Arduino PIR Motion Sensor Interfacing Circuit Diagram. Connect the PIR sensor's VCC (or +) pin to the Arduino's 5V output. ... This line starts the else block, which will execute if the pirState is ...

Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor alarm is shown in Fig. 3. It consists of a PIR motion sensor (MS1) ...

VCC - Provides power for the module, Connect to the 5V pin of the Arduino. GND - Ground Connected to Ground pin of the Arduino. SCL – Module output (HIGH (3.3 V) motion detected/LOW (0 V) idle). CDS – ...

This repository demonstrates how to implement motion detection using a PIR sensor with an LED and serial output across multiple platforms like Arduino Uno, ESP32, Raspberry Pi Pico, and STM32 Nucleo.

smart_home_security_arduino.png: Image of the actual model created in TinkerCad. smart_home_security_block_diagram.pdf: Block diagram of the system. smart_home_security_model.brd: Board layout of the ...