KrisBarrett.com » Posts in 'Video' category

Fast Fourier Transform

0
Posted in Brief, Electronics, Programming, Video by kris
August 25, 2008

This is a project that I threw together one weekend.  The FFT is calculated using Processing. The FFT is then sent to the Freeduino via the serial port. The Freeduino displays the FFT on the dot matrix display using shift registers and a Darlington transistor array.

Tri-Color LED Light Bar

0
Posted in Electronics, Programming, Video by kris
January 15, 2008
Tags: , ,

 

I recently connected an Arduino to a Tri-Color LED Light Bar that I bought from SparkFun Electronics. I used pulse width modulation to control the brightness of each color. The individual colors combine to make the desired color. Download the code here and see the schematic below. Read more »