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A researcher, professor and federal policy adviser, he guided students who went on to do groundbreaking work in connecting the world online.

Hartley is a Senior Editor at MacRumors and co-host of "The MacRumors Show" podcast; he contributes to daily news coverage and writes a wide range of content for the site. Various publications and ...

Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, and turning off when the sensor is released. The testing of the keys ...