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.

128x64 LCD Teardown

I don’t know what I’ll do with it, but it’s better than just throwing it out. Maybe it’ll come in handy one day. Just remember, never throw anything away unless you’ve torn it apart first! Read More...

Arduino as ISP Shield

Many a time have I had to set up my Arduino UNO as an ISP in order to burn the bootloader to either another Arduino or an SMD project. It’s a pain every time having to look up the pinouts and construct a cable each time. Having a shield is so much easier than messing around with jumper wires and DIY homebrew cables.


More Nixie Tube Experiments

Moving right along with the nixie tube experiments... I decided to add a 74595 shift register into the mix and attempt to shift out some data to two of my nixie breakout boards through a 74141 nixie driver.

Driving a Nixie with a 74141 BCD Decoder

In order to drive a nixie, you can use a 74141 BCD decoder. Sure, you can use transistors, but you’ll need a bunch of them. You can drive all 10 nixie segments off one 74141 chip. All you have to do is feed it a number in binary and the chip lights up the corresponding cathode on the nixie; the same way you’d drive a 7-segment display with a 74247. Read More...

IN-12 Nixie Breakout Board, Part 2

Rev 1 of my IN-12 Nixie Breakout Board was an abomination. Upon realizing that the nixie footprint that I used for the PCB was completely wrong, I immediately re-spun the board. I got it right this time. All ten digits light up when the corresponding pin is grounded on the 10-pin header. Read More...

GPS Clock Assembly, Part I

I was amazed at how fast my GPS PCBs arrived in the mail. Usually OSH Park takes a good 2 weeks to turn around a board. However, this time they arrived in 5 days. The boards look great...and they arrived just in time for the weekend! Read More...

Flashing a Nixie with an Arduino

I’m in the very early stages of prototyping a nixie clock. I picked up some MJE340 power transistors to switch on some IN-3s. I can then use a digital pin on my Arduino to turn on the IN-3s through the transistor. I’ll then have myself a blinking colon for my nixie tube clock. Read More...

IN-12 Nixie Breakout Board, Part 1

After a long month of waiting for PCBs, nixie pins, nixie sockets, and resistors....I was finally able to assemble my IN-12 Nixie Breakout Boards. Too bad the pinouts are backwards and half the digits don’t work. See, this is why we prototype! Read More...

GPS Clock Prototyping, Part V

Wow, has it been a long time since I worked on the GPS clock. A whole 8 months! The prototyping and PCB design was completed a long time ago. I just didn’t want to order the PCBs until the code was complete. The PCBs cost $60 bucks from OSH Park. That’s a lot of money to spend on PCBs that might not work, so I really wanted to make sure everything was solid. I just keep getting distracted with other projects. It’s time to just bite the bullet and finish it. Read More...

Bench-Top Power Supply, Part 2

Finally! After waiting 3 weeks for my ATX Breakout Board to arrive, I got to work on my DIY bench-top power supply. I really like the way it came out. It’s going to come in especially handy with all the upcoming nixie projects I have in mind. I’m going to get a lot of use out of it. Read More...