Sensor used is a digital PIR sensor module; This is a basic circuit. It is possible to control Hi-Power sirens (pin D6), and flashers (pin D5) using suitable transistor/mosfet drivers; If you wish to ...

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.