I admit it: I'm a total geek. I love electronics, programming, 3D art, vintage Apple hardware, and whisky. I'm always juggling half a dozen projects. I also enjoy documenting it all: my successes, my failures, my experiences... and everything geeky along the way.

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Kevin Rye

Geek Extraordinaire. Yeh, I said it.

Bench-Top Power Supply, Part 1

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My wife came home today with her friend’s 12 year old junker of a Dell. The machine is toast. The motherboard is shot. The only thing left to do was gut it for parts. The only real gem out of the lot was this 250 watt ATX power supply. I’d love to make use of Dangerous Prototypes’ ATX Breakout Board and make a bench-top power supply for prototyping. Read More...

Got My Nixies Powered!

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Ohhhh yeaaah!!!! It only took me a decade, but I finally got one of these nixies fired up! As I mentioned in my previous post, I picked up a new nixie power supply kit off eBay for under $10 bucks. It worked like a charm. Read More...

Nixies!

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I’ve been wanting to build a nixie clock for over 15 years, ever since I saw the TTL nixie clock my Dad build in the 70s. Being a young lad, I was very apprehensive in dealing with the high voltages required to fire nixies. I just never had the guts. Back in 2001, I figured I’d start out small and design a TTL clock using 7490s and 7-segment LEDs. The whole clock runs off 5V and there’s zero chance of being electrocuted. It’s been a long time coming, but I think it’s finally time to bite the bullet and make a nixie clock. I’ve learned so much over the past few years working with the Arduino platform, that I’ll be able to apply what I’ve learned from all my other clock projects. Read More...

Upgrading My Old 7490 Clock, Part V

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I did it! I finally finished upgrading the clock internals and the enclosure. I think it came out amazing. I just can’t believe after all these years that this clock finally looks like something I can be proud to display. I’m really happy with the results. Read More...

Upgrading My Old 7490 Clock, Part IV

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The last prototype Arduino board I made for the 7490 clock rework didn’t turn out as well as I had hoped. The board did what it was supposed to do, but the implementation wasn’t that great. The more I thought about it, the more it became clear that the Bare Bones Arduino boards I designed months ago were the perfect solution. After all, it’s projects like these that inspired me to create the Barebones Arduino in the first place. Read More...

Upgrading My Old 7490 Clock, Part III

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Since I wasn’t happy with the engraving on the first spin, as well as totally forgetting to make a cut out for the display, I revised my SVG file and resubmitted it to Ponoko. As far as the color, I think it’s going to look pretty good. I might lower the value of the resistors in order to brighten up the digits. I’ll have to see what it looks like when it’s all put together. Read More...

Happy Father's Day!

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My wife asked me what I wanted for Father’s day. I told her she could just buy me booze. Not only did she pick me up a bottle of Black, but she picked me up a huge 1.75 liter bottle!
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LCD Clock Version 2 - Part II

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With my PCBs and the laser cut acrylic in hand, it was time to wrap this guy up. I think this clock came out so much better than version 1. I can’t think of a reason to do a version 3. With this, I think I’ve done all I can do with a 16x2 LCD clock. Read More...

LCD Clock Version 2 - Part I

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When I had shelved this clock a year ago, I had gotten pretty far with the PCB. Although I still had some design decisions to make, as well as a ton of code to write, it was pretty much complete. Now that I’ve spent some time working with SMD Atmegas, I decided to redo the PCB to make it all SMD. Read More...

Unite the Clans!


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We're going to Disney! That's right. We have a summer vacation booked for Orlando, Florida. It's going to be awesome! Between Scotland, and 3 states in the US, we're all going to converge in Florida for one huge family vacation. This calls for a commemorative t-shirt, since a family reunion of this magnitude has not been seen in years.
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