Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob
VISIT OUR OTHER SITES: THE AWESOMER | 95OCTANE

Technabob is reader-supported. When you buy through links on our site, we may earn an affiliate commission.
As an Amazon Associate I earn from qualifying purchases. Learn more.

Project HiJack Steals Power from iOS Headphone Jack

by Shane McGlaun
Advertisement

I’m not a developer of accessories or gear for iOS devices, but I would have to imagine that much of the cost to develop the accessories would have to be the fees associated with Apple certification and the plugs and such you need to work with the docking connector. Some engineering students at the University of Michigan have developed a cool new device called Project HiJack that should make it easier and cheaper to make accessories for iOS devices.

hijack_power_headphone_jack_iphone

HiJack is a little device that plugs into the headphone port of the iPhone or other iOS device. Once plugged in the thing can take the 22kHz audio signal and convert that into 7.4mW of power for anything you want to run. The students say that is enough juice to power a TI MSP430 microcontroller and attached electronics.

The HiJack can be produced in quantities for as little as $2.34 (USD) each making it much cheaper than Apple approved gear. There are already a few products on the market that use the headphone port for power and connectivity, like credit card readers. The HiJack can also communicate with an app on the device via the headphone port. You can read more in the original paper here [PDF], and grab source code and schematics for the project on Google Code.

[via Ars Technica]



Giant LEGO Millennium Falcon

Giant LEGO Millennium Falcon

Zippo HeatBank 9s

Zippo HeatBank 9s

Kensington StudioDock

Kensington StudioDock

Advertisement
An Eleanor Mustang from “Gone in 60 Seconds” Is for Sale

An Eleanor Mustang from “Gone in 60 Seconds” Is for Sale

Ann Arbor, Michigan Police Adding Mustang Mach-Es to Their Fleet

Ann Arbor, Michigan Police Adding Mustang Mach-Es to Their Fleet

David Hasselhoff’s Knight Rider K.I.T.T. Replica for Sale

David Hasselhoff’s Knight Rider K.I.T.T. Replica for Sale

Advertisement