Screaming Circuits: April 2011


Grounded in Reality?

Looking back, I think I could have done a few things different. For example, I don't really need a separate power-on LED. I could either just not populate it, or rev the schematic a little to make it a software... Read more

Done and Done.

And... Drum roll, please... It works. I put in a couple of batteries, programmed the MCU and turned it on. It works. I'm always surprised when something I design works on the first try. This being such a simple design,... Read more

My Mistake - Naturally

I received my PCBs for this project from Sunstone yesterday at about 10:10. I quickly dropped them into my box of parts and delivered it to the receiving pile-of-boxes in our shipping.receiving department. At 11:40am yesterday, I received an email... Read more

Short Cuts Don't Always Make Long Delays

The saga continues. I have my parts kit. The PCBs should be here from Sunstone tomorrow. When I placed the order on our website, I estimated that I'd have the parts and PCBs today, but I wasn't really sure. I... Read more

Centroid / XYRLS / Pick and Place

Call it what you may, but surface mount assembly robots need this magic file to determine where to place your components and how to orient them. We call it a Centroid. Others may call it something else, but it's all... Read more

Cat Chow

I recently wrote a bit about eating my own dog food relative to a small design I've put together. Today, I'm moving along with that process and kitting it all up, so I thought I'd pass on some hints on... Read more

Dog Chow

I don't know how common the phrase "eating your own dog food" is. I know I've heard it before in some of those obnoxious business seminars. Not all business seminars are obnoxious. Some are quite helpful and actually, now that... Read more

Picking Packages

A long, long time ago, in a place pretty close to here, picking a form factor was easy. Your CPU came in a 40 pin DIP. Your logic came in 14 or 16 bit dips. You picked resistor sizes based... Read more

Texas Instruments plus National Semiconductor

Everyone else seems to be weighing in on the Ti + NS acquisition so I thought I'd better do the same. Depending on whom you speak with, the ramifications could be quite large or not terribly noticeable. Myself, I'm going... Read more

Top-Five Ways April Fools Is Good For You

April first isn't quite here yet, unless you're reading this a month from now. Then it's long come and gone. The concept of "April Fools" goes back many years. In some circles, the first April Fools Joke is said to... Read more

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