Hey, I finally got the time to build the laser harp kit I bought some time ago.
Everything works, but I've noticed I have a really small range where my hand is detected. If I put my hand 1/4 meter or more away from the light sensors then they are no longer detected. This even with sensitivity turned all the way up. I'm not sure if I did anything wrong. At such distances, the debugging LED basically stays at the same brightness constantly (any change in brightness by me interrupting a laser is almost unnoticeable). This makes me think it might be reflections from my (white) ceiling. Does this happen to anyone else? I'll have to try the laser harp somewhere where there is a darker ceiling (or no ceiling at all).