Buzzer alarm 95DB

Buzzer Alarm 95 DB Description

A buzzer alarm rated at 95 dB is designed to produce a loud and attention-grabbing sound. This type of buzzer is commonly used in various applications, including alarms, timers, alert systems, and notification devices. The high decibel level (95 dB) ensures that the sound can be heard in noisy environments, making it effective for alerting people to critical situations.

Specifications

Here are typical specifications you might find for a 95 dB buzzer alarm:

• Sound Level: 95 dB at 1 meter
• Operating Voltage: Usually 3V to 12V DC (check specific model)
• Current Consumption: Typically between 20 mA to 150 mA (depends on voltage and design)
• Frequency: Commonly around 2 kHz to 4 kHz
• Dimensions: Varies by model, but can range from small (e.g., 20mm diameter) to larger (e.g., 50mm diameter)
• Type: Piezoelectric or electromagnetic
• Material: Plastic housing, with/or metal components for durability
• Temperature Range: -20°C to 70°C
• Connection Type: Wire leads or connectors for easy installation
• Mounting Type: Through-hole or surface mount, depending on design

Example Code to Control a Buzzer Alarm

Here’s an example of how to use a 95 dB buzzer with an Arduino to create a basic alarm system. The code below turns the buzzer on for a specified duration.

Required Components:

• 1 x Arduino board (e.g., Arduino Uno)
• 1 x 95 dB buzzer
• 1 x 220-ohm resistor (optional for limiting current)
• Jumper wires
• Breadboard (optional)

Circuit Diagram:

• Buzzer Positive Terminal: Connect to a digital pin on the Arduino (for example, pin 9)
• Buzzer Negative Terminal: Connect to the Arduino GND
• If using a resistor: Connect it in series with the buzzer.

Arduino Code:

Copy// Define the pin for the buzzer
const int buzzerPin = 9; 

// Duration the alarm will sound (in milliseconds)
const int alarmDuration = 1000; // 1 second

void setup() {
  // Set the buzzer pin as an output
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  // Turn the buzzer on
  digitalWrite(buzzerPin, HIGH);
  
  // Wait for the duration of the alarm
  delay(alarmDuration);
  
  // Turn the buzzer off
  digitalWrite(buzzerPin, LOW);
  
  // Wait for a while before restarting (can adjust as needed)
  delay(2000); // Wait for 2 seconds before sounding again
}

Explanation of the Code:

• The buzzer is connected to digital pin 9 of the Arduino.
• The setup() function initializes the buzzer pin as an output.
• In the loop(), the buzzer is turned on for a specified duration (alarmDuration) and then turned off. The loop will keep repeating, sounding the buzzer every 2 seconds.

Conclusion

This implementation showcases how a 95 dB buzzer alarm can be effectively used in conjunction with an Arduino microcontroller. The buzzer can be integrated into various systems and applications, providing a reliable alert system for a wide range of needs. Always consult the specific datasheet for your buzzer model for precise specifications and connection details.