Hi, i am working on project which has this operation of coin drop in washing machine. but i am not able to get any information on web regarding this .

Can any body help me out that The COIN DROP circuit works, what are the interfaces and all.

Thanks

 

Google these manufacturers.
Coinco
Munzprufer
Airpax
Greenwald

There are lots of different types and technologies from the simple (coin rolls over a switch) to sophisticated (microcontroller based with networking / data protocols etc).

 

Thanks,
Is there is any thing like schematic for a controller based design of a coin drop circuit, and details for the same

 

Thanks,
Is there is any thing like schematic for a controller based design of a coin drop circuit, and details for the same

Yes as the engineer thats what YOU are supposed to design.. If its out of your realm hire someone who can. Just copying someone elses work is asking for trouble.

 

There not that hard to figure out how they work dryer and washer most just take quarters
most washers you load 4 to 8 in a rack and if there right it will trip the wash timer

Here a video of a dryer that I made the whole board for it counts quarters
http://www.youtube.com/watch?v=8P8Qbun1_LM&feature=share&list=UUPmheWolpf9TGX-D7ch_FTw