28th Jan 2012

ADC Battery Voltage: Divide, Match and Measure…

While the stock Arduino isn’t particularly well geared to running from a battery source, there are times it will be useful to know the status of our battery voltage. Using...

27th Jan 2012

ColorBabel: Hue to RGB, do you copy?

When talking in the color space one should speak lightly.  Illustrated here is a translation from 10 bit hue to discrete 8 bit PWM levels for red, green and blue...

31st Dec 2011

DC Servo: In a State of Motion…

Software and hardware development have converged into a practical test platform. The encoder processing loop has been converted to fast inline assembly and released under GPL.  And in the following...

21st Dec 2011

Inline Assembly: A Fast Quadrature Decoder…

Inline assembly is a great tool to have in your programming arsenal. It gets things done as fast as a kitten chasing a hummingbird, yet retains the usability and portability...

15th Dec 2011

Catching some ZZZs, Part 1: Interrupted Sleep

So you finished your lastest Arduino project, hooked up a 9volt battery to the VIN and stuck the whole thing into a project box. You come back a few hours...

30th Nov 2011

Capturing: Fuji S2000HD IR Codes…

Sometimes all the searching in the world won’t find you what your looking for.  This being the case with the shutter IR trigger codes for the Fuji S2000HD digital camera. ...

19th Nov 2011

NoMi Locus: DC Servo kit…

NoMi Design has been hard at work creating a CNC capable DC Servo Motion Controller. Based on an earlier design for the “Topology of Dubai” project, the new drive combines...

09th Nov 2011

Arduino Serial Graph

Here is a simple bit of Arduino code that is handy for testing analog sensors. It will fill the screen with a scrolling graphic representation of the sensor value. In...

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