The Passive Buzzer Alarm Sensor Module produces a sound when driven by a 2–5 kHz square wave. It operates at 3.3–5 V and features mounting holes on the board for easy assembly.
- Type: Passive buzzer
- Operating voltage: 3.3–5 V
- Drive signal: 2–5 kHz square wave
- Pins: Vcc for power, GND for ground, I/O for microcontroller interfacing
- Board dimensions: 3.3 × 1.3 cm
- Mounting: Mounting holes on the board
- Package contents: 1 Passive KY-006 Buzzer Alarm module