Halograph Electroencephalograph
Ten years after I was able to afford my first printed circuit board from Olimex, I finally have an EEG that I can record my sleep with tonight.
It can be worn with the sensors on the forehead by the Frontal Lobe to trigger on the spikes in electrical activity caused by the eye movements or at the back to monitor the brainwaves by the Occipital Lobe where visual perception is processed. Check it:
http://i.imgur.com/3n14ti1l.jpg
I will upload the logs to the Lucid Scribe Database project if I catch any dreams.