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.

GPS Clock Assembly, Part III

I've been working on this clock for a long time, and a lot of effort has been put into it. I've learned so much from this project. I do have to admit some parts of the code aren't as elegant as they should be, but it works. With the code complete, all that's left to do is try my hand at designing a 3D printed joystick for the 5-way switch. Read More...

GPS Clock Assembly, Part II

If you’re following along, you know that version 1.0 of my GPS clock was a total bust. I somehow managed to screw up the PCB. I had the FTDI RX and TX lines tied to the wrong port on the ATmega2560. There was just no way to rework the board. Besides, I like to keep my final projects looking neat and clean. Rework wires are just a big no-no in my book. That meant that I had to fix the error on the PCB and place another order. I got my boards and most of my parts. I soldered together what I could. So far, it looks like it’s going to work! Read More...

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...