How to Build a Change Machine – Arduino Project for Arcade

How to Build a Change Machine – Arduino Project for Arcade

Making a change machine using a Cube Hopper Mk2, CH-926 Coin Validator and an Arduino.




Jjay Mañaol says:

Sir Jjay Manaol po ito 4th year student ng Universidad De Manila. Sir Need ko po ng Adviser sa Feasibility study ko po. kokonti lang po kasi tayong arduino user po. thanks po if interested po kayo contact me at 09195444012 yan sir thanks po

Duarte Rei says:

Hi, my country works with euros, I would like to have a machine doing the same as this one, but the change would always be 10 cents, If I buy your code would it work?

Hacks says:

HI, craynerd. Are you confidernt the coin acceptor cannot be fooled by quickly inserting coins. The tests on my CH926 showed that you cannot tell apart 6 pulses (seen as £2) from, say, 4 + 2 pulses (actually generated by inserting 50p quickly followed by 10p). Did you test that use case ?
See my blog post at for more info.
Kind regards,

Jenixvink Freeman says:

great love the video , planing to get the code later 🙂 , hope you also put display to your code much appreciated gonna follow you and wait for the next upgrade for this code

Gems says:

Hey Chris, any chance you can explain how the relay is wired to the coin acceptor please? I've got a 12v dpdt relay and I also bought some 7v zenner diodes but not sure if they are needed or not.

paul Meynell says:

How is the Arduino , detecting the sensor pulse, without the Arduino ground being connected to the 12v ground?Also ids thre Arduino getting a 12v pulse? I thought it could only handle 5v.It obviously works but I can't understand why !

James W says:

Great video, I've been messing around with the ch926 and been looking for this project for a few weeks, perfect timing!

digitaljunk says:

Thanks for sharing and audio fix reupload . 🙂 thumbs up

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