This talk will present our recent work on enabling pervasive personal sensing, focusing on HiJack, a system for stealing power and bandwidth from the mobile phone's audio jack. HiJack enables a new tier of small and cheap phone-centric sensor peripherals that support plug-and-play operation. More broadly, we envision the mobile phone will become a portal for perpetually-powered and physically-embedded sensors. Our harvester delivers 7.4~mW to a load with 47% efficiency using components that cost $2.34 in 10K volume. Integrating the pieces, this talk will present a combined system for delivering data and power over audio, and demonstrate its use by turning an iPhone into an inexpensive oscilloscope.
Monday, August 16, 2010
Free and open to the public