paul's blog

Blinky RGB Lights - ShiftPWM Library

Using Elco Jacob's ShiftPWM Arduino Library. Probably the cheapest possible way to drive lots of RGB LEDs!

Flight Sim Controls on Teensy


November 21st Meeting


CapSense Demo Video

My ongoing effort to learn Final Cut Pro X......

Thanks Laen - Using the SMT adaptors!

Laen's extra SMT adaptors are mighty handy....

Arduino Compile Speedup

Update: This code was committed to Arduino's github repository on Dec 16. It should become available in the next version of Arduino, eg 1.0.1.

Pirate Ship Fire Sequencer

Recently I built electronics for Lostmachine Andy's fire effects on his awesome pirate ship for Burning Man.

"Read more" for technical details....

El Wire Color

I recently got around to making a color fading el wire driver, which actually tries to shift the color by changing the AC frequency.

"Read more" for technical details....

Standalone (Txtzyme) Sparkles

At the Open Source Bridge hacker lounge, Ward Cunningham was talking about borrowing a Mac Mini to run his Txtzyme Sparkles at an art show.

Rather than go home at a reasonable hour, I thought it'd be fun to try implementing all the math directly on the Teensy++, using only the Arduino IDE. Making it run was easy, but doing the math as fast as the computer+USB was quite a challenge.

"Read more" for the stand alone Arduino-based code.... which can run as fast, even faster than the USB communication allows.

Thunderbridge at Soak 2011

Recently I've been working on ThunderBridge. Here it is at SOAK last weekend.

"Read more" for details....

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