This project is a place for information about DYI electronics and gadget designs.
Spectometers using mobile phone cameras
Public Lab DIY Spectrometry Kit
https://www.kickstarter.com/projects/jywarren/public-lab-diy-spectrometry-kit
APS spectrasnapp https://itunes.apple.com/us/app/spectrasnapp/id582838193?mt=8
Parallax
http://www.learn.parallax.com/inspiration/home
http://www.parallax.com/Education/EducationHome/tabid/463/Default.aspx
Button Track
http://www.indiegogo.com/projects/button-trackr-find-lost-items
Triboelectric nanogenerator
Harvesting Energy from the Natural Vibration of Human Walking, http://pubs.acs.org.ezproxy.library.wisc.edu/doi/abs/10.1021/nn405175z