What it is
The ShillehTek KY-006 Passive Piezo Buzzer Alarm Module for Arduino Projects is a simple sound output module that generates beeps, tones, and melodies when driven with a PWM signal. Because it’s a passive piezo buzzer, you control the tone frequency in code—useful for alarms, timers, button feedback, sensor alerts, and STEM builds without needing a speaker amplifier.
Pins
Refer to the silkscreen labels on the board/module and the listing photos for exact pin names and orientation. In general, KY-series passive buzzer modules expose a signal/control pin plus power and ground; connect to your Arduino (or similar microcontroller) and drive the signal with PWM to create tones.
Technical Specifications
| Item | Details |
|---|---|
| Product type | Passive piezo buzzer sound module (KY-006) |
| Control method | PWM / timed digital toggling (frequency set in code) |
| Typical use cases | Alarms, timers, button feedback, sensor alerts, melodies |
| Pin labeling / pinout | See listing photos and silkscreen labels on the module |
| Electrical specifications | Varies by module revision |
Frequently Asked Questions
How do I use the KY-006 passive piezo buzzer with an Arduino?
Wire the module to power and ground, then connect its signal pin to an Arduino GPIO that can output PWM. Use a tone/PWM frequency in code to generate beeps, tones, and simple melodies.
What’s the difference between a passive buzzer (KY-006) and an active buzzer?
A passive buzzer needs a PWM (or toggled) signal and lets you choose the frequency for different notes. An active buzzer typically makes a fixed tone when powered on, with less control over pitch.
Can I play melodies on the KY-006 buzzer module?
Yes. Because it’s passive, you can change the PWM frequency over time to play notes and simple melodies, making it great for STEM projects and audio feedback.
Does the KY-006 need a speaker amplifier?
No—this module is a quick way to add basic audio feedback without a separate speaker amplifier. For louder audio or music-quality sound, a dedicated speaker and amplifier are usually better.
Where can I find the KY-006 pinout and wiring diagram?
Use the silkscreen labels on the PCB and the product photos for the exact pin names and orientation. This helps ensure correct wiring across different KY-006 module revisions.