[ladyada] ran across this excellent hack by [phillip]. Apparently there’s a clock, data, 5v and ground connection available in most modern video connections. (He even notes HDMI cable pins) He wrote some drivers and can now control i2c hardware directly from the
PC Mac. [Ladyada] notes that most laptops use an i2c bus for extra sensors as well. For now, the code only works on Mac OS X.
Interfacing your laptops onboard i2c
May 14, 2008 By 12 Comments