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How to Produce 640x480 Color VGA Video From an 8-Bit Arduino

Most 8-bit AVRs in the wild (including this project's Arduino Nano) run at a default maximum 16 MHz. That's 16,000,000 calculations per second... a respectable number for most embedded applications. The VGA video standard, which is the default  "we-can-always-fallback-to-this" industry standard is 640 pixels wide by 480 pixels tall by 60 frames per second. This […]

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The DQYDJ Weekender, 6/7/2014

What's up with the spam comments lately?  Previously, most spam in my pending comments was gushing with ebullient comments about the quality of the information on this site.  Now I'm seeing a hilarious, backhanded turn: I do agree with all the ideas you have introduced in your post. They are very convincing and will certainly […]

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How to Double Clock Frequency Using Only Digital Logic

One of the projects I was working on once required a doubling of clock speed from an Arduino Nano, which has an Atmel 328p running at 16 MHz on-board. I'm going to explain in this piece how I was able to double clock frequency with digital logic - no PLL or DLL needed! My challenge?  […]

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The DQYDJ Weekender, 5/31/2014

5 years blogging. That said, I don't see any internal signs of slowing down - which is, of course, the message which comes from long time bloggers right before they stop blogging.  Is there any way to hang a lampshade on it without looking like you're about to hang up your keyboard?  Anyone?  Bueller? Links […]

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The DQYDJ Weekender, 5/24/2014

Yeah, I know, I skipped last week - it's hard to motivate yourself to write blog posts on 1,300 calories.  I made it up to you, though, and updated the two most popular posts on the site: S&P 500 Dividend Reinvestment Calculator The 10 Year Treasury Coupon Reinvestment Calculator I know, numbers > our writing […]

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How I Lost 11 Pounds in 15 Days.

Here's the quick rundown if you're not into the whole shock value thing: I didn't get sick.  I lost 11 pounds in 15 days.  Of that, I estimate I lost around 7.3 pounds of fat and only about 1.1 pounds of lean mass over the 14 days of the quick diet.  Not bad for a […]

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Market - and Calculated - Inflation Expectations for May, 2014

It's been a long time since we've turned our eyes to expectations of inflation, but we're here today to do that very thing.  Finally.  Or something like that. Using The Treasury Yield Curve The simplest way to gauge inflation expectations is a classic - merely take the long term rates for long dated treasuries and […]

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Personal Income Growth By State

The Bureau of Economic Analysis recently (okay, fine, more than a month ago) released the very interesting state personal income overview for 2013.  In it, they break down that oh-so-important indicator, personal income growth, into a percentage change from 2012 in each state (and Washington, DC). Grab it (warning: pdf). Uneven Growth The report revealed […]

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Dealing with Hobby Purchases... Without an Emergency Fund

In a Weekender, I shared with you a horrible tail of woe: for the second time in two years, I had an issue with a guitar purchase.  Last year, I bought a Les Paul Special... knowing it wasn't a carved top, sure, but expecting the 'Les Paul' signature silk-screened on the headstock like it was […]

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The DQYDJ Weekender, 5/11/2014

Dieting is no fun.  Logging my weight loss and calorie intake for near future sharing with the internet?  Tons of fun.  Expect that soon! Until then, here's some articles we enjoyed: Links We Liked! Nelson at Financial Uproar is up with his review on Flash Boys, the new Michael Lewis book on high frequency trading.  […]

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