Welcome to My Arduino Page!

Projects by Jens Dyekjær Madsen

This site is dedicated to Arduino libraries and hardware projects I’ve developed over the years. I’m currently working on organizing and refining the content for public release, so please be patient as the site continues to take shape.

You can already find some of my projects on GitHub, with more to come both here on the website and on GitHub in the future, including software libraries and hardware designs. Stay tuned for updates!

Most people know me best for developing the JDM84 — one of the most popular low-cost PIC programmers of the late 1990s. It became the first PIC programmer for many electronics hobbyists and students.

GitHub


Historical Projects

JDM84 PIC Programmer

One of the most widely used low-cost PIC programmers of its time.

Z80 Bootloader

The world’s first serial bootloader for Z80, 8085, and 8155 systems using only NMI, RESET, and CLK.

No Memory Interpreter

A highly resource-efficient interpreter using the Z80’s own microcode without RAM.

ASDOC Documentation

Ideas and concepts related to asynchronous processor architectures.

These and other historical projects can be found on my old website: jdm.nu.

Contact

If you have any questions or feedback, please feel free to use the contact form.