DC 3-24V 90DB Continuous Beep Alarm Electroni...

$ 0.61

DescriptionThis is a Small Continuous Sound Electronic Active Buzzer. It is great to add Audio Alert to your electronic designs. It operates on a DC 3-24V supply, uses a coil element to generate an audible tone. Model No. : SFM-27; Sound-making Type : Continuous Sound; Alarm Height: 15mm Alarm Diameter: 29mmAlarm Height: 15mm2 Mounting Holes distance: 40mm2 Wires length: 105mmRated Voltage: 12VOperating Voltage: 3-24VRated Current(MAX): 20mAMin Sound Output at 10 cm: 95 DBResonant Frequency: 3100±500Operating Temperature: -20 to 80 (Degrees Celsius)Color: WhiteGetting started with the DC 3-24V 90DB Continuous Beep Alarm Electronic Buzzer SounderThe following sketch shows how to switch the buzzer on and off. Arduino pin number 8 is used to control the buzzer, but any digital output pin can be used by changing the pin number at the top of the sketch.Hardware requiredArduino unoBreadboardBuzzer100 Ohm resistorConnecting the Hardware Upload the following code#define BUZZER_PIN 10 void setup() { pinMode(BUZZER_PIN, OUTPUT); } void loop() { // pulse the buzzer on for a short time digitalWrite(BUZZER_PIN, HIGH); delay(100); digitalWrite(BUZZER_PIN, LOW); delay(2000); }Testing the circuitIn the sketch the buzzer is pulsed on for a short duration (2000ms) and then switched off for 2 seconds (or 2000ms). This produces a short sharp periodic beep.Package includes: 1×DC 3-24V 90DB Continuous Active Buzzer