Doing research for developing a prototype Anna and me came across some different ideas, on how to regulate or operate the turn lights.
Even if it may sound stupid – MIND CONTROL!
NeuroSky – EEG sensors
We stumbled over these cute cat ears, steared by measuring attention of the bearer.
Besides this funny gadet the ompany NeuroSky offers varius stuff to measure and to work with one’s brain activity. NeuroSky Store europe
It should be possible to develop the turn lights with the NeuroSky kit and embed it maybe into a cap, or a helmet. The disatvantage might be, that one first has to learn to stear turn lights with brainwaves, but actually what this EEG measurement does, as far as we could find out, is monitoring the attention level of the bearer.
Find here a video, that shows a little bit how that works: Neurosky | Ep. 9 | HardWired ft. iJustine
Arduino (LilyPad) with L3G4200D 3-axis Gyroscope Module
Another possibility to have the turn lights controlled could be the use of a gyroscope, like we know them from ous smartphones. Embedded into a jacket, by measuring 3 axises the blinking of the turn lights could be activitated when the 3 axises are aligned within a range of certain degrees of the sleeve.
One can get the module, wich is controlabe / measurable by Arduino for example here: L3G4200D at watterott.com for around 46€.
But there are cheaper suppliers (20$) that are shipping overseas.