i'm doing electronics GCSE and i'm making a coin sorter. for one of the sections we have to do an evalution of 4 different products similar to the coin sorter. I have done one on this : https://www.amazon.co.uk/Ryman-Zeon-...ds=coin+sorter but it will be very boring to do 3 more on coin sorters. could anyone suggest any different products that use the same mechanism, thanks.
... and the ones that won't