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

The “snooper” here is an ordinary passive infrared (PIR ... USB programming interface, on-board voltage regulator, and Arduino IDE compatibility. The code is an Arduino project for the Digispark ...

In the microcontroller era today, Arduino ... 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 detect an intrusion ...

Present consists of just a PIR sensor and Arduino in a 3D printed enclosure to snap onto your monitor. When the PIR sensor no longer detects someone in range, it sends a notification over serial ...