I need advice for the following project -
I want to have laser sources on a one wall. The rays of light hit the opposite wall.
When you break the ray (so that the ray does not go to the other side) you hear a sound.
This will be just a one note.
Each ray is of a different colour and when you break the ray it plays its corresponding note.
I need to be able to play notes simultaneously, so if I break let’s say three rays it will play three notes at the same time.
Finally on a screen I will show what notes need to be played.
Can you give me guidance how to achieve this?