Så här kopplar du Aktiv buzzer-modul till en Arduino UNO eller ESP32, med ett exempelsketch som du kan ladda upp direkt.
This project demonstrates how to control an active buzzer module with an Arduino Uno. The active buzzer generates a fixed-frequency tone whenever the signal pin is driven HIGH. The code repeatedly turns the buzzer on and off to create a simple beeping alert pattern.
/*
* ==================================================================
* Generated by Codey.online — https://www.codey.online
* ==================================================================
* Project : Active Buzzer Beep Demo
* Board : Arduino UNO (arduino:avr:uno)
* Parts : Active Buzzer Module
* Libraries : none (built-in)
*
* Codey Online is an AI-powered browser IDE for Arduino and ESP32.
* Describe your project and Codey writes the code, draws the wiring
* diagram and uploads it to your board, straight from the browser.
* This code is free to use, modify and share, without warranty.
* ==================================================================
*/
const int BUZZER_PIN = 8;
void setup() {
pinMode(BUZZER_PIN, OUTPUT);
Serial.begin(115200);
Serial.println(F("Active Buzzer Demo Ready"));
}
void loop() {
// Turn the buzzer on
Serial.println(F("Buzzer ON"));
digitalWrite(BUZZER_PIN, HIGH);
delay(200);
// Turn the buzzer off
Serial.println(F("Buzzer OFF"));
digitalWrite(BUZZER_PIN, LOW);
delay(800);
}
Wiring diagram and example code generated by Codey.online — https://www.codey.online
This project demonstrates how to control an active buzzer module using an ESP32. The sketch turns the buzzer on and off in a repeating beep pattern while outputting the current state to the Serial Monitor.
/*
* ==================================================================
* Generated by Codey.online — https://www.codey.online
* ==================================================================
* Project : Active Buzzer Beep Demo with ESP32
* Board : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
* Parts : Active Buzzer Module
* Libraries : none (built-in)
*
* Codey Online is an AI-powered browser IDE for Arduino and ESP32.
* Describe your project and Codey writes the code, draws the wiring
* diagram and uploads it to your board, straight from the browser.
* This code is free to use, modify and share, without warranty.
* ==================================================================
*/
// Active Buzzer Demo for ESP32 DEVKIT V1
// Connect the buzzer signal pin to GPIO 4 (D4 on silkscreen)
const int BUZZER_PIN = 4;
void setup() {
Serial.begin(115200);
pinMode(BUZZER_PIN, OUTPUT);
digitalWrite(BUZZER_PIN, LOW);
Serial.println("Active Buzzer Demo Ready");
}
void loop() {
// Turn the buzzer ON
Serial.println("Buzzer ON");
digitalWrite(BUZZER_PIN, HIGH);
delay(200);
// Turn the buzzer OFF
Serial.println("Buzzer OFF");
digitalWrite(BUZZER_PIN, LOW);
delay(200);
// Second beep
Serial.println("Buzzer ON");
digitalWrite(BUZZER_PIN, HIGH);
delay(200);
// Pause between beep sequences
Serial.println("Buzzer OFF (Pause)");
digitalWrite(BUZZER_PIN, LOW);
delay(1000);
}
Wiring diagram and example code generated by Codey.online — https://www.codey.online