Interfacing an Active Buzzer with Arduino //Sketch-Straight beep int active_buzzer =11;// connect the active buzzer to the pin 7 of Arduino. void setup() { pinMode(active_buzzer,OUTPUT); } void loop() { digitalWrite(active_buzzer,HIGH); delay(5); digitalWrite(active_buzzer,LOW); delay(1); } //Sketch-Alarm beep int active_buzzer =11;// set a variable name active buzzer and assign pin to 3 void setup() { pinMode(active_buzzer,OUTPUT);// set pin as an output } void loop() { digitalWrite(active_buzzer,HIGH); delay(500); digitalWrite(active_buzzer,LOW); delay(5); }