Technical Specifications
- Buzzer Type: Passive Piezo Buzzer
- Operating Voltage: 3.3V – 5V DC
- Resonant Frequency: ~2kHz (adjustable via PWM)
- Sound Output: Up to 80-90 dB (distance dependent)
- Current Consumption: Very low (typically <30mA)
- Interface: Digital pin + GND (PWM recommended for tones)
- Module Style: PCB-mounted or standalone piezo

















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