Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012
Active buzzer (beeper) - KY-012

Active buzzer (beeper) - KY-012

Active buzzer module

00080
3
€3.20

 
Introduction:
  • (1) The module uses 9012 transistor drive
  • (2) Operating voltage 3.3V-5V
  • (3) Fixing bolt holes for easy installation
  • (4) PCB size: 2.0cm * 1.5cm
Interface definition:
  • (1) VCC external 3.3V-5V voltage (which can be connected directly with the 5v microcontroller and 3.3v microcontroller)
  • (2) GND External GND
  • (3) I / O external microcontroller IO port

Arduino test code:
int speakerPin = 8 ;/ / control horn pin
  int potPin = 4 ;/ / control pin adjustable resistor
  int value = 0;
  void setup ()
{
  pinMode (speakerPin, OUTPUT);
  }
  void loop () {
value = analogRead (potPin); reading resistor values pin
  digitalWrite (speakerPin, HIGH);
delay (value); adjust the speaker sound of the time;
  digitalWrite (speakerPin, LOW);
delay (value); adjust the speaker does not ring a time;
  }

Type:
Module for sound
Operating Voltage:
3V-5V
Brand:
Funduino
Mounting:
separate module
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