Author Archives: Dennis

Storing Lipo batteries for faster charging times and longer lipo life

Posted on April 3, 2012 by Dennis

I just finished a quick flight at the park with my Trex 550e. What a fun bird to fly. That picture was taken last year on a nice summer morning. No pictures today but it’s the same heli. Anyway, the … Continue reading →

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Quick convert raw g711 uLaw audio to a .au file

Posted on March 16, 2012 by Dennis

I had reason to playback some raw g.711 audio data. I made the following script to convert the data to a .au file that is playable. From the AU file spec.. which is way simple by the way: You just … Continue reading →

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How to correctly calculate break even time on a refinance – For Math Geeks

Posted on February 23, 2012 by Dennis

After my last post on refinancing, I found a refinance calculator on Zillow.com that compared loans the way I suggested. It has a shortfall though, it calculates break even time with the difference in your new payment compared to the … Continue reading →

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Should I refinance my house?

Posted on January 29, 2012 by Dennis

OK, disclaimer: I’m not a financial professional. That said, I do enjoy financial topics and am somewhat of a hobbyist. I’ve written articles in the past about how I do envelope budgeting with Gnucash for instance. That said, I’ve been … Continue reading →

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Upgrading Software

Posted on December 13, 2011 by Dennis

I can never resist. When a new version is available I have to have it. Upgrade to WordPress 3.3 was seamless. Devils is always in the details though. I’ll probably find a post or a plugin that doesn’t work the … Continue reading →

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Rendering to a texture with iOS 5 texture cache api.

Posted on December 8, 2011 by Dennis

There are a couple examples of how to take image input, perhaps from the iPhone camera, or from your own image, fast map those image to an OpenGl texture, and then render them with an OpenGL shader. This post is … Continue reading →

Posted in Programming | Tagged , , , , , | 60 Comments