Now [jgpeiro] has made one which is light years ahead of the toy kits, using a Raspberry Pi Pico, a 100 MHz ADC, and an effort to design a better input circuit. At its simplest this could be a ...
BeamBox R-1 Pico Projector: Slick and Bright, But Not Yet Amazing Pico projectors have been heftily touted by the gadget-making industry as one of the "next big thing" technologies for 2009.
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