Timer Input Capture on Teensy 3.0 21 Jun 2013 | 07:57 am

I’ve been using the Teensy 3.0 for an RGB LED bike wheel POV project and I am really impressed with the capabilities of this little board. For the POV to work properly, you need to know when to update...

Keeping Sensors In The Dark 6 Jun 2013 | 09:02 am

My AltStick rocket altimeter is designed around a digital absolute pressure sensor from Freescale – MPL3115A.  I chose this part because 1. it’s small 2. it’s low power and 3. it outputs readings in h...

DIY Homebrew Kegerator Thermostat 9 May 2013 | 04:00 am

Here’s a picture of a project I recently completed: a thermostat for controlling the temperature in a homebrew kegerator. I am using a small chest freezer which can hold two cornelius kegs and associa...

Valentine’s Day Projects 14 Feb 2013 | 05:11 am

Love is in the air around here as we have been working on Valentine’s Day projects for each other.  I made a Valentine Love Light for my wife and she went all out and created 24 Hours of Love. Our chi...

HexBright FLEX Arrived 21 Dec 2012 | 06:30 am

So if you hadn’t heard, there was a Kickstarter project called HexBright. Check it out or see the main website for more info. I pre-ordered one because I thought the idea of a super bright flashlight ...

Snowman and Lights with ColorNode Boards 15 Dec 2012 | 09:03 pm

ColorNode PCBs Now Available at OSH Park Store 29 Nov 2012 | 04:30 am

Laen at OSH Park has started stocking limited quantities of bare ColorNode V1.0 PCBs at the OSH Park Store. If you don’t want/need to buy in quantities of 3, you can order single PCBs from the store. ...

New ColorNode SW and HW Files Uploaded 21 Nov 2012 | 10:56 am

Many people were asking so I updated my ColorNode software to support Arduino IDE 1.0.1.  I also made a minor revision to the PCB to include an LED for status (useful when debugging) and a slightly mo...

New Project: Altimeter Stick (AltStick) 29 Feb 2012 | 06:52 pm

The Altimeter Stick (AltStick for short) is a miniature rocket altimeter which is powered by a supercapacitor. The design is small and light enough to be used in very small model rockets where other a...

ColorNode Recap 13 Feb 2012 | 07:03 am

Reading through the recent comments on my ColorNode project, it is clear that I wasn’t clear enough with how I used the hardware from a software perspective.  Most of the software is based on the RF12...