12 Volt Piezo Buzzer Plate (25mm)

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Component Name

Overview

The 12 Volt Piezo Buzzer Plate (25mm) is a compact, low-power acoustic device designed to produce a high-pitched audible signal when an electrical current is applied. This component is commonly used in various IoT applications, such as alarm systems, monitoring devices, and interactive projects, where an audible notification or alert is required.

Functionality

The 12 Volt Piezo Buzzer Plate (25mm) operates on the principle of piezoelectricity, where an electrical current is converted into mechanical energy, producing a sound wave. When a 12V DC power supply is applied to the buzzer's terminals, the piezoelectric material within the device deforms, creating a pressure wave that generates a high-frequency sound (typically in the range of 2-4 kHz).

Key Features

Operating Voltage: 12V DC
Current Consumption: Low current rating (typically <20mA) makes it suitable for battery-powered or low-power applications.
Sound Frequency: Produces a high-pitched sound in the range of 2-4 kHz.
Sound Pressure Level (SPL): Typically around 80-90 dB at 1 meter distance.
Plate Size: 25mm in diameter, making it compact and easy to integrate into small devices or circuits.
Mounting Options: The buzzer plate has a flat surface and can be mounted using adhesives, screws, or clips.
Polarity: The buzzer is polarized, with a positive (+) and negative (-) terminal. Correct polarity is essential to ensure proper operation and prevent damage.
Environmental Operating Range: Typically operates within a temperature range of -20C to 70C and humidity levels up to 80% RH.
Reliability and Durability: Designed for long-term reliability and durability, with a typical lifespan of 100,000 to 500,000 cycles.

Typical Applications

Alarm systems and warning devices
IoT sensor nodes and monitoring devices
Interactive projects, such as robots, drones, and smart home systems
Medical devices, such as patient monitoring systems
Industrial control systems and automation

Precautions and Considerations

Handle the buzzer with care to avoid mechanical damage or electrical shock.
Ensure correct polarity when connecting the buzzer to a power source.
Avoid exposing the buzzer to excessive voltage, current, or temperature fluctuations.
Use a suitable driver circuit or switching component to control the buzzer's operation.
Consider using a resistor or voltage regulator to limit the voltage and prevent overvoltage conditions.

By following these guidelines and precautions, the 12 Volt Piezo Buzzer Plate (25mm) can be effectively integrated into various IoT applications, providing a reliable and efficient means of generating audible notifications and alerts.

Pin Configuration

Component Documentation: 12 Volt Piezo Buzzer Plate (25mm)
Overview
The 12 Volt Piezo Buzzer Plate (25mm) is a compact, high-quality piezoelectric buzzer suitable for various IoT applications, including alarm systems, warning devices, and notification systems. This component is designed to produce a high-pitched tone when an electrical signal is applied to it.
Pin Description
The 12 Volt Piezo Buzzer Plate (25mm) has two pins, which are explained below:
Pin 1: Positive Terminal (+)
Function: Connects to the positive voltage supply (VCC) or the signal source.
Description: This pin is responsible for receiving the electrical signal that triggers the buzzer to produce sound.
Pin 2: Negative Terminal (-)
Function: Connects to the negative voltage supply (GND) or the return path.
Description: This pin completes the electrical circuit and provides a return path for the signal.
Connecting the Pins
To connect the pins of the 12 Volt Piezo Buzzer Plate (25mm), follow these steps:
Step 1: Connect the Positive Terminal (+) to the Signal Source
Connect Pin 1 (Positive Terminal) to a digital output pin of a microcontroller or a signal source.
Ensure the signal source provides a voltage of 12V DC.
Step 2: Connect the Negative Terminal (-) to the GND
Connect Pin 2 (Negative Terminal) to the Ground (GND) of the power supply or the microcontroller.
Ensure a secure connection to prevent any electrical noise or interference.
Example Connection Diagram
Below is an example connection diagram for the 12 Volt Piezo Buzzer Plate (25mm) with an Arduino Board:
```
+---------------------------+
| Arduino Board |
+---------------------------+
|
|
v
+---------------------------+
| Digital Output Pin (e.g., D13) |
+---------------------------+
|
|
v
+---------------------------+
| 12V Piezo Buzzer Plate |
| (25mm) |
+---------------------------+
| Pin 1 (Positive Terminal) |
| Connect to D13 |
+---------------------------+
| Pin 2 (Negative Terminal) |
| Connect to GND |
+---------------------------+
| GND |
+---------------------------+
```
Important Notes
Ensure the buzzer is connected correctly to prevent damage or incorrect operation.
The recommended operating voltage for this buzzer is 12V DC. Do not exceed this voltage to prevent damage to the component.
When connecting the buzzer to a microcontroller, ensure the digital output pin can provide sufficient current to drive the buzzer.
By following these guidelines, you can successfully integrate the 12 Volt Piezo Buzzer Plate (25mm) into your IoT project and achieve the desired notification or alarm functionality.

Code Examples

12 Volt Piezo Buzzer Plate (25mm) Documentation

Overview

The 12 Volt Piezo Buzzer Plate (25mm) is a compact, high-decibel buzzer designed for use in a variety of applications, including alarm systems, warning devices, and interactive projects. This component is ideal for IoT projects that require a loud, high-quality audible alert.

Pinout and Connection

The buzzer has two terminals: a positive (+) terminal and a negative (-) terminal. The positive terminal is marked with a "+" sign or a red wire, while the negative terminal is marked with a "-" sign or a black wire.

Technical Specifications

Operating Voltage: 12V DC
 Operating Current: 20mA
 Sound Pressure Level: 85dB
 Frequency: 2.4kHz
 Dimensions: 25mm diameter, 10mm height
 Mounting: Adhesive backing for easy attachment to any surface

Code Examples

### Example 1: Basic Buzzer Control with Arduino

In this example, we'll use an Arduino board to control the buzzer. We'll connect the buzzer to digital pin 9 and ground.

Hardware

Arduino Board (e.g. Arduino Uno)
 12 Volt Piezo Buzzer Plate (25mm)
 Breadboard
 Jumper wires

Code
```c++
const int buzzerPin = 9;  // digital pin 9

void setup() {
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  digitalWrite(buzzerPin, HIGH); // turn the buzzer on
  delay(1000); // wait 1 second
  digitalWrite(buzzerPin, LOW); // turn the buzzer off
  delay(1000); // wait 1 second
}
```
This code will turn the buzzer on and off every second, creating a continuous beeping sound.

### Example 2: IoT Alarm System with Raspberry Pi and Python

In this example, we'll use a Raspberry Pi and Python to create a simple alarm system using the buzzer. We'll connect the buzzer to GPIO pin 17 and ground.

Hardware

Raspberry Pi (e.g. Raspberry Pi 4)
 12 Volt Piezo Buzzer Plate (25mm)
 Breadboard
 Jumper wires
 Power supply for Raspberry Pi

Code
```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)  # set GPIO 17 as output

while True:
    # simulate an alarm condition (e.g. sensor detection)
    if True:
        print("Alarm triggered!")
        GPIO.output(17, GPIO.HIGH)  # turn the buzzer on
        time.sleep(5)  # wait 5 seconds
        GPIO.output(17, GPIO.LOW)  # turn the buzzer off
    time.sleep(1)  # wait 1 second before checking again
```
This code will turn the buzzer on for 5 seconds when an alarm condition is detected (in this case, a simulated condition).

Remember to adjust the power supply and voltage regulator according to your specific setup and requirements.