This is a nightlight that projects color changing patterns on the ceiling. It is a pleasant companion for kids to use when drifting off to sleep at night. Built with a PICAXE 20M2 and a superflux RGB LED, it has a few different color blending algorithms. The picture is printed on a transparency, and the entire project is mounted in an inexpensive children's beach bucket.
Full details (schematic, code, and pictures) at http://corticalcafe.com/picaxe_sweetdreams_light.html
Video at: http://www.youtube.com/watch?feature=player_embedded&v=Cy_32tfrKyg
Full details (schematic, code, and pictures) at http://corticalcafe.com/picaxe_sweetdreams_light.html
Video at: http://www.youtube.com/watch?feature=player_embedded&v=Cy_32tfrKyg