Reprogram Ikea's Dioder, based on http://gabriel-lg.github.io/Ambioder/ (My brothers project). But a very different approach, so that there is space to bring back ikea's buttons and color wheel as well.
Require gputils (http://gputils.sourceforge.net/) for gpasm and gplink. And make.
Require gpsim (http://gpsim.sourceforge.net/) to run simulator.
$ make
$ make run
pulse.stc drives the sim, it will simulate 0.1 second of running.
license: http://unlicense.org/