buzzer model
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🔔 Passive Buzzer Module – 5V for Arduino, with Driver Circuitَ
📝 Overview
The Passive Buzzer Module is a compact plug-and-play component designed to easily generate tones, melodies, and alerts when used with a microcontroller like Arduino or ESP32. Unlike active buzzers, this passive buzzer requires a PWM or square wave signal, giving you full control over the pitch and duration of sound.
⚙️ Key Features
Operating Voltage: 3.3V to 5V
Built-in transistor driver for direct connection to Arduino digital pins
Passive buzzer type – tone frequency controlled by code
PCB-mounted module with header pins for easy prototyping
Onboard marking for VCC, GND, and signal (S)
Compact and breadboard-friendly design
📦 Technical Specifications
| Parameter | Value |
|---|---|
| Voltage Range | 3.3V – 5V |
| Sound Output | 80–85 dB (adjustable via code) |
| Control Method | PWM or tone() function |
| Resonant Frequency | ~2.4kHz typical |
| Dimensions | ~22 × 12 × 10 mm |
| Interface Pins | VCC, GND, Signal (S) |
| Mounting | 3-pin header (straight or angled) |
🛠️ Wiring with Arduino Uno
| Buzzer Module | Arduino Uno |
|---|---|
| VCC | 5V |
| GND | GND |
| S (Signal) | D8 (or any PWM digital pin) |
🧪 Sample Code
CopyEditvoid setup() { pinMode(8, OUTPUT); } void loop() { tone(8, 1000); // Play 1kHz tone on pin 8 delay(500); noTone(8); // Stop tone delay(500); }
🎯 Common Applications
Arduino sound effects
Alarm and alert systems
Melody generation in interactive projects
Timers and status indicators
✅ Resources
🎥 YouTube Tutorial: https://youtu.be/jgBZ2HDG5Ks?si=EFsLhzWIfbewZ1XS