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Crowtail- Buzzer


The buzzer module is for making sound in your project. It sounds when activated by a logic HIGH signal. Connect the buzzer to any of the D(digital) ports of Crowtail- Base Shiled, you can easily make it sounds with setting the related ports to logic HIHG. The buzzer module can be also connected to an analog pluse-width modulation(PWM) output to generate various of tones.

Model: CT0003BU



  • Easy to use piezoelectric buzzer
  • Standard 3-pin Crowtail Cables


  • Operating Voltage: 5V
  • Sound Output: ≥85dB
  • Resonant Frequency: 2300±300Hz
  • Dimensions(mm):20.0(L)x20.0(W)x9.8(H)


Follow these simple steps to build a Crowtail circuit using the buzzer:

1.Hardware connection Use the Crowtail - Base Shield and connect the Crowtail - Buzzer module to the shield using a designated Crowtail Interface as shown below:


2.Upload the following sample sketch to make the Buzzer make a beeping noise:

#define buzzer 5 //connect Buzzer to digital pin5
void setup() {                
 // initialize the digital pin5 as an output.
 pinMode(buzzer, OUTPUT);     

void loop() {
 digitalWrite(buzzer, HIGH);   // set the Buzzer on
 delay(500);                  // for 500ms
 digitalWrite(buzzer, LOW);   // set the Buzzer off