Category Archive: Circuit Cellar

Oct 09

Circuit Cellar article – “The Footlight Project”

Got a new article published in Circuit Cellar (Oct-2015 issue). This article is about a failed attempt at building “foot headlights”. Everyone always writes these glowing articles about successful projects. I wanted to write one about a failed project so that readers know that projects do fail, and that’s OK too because every failure …

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Apr 29

Shoehorn a accelerometer heading calculation into an ATTiny 261

working on a recent project, I wanted to get an ATTiny261 to calculate a heading in degrees from an accelerometer. The accelerometer (an Xtrinsic MMA8453Q 3-Axis, 10-bit/8-bit Digital Accelerometer) has an I2C interface with digital X/Y/Z readings, so no analog to digital mess, just simple math, right? RIGHT…. Given all the UAV stuff out there, …

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