Hello, I am doing a project which consists of having 9 cubes that form a puzzle. When a cube is positioned correctly it emits a green light, otherwise a red light. How can it be possible for a specific cube to know whether or not is in the right position? p.s I'm a beginner in Arduino. Thank you …

How can I implement this?

Grumpy_Mike November 7, 2017, 9:34pm 4

I'm a beginner in Arduino.

Yet you choose an almost impossible project.