In the microcontroller era today, Arduino ... signal is detected at its sensor input port. As indicated, our system requires a “Logic High (H)” level input to wake up. The best sensor you can use to ...

Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting ... This bird’s brain is an Arduino Nano, which is protected from the 12V supply with a boost converter.

Wireless sensor networks are nothing new to Hackaday, but [Felix]’s wireless PIR sensor node is something ... a very tiny Arduino compatible board with solder pads for an RFM12B and RFM69 ...