DIY Coin Changer Machine using Arduino - Apex 5400 Bill Acceptor

This is my PROTOTYPE Coin Changer Machine. You can choose specific denomination or mixed denomination. In this case, I&using APEX 5400 Bill Acceptor which quite good and easy to operate but there some issues in this model like old firmware which it cannot detect or accept Php50 (NEW) bill. Materials/Components: - APEX 5400 Bill Acceptor - Arduino - LCD Screen - Keypad - x3 Servo Motor (I used MG996R Servo) - PVC Pipe (That fits any coins)