Product Overview
This buzzer module is a convenient way to add sound to your Arduino project, whether you need a simple alarm or a musical notification. Use the active buzzer for simple beeps, or the passive buzzer when you want to create custom tunes.
Specifications:
- Work Voltage: 3.3-5V
- PCB Dimension: 3.3cm*1.3cm
Connections
- Arduino----->Buzzer
- GND----> S
- Center pin---> No connection
- Any digital pin ---> - (minus sign)
✅ Active buzzer
- Has a built-in oscillator.
- Just apply DC voltage and it sounds.
- You can’t control the tone (fixed frequency).
- Easy to use for simple beeps or alarms.
⚙️ Passive buzzer
- Needs an external signal (PWM or square wave).
- You can control the tone and play melodies.
- More flexible, but needs more code.
Key differences
| Feature | Active | Passive |
| Oscillator | Yes | No |
| Tone control | No | Yes |
| Easier to use | Yes | Requires code |
