Little Bird
Sound Detection and Microphone Module
This sound detection and microphone module provides both analogue and digital outputs for detecting sound with a microcontroller. The analogue output (AO) de...
This sound detection and microphone module provides both analogue and digital outputs for detecting sound with a microcontroller. The analogue output (AO) delivers a real-time voltage signal proportional to sound intensity, while the digital output (DO) triggers high or low based on an adjustable threshold set via the on-board potentiometer.
Compatible with Arduino and other 5V microcontrollers, it's a straightforward way to add sound detection or audio-level sensing to your project.
Key Features
- Dual Output – Analogue (AO) for real-time audio level, digital (DO) for threshold detection
- Adjustable Threshold – On-board potentiometer sets the digital trigger level
- High-Sensitivity Microphone – Detects voice, claps, knocks, and ambient sound
- Power Indicator LED – Shows when the module is powered
- Comparator Output LED – Lights up when sound exceeds the set threshold
- 3 mm Mounting Hole – Easy to secure in enclosures and projects
- 5V DC Operation – Standard supply voltage for Arduino and similar boards
Ideal For
- Sound-activated lighting and effects
- Clap or knock detection switches
- Noise-level monitoring
- Arduino and micro:bit audio projects
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
Find this product in
Audio & Video
Sensors & Input
Project Guides
Step-by-step builds that use this part
Related Tutorials
Free guides on learn.littlebird.com.au
