This is an open-source 12-channel DMX512 dimmer, currently known as dmx-dimmer. The name will change to something less meaningful by production time. It is based on Hendrik Hoelscher's dimmer.

The goal is to produce schematics, PCB layouts and code, all available in a form that allows modification and (even homebrew) manufacture. This is important, since tool/material/component availability varies from place to place.

Many modifications have been made, but most importantly:

• an (arguably) modular design;
• support up to 12 channels;
• optionally use 3-phase mains power;
• use commonly available AVR microcontrollers, ATMega168 and ATTiny2313;
• code written in C.

This is a work in progress, currently in late testing stage. Documentation is basically unavailable, but might become so if anyone is interested. Most of what exists is in the git log.

gEDA was chosen to do the design work. As to why is a topic for a whole article. Mainly, I wanted to see whether it's good enough for medium-sized projects. The short answer is maybe, if you're stubborn as I.

Custom symbols and footprints are used.

A license form is currently being decided upon. Rest assured, it will be open-source.