Buzzer Module for Arduino
Buzzer Module for Arduino - Buzzers, from its root word "buzz," meaning make a low continuous humming sound. This module does precisely that. It creates a buzzing sound by energizing the transducers and making it vibrate.
You may use this buzzer in your alarm system, as a timer, an access tone, or even the keystroke of an input.
This buzzer module is 5V and only needs one digital pin to connect to your Arduino.
Buzzer Module for Arduino – Description
The Active Buzzer Module for Arduino works as audio signaling equipment. It can be in the form of piezoelectric, mechanical or electromechanical. Hence, the device is a perfect solution for alarm systems and timer projects to give it the potential through only a single unit of the pin. The 5V active buzzer module integrates high-quality material that’s why the device is durable in use.
Further, the active buzzer module has the concern to the ring as long as it is electrified. The 5V DC Electronic Part Active Buzzer Module generates a single-tone sound when it receives high-signal frequencies. However, you can implement the passive buzzer module to produce different tones. It comprises a piezoelectric buzzer with an inbuilt oscillator to produce a sound of 2.5 kHz (approx.) when a signal is high.
The active buzzer module equips inbuilt electronics to produce the buzzer sound. As soon as you connect power to it, the unit starts producing sound without using any external electronics. Also, you don’t need to connect an Arduino component to generate the sound.
How to test?
Amongst others, the simplest and easy-to-use testing method to check if it working properly is to connect a 5V power supply that is able to deliver 30mA or more energy through pins.The unit must produce sound when it is connected to a 5V. Users can also connect 5V from an Arduino to the buzzer since Arduino 5V can be used directly for testing motives.
Controlling the Active Buzzer Module Using Arduino
Since an Active Buzzer Module is designed to switch the buzzer on and off, it can also be implemented in an alarm circuit as well as an audible indicator. The buzzer module extracts more current than the maximum current of an Arduino. Therefore, it is essential to join the buzzer with Arduino using a transistor.
While integrating the connection mechanism, a transistor can be used by keeping in mind not to overload the Arduino pin. Under certain circumstances, you can draw only 2mA from the Arduino pin but the full current by the buzzer is taken from the Arduino 5V using the transistor. It is also to note that a transistor works as a switch that can pass more than 20mA to the buzzer.
Active Buzzer Module for Arduino – Specifications
The sound-producing unit comes loaded with several technical specifications as given below:
Operating Voltage 3.5V ~ 5.5V
Maximum Current 30mA / 5VDC
Minimum Sound Output 85dB @ 10cm
Storage Temperature -30°C ~ 105°C [-22°F ~ 221°F]
Resonance Frequency 2500Hz ± 300Hz
Working Temperature -20°C ~ 70°C [-4°F ~ 158°F]
Measurement 18.5mm x 15mm [0.728in x 0.591in]
Other Arduino Buzzer Modules
Make sure the buzzer you are integrating with Arduino must draw less than 20mA. Therefore, there’re some low current buzzers that you can connect directly with an Arduino pin. In case you have a buzzer that operates a high voltage (more than 5V) can be used in collaboration with a transistor.