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 point of this post is about lipo batteries. I just brought up the heli fly [...]

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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 need to add 6 32-bit header flags. raw2au.py: import struct   header = [ 0x2e736e64, [...]

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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 difference in your old payment. This is actually quite incorrect. That number is good to [...]

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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 thinking a lot on these interest rates lately and thought I’d write down a few [...]

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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 same way. Oh well, I’m on the latest and greatest right?!

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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 for those of you who don’t necessarily want to render the image on the screen, [...]

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