The Sun SPOT documentation for both the original (Green) and latest (Orange) releases has just been posted to:
http://www.sunspotworld.com/documentation.php
This includes Javadoc, Developer’s Guide, Theory of Operations, several application notes, etc.
Also included is the start of a FAQ, so please suggest additional questions that should be answered in the FAQ.
IMEC has fabricated an energy harvester to generate energy from mechanical vibrations by using micromachining technology. Output power as high as 40 micro-Watts was obtained, thereby achieving the range of required power for wireless sensor applications. The harvester comes with a model that can be used to optimize the device during design.
For an input vibration with a resonance frequency of 1.8kHz and an amplitude of 180nm, a maximum experimental output power of 40 micro-Watts was measured. This comes well in range of the amounts of power needed by wireless sensor applications, such as the pulse-oxymeter developed earlier by IMEC and IMEC-NL, operating from the Holst Centre in Eindhoven, The Netherlands.
More info here.
