Passive/Active Buzzer Module with High/Low Level Trigger [EOL]

OpenELAB Technology Ltd. Verified independent store

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This module provides a simple way to add sound to your projects. It's available in both active and passive configurations, offering flexibility for various applications. The module can be triggered by either a high or low-level signal, simplifying integration with microcontrollers and other digital systems. Features Active or Passive Buzzer Options: Choose the version that best suits your needs. Active Buzzer: Contains an internal oscillator, producing a sound when power is applied. Passive Buzzer: Requires an external oscillating signal (2KHz - 5KHz) to produce sound. Can create different tones/sounds like "doremi". High/Low Level Trigger: Can be activated by either a high or low-level signal on the I/O pin. Wide Voltage Range: Operates from 3.3V to 5V, making it compatible with many microcontrollers. Easy to Install: Features a fixed screw hole for easy mounting. Compact Size: Small PCB dimensions of 32mm * 13mm. NPN Transistor Driver: Uses S8050 (active buzzer) or S8550 (passive buzzer) NPN transistor for efficient driving. Active Buzzer vs. Passive Buzzer Here's a breakdown of the key differences: Feature Active Buzzer Passive Buzzer Internal Oscillator Yes No Sound Generation Produces sound when power is applied Requires an external oscillating signal to produce sound Tone Control Single tone Tone can be controlled by varying the frequency of the input signal Driving Circuit S8050 Transistor S8550 Transistor Trigger High Level Trigger Low Level Trigger Important Note: The "source" in "active source" refers to the oscillation source, not the power source. Wiring Instructions VCC: Connect to a 3.3V - 5V power supply (can be directly connected to 5V/3.3V single-chip microcomputers). GND: Connect to Ground. I/O: Connect to the microcontroller I/O port. Active Buzzer: High-level trigger Passive Buzzer: Low-level trigger Dimensions PCB Size: 32mm x 13mm Applications Alarm devices Electronic doorbells Timers Educational projects Any application requiring audible feedback Included 1 x Buzzer Module (Active or Passive - select option) Show more