an appropriate bin (or fall through a hole to an appropriate bin).

I know you want to do an arduino project, so if you can determine the make of the coin by other sensor means (acceleration, magnetometer, mass, sound, ultrasonic, etc) -- then the 2nd (picture) option where it moves a trough is the simpler design using a servo to accurately place the trough once the coin is determined.
iceng frollard2 years ago
+1