We have a collection of almost 500+ Arduino projects with Code, Circuit Diagram, and detailed explanations completely free for everyone to build and learn on their own. The IR sensor has a 3-pin ...

In the center of the sensor module, you have the main pyroelectric sensor that allows IR rays to pass through and blog any other ... Connect the PIR sensor's VCC (or +) pin to the Arduino's 5V output.

IR Sensor Pins: Pins 3 (ground ... showing the current floor. Install Arduino IDE: If you don't have it already, download and install the Arduino IDE. Connect Components: Follow the wiring diagram and ...