This voltage can be read by an Arduino digital input and then the Arduino can act upon it. The PIR Motion Sensor on the left is made by Parallax and sold by Radio Shack. The one on the right comes ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion ... and Arduino IDE compatibility. The code is an Arduino project for the Digispark Attiny85 to turn on ...

Here is one simple circuit of a general-purpose white LED security light with Passive Infrared (PIR) Motion sensing ... T1 & T2. PIR sensor modules usually have a 3-pin connection: Vcc (+) , Output, ...

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic ... correspond to where you plugged the PIR sensor and power relay into the Arduino.

Like the Arduino and Raspberry ... simple Internet-connected motion detector that [Eric William] has come up with. With just a Wemos D1 Mini, a standard PIR sensor, and some open source code ...