Wireless sensor networks are nothing new to Hackaday, but [Felix]’s wireless PIR sensor node is something else entirely. Rarely do we see something so well put together that’s also so well designed ...

We may receive a commission on purchases made from links. The classic Halloween decorations will always have that hauntingly timeless charm, from the jack-o'-lanterns and black candles sitting on the ...

Here’s a great way to guard your front door on Halloween. [Sam Seide] built a motion controlled talking skeleton. The electronics are fairly straight forward, consisting of an Arduino, WAV shield, PIR ...

The presented schematic shows how to build a simple PIR motion sensor. PIR sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range.