Description: 5V Passive Buzzer
5V passive buzzer is a small device that converts electrical signals into audible sound. It is called “passive” because it needs an external signal generator, such as a microcontroller, to operate.
Key Features:
- Operating Voltage: 5V DC
- Sound Frequency: Typically around 2kHz to 4kHz, depending on the driving signal
- Size: Varies, but typically small and compact, around 10-15mm in diameter
- Current Consumption: Low, usually in the range of 10-30mA
- Mounting: Can be through-hole or surface mount
Components and Structure:
- Housing: The outer shell, often made of plastic, which contains all the internal components.
- Diaphragm: A thin piece inside the buzzer that vibrates to produce sound when an AC signal is applied.
- Pins or Leads: Typically two pins (positive and negative) for electrical connection.
Usage Instructions:
- Power Supply:
- Connect the positive pin to a 5V DC power supply.
- Connect the negative pin to ground.
- Driving Signal:
- Connect a signal generator or a microcontroller (e.g., Arduino) to the positive pin to send a PWM or square wave signal.
- The frequency of the signal will determine the tone of the sound produced.
- Example Circuit:
- For a simple test, you can connect the buzzer’s positive pin to a GPIO pin on an Arduino and the negative pin to the ground. Use the
tone()
function in Arduino to generate different frequencies.
- For a simple test, you can connect the buzzer’s positive pin to a GPIO pin on an Arduino and the negative pin to the ground. Use the
Applications:
- Alarm Systems: Used in security systems to produce warning sounds.
- Timers and Alerts: Common in kitchen timers, microwave ovens, and other household appliances.
- Indicators: Used in various electronic devices to indicate states such as button presses or alerts.
PACKAGE INCLUDE
1 X 5V Passive Buzzer