This project demonstrates how to use a buzzer module with an Arduino Nano to produce sound or generate alerts. Buzzer modules can be either active or passive, each requiring different driving methods.

A security system using an Arduino UNO, ultrasonic sensor, microphone, LDR sensor, buzzer, ... (I used an Arduino UNO) Active buzzer module; Sound sensor (conected to Analog 0) RGB light; LDR (light) ...

An active buzzer module is also included for audio signaling purposes. For environmental monitoring, the kit offers a DHT11 sensor mounted on a PCB, providing reliable temperature and humidity ...