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.


 
 
 
 
 
Kevin Rye.net - Main

Kevin Rye

Geek Extraordinaire. Yeh, I said it.

Arduino TV Hack

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I've always wanted to make an oscilloscope clock or something similar using a really small CRT. Perhaps input some video with the use of something like the Uzebox ATmega game console. I found a cool little 5" black and white TV in the garbage the other day. Although it seems like it's toast and maybe a lost cause, it got me thinking about cool TV and CRT hacks. Read More...

Nixie Clock PCBs / EAGLE Upgrade

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I've been struggling trying to make the PCBs since EAGLE limits the board size on the free version to 100mm x 80mm. I have to make everything modular. That means one board for the power supply, one for the audio stuff, one for all the logic, and 3 each for the nixies and the drivers. 5 PCB designs, 9 boards in all. They'll all have to be clipped together with wires and headers, etc. The whole thing seems less than ideal. I wanted to be able to just make one big board. I know I can’t make the entire clock one giant PCB. It’ll have to be at least 3 "layers" stacked up, but not made out of 9 separate boards. I bit the bullet and paid the $169 upgrade fee to the EAGLE Hobbyist version. It allows 160mm x 100mm PCBs. What a difference! Now I can make PCBs that are 6.29” long! Read More...

Mini 7-Segment Clock V3, Part II

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I hope the LEGO minifig gives you a good sense of scale. This clock is pretty small. It's amazing how small the Mini Clock has become after just 3 iterations. I'm really happy with the way that it came out.
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Polarity Checker

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I just can't sit still. I always have something in the works. I need to always have something in the works. This is especially true when I'm waiting two weeks for a board. I think most of my projects start during the lull of another. I especially like it when a project goes from concept to a PCB order in about an hour! If only every project was like this. I'd have a room full of gizmos! Read More...

Nixie Clock 5V / 12V Power Supply

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The past few months have seen zero progress in the nixie clock department. It's time to dig back in and make some progress. In order to power the logic of my clock, I need to regulate the 12 volts that's feeding the nixie power supply PCB. I decided to go with a super small buck converter that I found on eBay for $3 bucks. Works like a charm. Read More...

The Astable Multivibrator


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While digging through some old paperwork looking for an old receipt, I happened to find an old schematic that my Dad chalked up for me as a kid. The classic astable multivibrator. I just had to build one again for old times' sake. Read More...

Mini 7-Segment Clock V3, Part I

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I got my hands on a few really small 7-segment displays around 10 years ago. Back in the day, I didn't have the slightest clue as to how to multiplex them. I just put the wraps on a new 7-segment clock to replace the innards of my old 7490 clock. Seeing how easy it was to multiplex those 7-segment displays, I thought I'd have a go at trying to make another Mini 7-Segment Clock out of one of these teeny-tiny displays. Read More...

Large 7-Segment Clock, Part IV

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I'm really happy that it all came together so well. I love when I design a board and it just works. I attacked this project fairly aggressively. It only took me 3 weeks to go from concept to final build. Not to mention, two weeks of that was mostly waiting for PCBs to arrive. I probably saved myself another 2 weeks by already having the enclosure built. The code was relatively straightforward and the PCBs were easy to design since I was able to apply what I've learned from my other clock builds. There wasn't much "R&D" involved at all. I basically just banged this one out. Read More...

Large 7-Segment Clock, Part III

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With the display electronics complete, it was time to move beyond the concept phase and begin the actual prototyping of the 3D-printed frame. It came out better than I could have anticipated. I totally nailed it! Read More...

Large 7-Segment Clock, Part II

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After a 13-day wait, I had my 7-segment LED breakout boards in-hand. It only took a few minutes to solder the boards together. I just have to wait a few more days for the colon boards and I can finalize the 3D-printed frame. Read More...