LED Projects

Light Emitting Diode Projects

Transform old projector to truly digital

Matt‘s team found an old, single-slide, sans-carousel slide projector, which they up-cycled to the 21st century’s truly digital projector by adding a 10 Watt LED and a Nokia 1200 LCD. The build uses an ATmega88 microcontroller to control LCD images, and an infrared receiver to advance the slides and turns the projector ON and OFF remotely.

The LCD is controlled by a bit of bit-banging from the Mega88, using hard-coded images of Che Guevara, Hendrix, Space Invaders and some old-school Macintosh/Lisa icons.