Making an Arduino Change Machine - Update with LCD and Philippine Peso
Code is here,.. https://raynerd.co.uk/product/change-machine-code/
Coin Acceptor can be purchased here: https://amzn.to/2IDAYFa
See the original How to video here: https://www.youtube.com/watch?v=yIFst9fgcXQ&t=2s
If you have any suggestions for improvements, let me know in the comments.