“Hello, hello. I am calling from a battery-free phone.” Vamsi Talla’s words in a cluttered lab at the University of Washington in Seattle are barely audible through pops and static. But the fact they can be heard at all, on a nearby Android smartphone, is revolutionary, because Talla’s own cell phone has no battery at all. […]
Cell Phone Can Make Calls Without a Battery Read More »
Conventionally, wireless controlled robots uses circuits, which have a drawback of limited working range, limited frequency range and limited control. Use of mobile phones for robotic control can overcome these limitations. It provides the advantages of robust control, working range as large as the coverage area of the service provider, no interference with other controllers
Cell Phone Controlled Pick and Place Robot Read More »
Cell-phone Virus Basics A cell-phone virus is basically the same thing as a computer virus — an unwanted executable file that “infects” a device and then copies itself to other devices. But whereas a computer virus or worm spreads through e-mail attachments and Internet downloads, a cell-phone virus or worm spreads via Internet downloads, MMS
How Cell-phone Viruses Work Read More »
Back in November 2012, EDN Brand Director Patrick Mannion published a teardown of a cell-phone battery charger. The design was not well done and received bad reviews. Redemption! I recently acquired a Mophie juice pack powerstation mini smartphone and USB-device battery charger that not only negates the previous teardown fiasco but also demonstrates the ability to provide more
Teardown: Cell-phone charger: nice idea done right Read More »
