RGB “brain machinuino”

Arduino Technology

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

View more articles by Gareth Branwyn

@garethb2

August 6th, 2008 4

At ladyada’s tea party, user mtbf0 has posted details of his RGB brain machine powered by a Boarduino.

…it generates a base frequency at 200Hz. Offset frequencies of 201Hz-217Hz in 1Hz increments can be selected giving binaural beats in the range of 1Hz-17Hz. The LEDs are controlled by comparing the phases of the base and offset waveforms, so although the code’s a little hairier than Mitch’s, adding new frequencies is easy.

Trippy RGB brain machinuino