Buzzer Unit is a mini passive buzzer unit, drived by 4KHz signal, that sounds up to 72dB within 10cm distance under rating input power.

With the feature of compact size, low-power consumption, awesome audio performance, and a protective housing. Applied for varied buzzer alarm scenario.

Features

• Drive signal:
• 4KHz oscillation frequency
• Up to 72dB (within 10cm, at rating power)
• Drive signal: 4KHz 1/2duty square wave

Include

• 1x BUZZER Unit
• 1x HY2.0-4P cable (20cm)

Specification

PinMap

Example

Arduino

#include <Arduino.h>

#define buzzer_pin 26
int freq = 4000;
int ledChannel = 0;
int resolution = 10;

void setup() {
ledcSetup(ledChannel, freq, resolution); //Sets the frequency and number of counts corresponding to the channel. 设置通道对应的频率和计数位数
ledcAttachPin(buzzer_pin, ledChannel); //Binds the specified channel to the specified I/O port for output. 将指定通道绑定到指定 IO 口上以实现输出
ledcWrite(ledChannel, 512); //Output PWM. 输出PWM
}

void loop() {
ledcWrite(ledChannel, 512); //Output PWM. 输出PWM
delay(3000);
ledcWrite(ledChannel, 0); //Output PWM. 输出PWM
delay(3000);
}

Shop with confidence – we've been serving the hobbyist electronics, Maker, and retro gaming communities since 2012.

• Satisfaction or refund guarantee
• Worldwide shipping via mail or courier
• 57,000+ customer reviews
• Secure website and payments