yah i t is true that nothing beats the human eye on identifying the values of the bill.. but i do not have any other choice but to build a homemade bill acceptor/validator, if i want to graduate... that is why i so need to know it's technical ups and downs...
So, for my project i were thinking to build a homemade bill acceptor using RGB sensor... so before i start... i would like to know it's pros and cons of it... so can anyone share some of your knowledge?.... your help will be much appreciated ^_^