Main Question or Discussion Point
The pay phones in which we have to drop the coin in and then we are able to make calls. These are often evident at railway stations and other places. Does anyone have any idea as to how they work?
Go back to google, and google coin mechanism. You will get lots of helpful hits.i do understand that they are just vending machines. Could you tell me the mechanism which is used to recognise a particular type of coin in these sort of machines. Wikipedia does not have this info. I have also tried googling it.
Ah.Go back to google, and google coin mechanism. You will get lots of helpful hits.
I do want to warn you, though, that if you are looking for ways to spoof coin-operated vending machines, you will get no further help here on the PF.
Fair enough. Okay, one of the things I noticed in the google search results that I pointed you to, and some other google searches I did with a couple other keywords added into the basic coin mechanism search, was that there were some patents listed in the hit list.I'm not trying to spoof anything. I was planning to use the same mechanism to operate a automated entry to parking lots for my minor project. I have been googling the stuff. The hits are not of much use, the mechanism is never explained enough to understand its working. Mostly it is vendors selling the stuff. Which is of no use to me.