Smart Dust devices are extremly small wireless microelectromechanical sensors, also known as MEMS.[1] The sensors can sense just about anything for example: light, temperature, and vibrations. Each mote is said to contain sensors, computing circuits, bidirectional wireless communications technology, and a power supply.
The Diagram above, explains how Smart Dust works [2]
Smart Dust devices have many functions. Basically, the motes gather data, run computations and communicate information using two way band radio between motes. [3] Currently, the device can communicate with other motes within a range of a 1000 feet.
Diagram above: displays what Smart Dust does [4]
For more information go to the following link: http://zoo.cs.yale.edu/classes/cs434/readings/papers/SmartDust.pdf
REFERENCES
[1] Hoffman, Thomas. " Smart Dust: Mighty mote for medicine, manufactuing, the military and more." 24 March, 2003. http://www.computerworld.com/mobiletopics/mobile/story/0,10801,79572,00.html
[2] J. M. Kahn, R. H. Katz, and K. S. J. Pister, “Emerging Challenges: Mobile Networking for 'Smart Dust,'” J. Communications and Networks, Vol. 2, No. 3, September 2000.
[3] "Smartdust." 1 Novemeber, 2008. http://en.wikipedia.org/wiki/Smartdust
[4]Kupfer, Peter."Researchers are developing tiny, airborne devices that can look and listen as they float", San Francisco Chronicle,20 Novemeber. http://www.sfgate.com/cgi-bin/article.cgi?file=/chronicle/archive/2000/11/20/MN62513.DTL&type=science
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