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Archive for 2009

Fixing Microsoft Office 2004 with Snow Leopard

Posted on September 09, 2009

If you upgrade OS X to Snow Leopard, and Word 2004 starts locking up, freezing, not responding when you try to open a document, forcing you to force quit, then it's probably a font cache issue.

The easy way to clear the cache is to reboot with the "Shift" key …

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Marking a file read-only in emacs and vim

Posted on July 20, 2009

I had some automatically code generated files that I wanted to mark as read-only. I knew it was possible to flag a file as read-only in both emacs and vim. However, I found it really hard to Google for the exact syntax.

In Vim, the flags go in the file's …

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Computer-powered lottery tickets : The Engineyard programming contest

Posted on July 16, 2009

I first read about the Engineyard Programming Contest yesterday and I thought it was a silly contest, winnable only through the application of raw brute force.

For some reason, I woke up this morning obsessed with it. This is despite the fact that this "competition" is basically a lottery, in …

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Tagged C | Comments

Servo pulse width range with Arduino

Posted on July 04, 2009

I recently bought a couple of cheap MG996R high-torque servos on ebay, and I want to use them with my Arduino.

Arduino + MG996 + Dusty Breadboard

These have the "JR" servo pinout, so orange = signal, red = V+, brown = V-.

You control these servos by sending a 50Hz pulse width modulated signal. The pulse width determines …

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Tagged Arduino | Comments

Recent Posts

  • Fixing Microsoft Office 2004 with Snow Leopard
  • Marking a file read-only in emacs and vim
  • Computer-powered lottery tickets : The Engineyard programming contest
  • Servo pulse width range with Arduino
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