Joey's Electronics Projects

After figuring out how to build calculator keypads with my new laser cutter, one of the first things I worked on was new hardware with a new...

For the last few years, I've moved as many of my programming projects as possible from Windows to Linux. This includes PIC32 programming...

For my friend's birthday, I made her a theater-themed electronic card that sings happy birthday. The outside looks like a theater announ...

Though I haven't made many posts in the past two years, I have been working on projects slowly but surely. As time passes, I realize how...

In 2015, I got an ESP8266  with the hopes of using it to connect a graphing calculator to the internet. The plan was to swap the four 1.5v A...

A little over a year ago, I bought a new Casio FX-9750GIII graphing calculator. It really appealed to me for several reasons so I decided ...

For Christmas this year, my girlfriend and I made a talking toy cat for her nephew. It was a fun opportunity to build something together and...

A few years ago, I got interested in Forth due to its connection to RPN calculators but lost interest because of the huge hit to perform...

Tiny Calculator is business card size. The hardware for this project is finally done! The first step was getting the LCD running. This ...

Since my last post I have made a lot of changes to the CORDIC routines I was working on. As you can see in the chart above, the new vers...

For the trig functions, I started building the same angle table that I used for the CORDIC routines in my RPN Scientific Calculator . Com...

The last few weeks I have gone down a little bit of a rabbit hole writing BCD math routines for my Tiny Calculator project. The goal has be...

My  Pocket Calculator project has been on the back burner for a few months while I finish my master's thesis. In the mean time, I got ...

Most of the microcontrollers and processors I have looked into using have been for my calculator projects. That's one of the main rea...

One of the last things I want to make progress on before Makevention in a few weeks is a graphing calculator I have been planning for quite...

During the past few weeks I have had a lot of time to work on the projects I planned for my Summer Hackathon . So far I haven't made as...

The last part of my RPN Scientific Calculator is the keypad. Before, I had considered trying to make individual key labels somehow. If I co...

For a couple of projects I want to work on in the next few months I will need to use EEPROMs. Another member at our hackerspace I have been...

For Halloween I decided to put some LEDs controlled by an MSP430 on a sombrero. Unfortunately, I did not finish in time to take it to the...

So I have not updated my blog in a while. Grad school is keeping me pretty busy. Most of what I do with electronics now is related to the l...