Build a motion-sensing alarm with a PIR sensor and an Arduino microcontroller. In this simple project, we’ll build a motion-sensing arduino alarm using a PIR (passive infrared) sensor and an Arduino microcontroller.
The Queen may be discussing weighty matters of state at an audience with David Cameron but that does not stop her from taking a thrifty approach to keeping her guest warm. This revealing image, taken a
GENEVA — The Western Black Rhino of Africa was declared officially extinct Thursday by a leading conservation group. The International Union for Conservation of Nature said that two other subspecies of
Kim Jong-un gives order and blasts Washington with angry rhetoric after US stealth bombers flown over South Korea. North Korea's leader has responded to America's use of nuclear-capable B-2 bombers in
If you want to know how to make money on mobile apps in China, you should probably look at how Hollywood makes money on its films in that country. The parallels are uncanny: In movies, it’s action films
We were a pain, I know, bugging you guys to vote for us in 2010 Golden Retrevo Awards. But it paid off — we won a 2010 Golden Retrevo Award for outstanding achievements in the “All Things Apple” space.