A nice system for home and party is an light organ (disco lights), who is made ususal with 3 channels (low, medium and high frequency), but I like with 4 channels, 3 for music and one for pause (or negative).
and a finished montage:
I have 2 movies with them in action:
1) Orga de lumini
You can use design from my foar board, made in Sprint-Layout:
PCB can made in 2 version:
– classical like in article: Cum facem un cablaj
– toner transfer method like in article: Cum facem un cablaj (II)