Joey's Electronics Projects

12345.6789 + 9999.99999 packed BCD on 8051 A few years ago I decided to revisit the microcontroller comparison I had done to see how m...

In preparation for the 6502-based calculator I am planning on building, I started thinking about the best way to do BCD multiplication. On...

For the 6502 graphing calculator I started working on two years ago I wanted to use an ATF1508 CPLD to do the address decoding. In another...

After about two years away from electronics, I have some time for my projects now that I am almost finished with my degree. Lately, I...

Makevention went really well! I was able to show everything I have been working on, although I didn't have time to finish everythi...

The Summer Hackathon I started on in May came to an end in August when I displayed a lot of what I had been working on at Makevention. I fi...

In August my RPN Scientific Calculator was featured on Hackaday in Hacklet 70 - Calculator Projects . It was really great to see my project...