Electret Microphone Amplifier Module (GY-MAX4466) — Overview
The Electret Microphone Amplifier Module (GY-MAX4466) is a compact, high-performance sound sensor designed for clear voice capture and precise audio detection. Built around the low-noise MAX4466 op-amp, this module provides adjustable gain and a clean analog output suitable for Arduino, Raspberry Pi (with ADC), and other microcontroller projects.
Key Features
- Integrated MAX4466 low-noise operational amplifier for clear amplification
- Onboard potentiometer for adjustable gain control to match your environment
- High sensitivity electret condenser microphone captures soft sounds
- Analog output (OUT) for real-time audio level measurement
- Operating voltage: 2.4V to 5.5V for compatibility with common microcontrollers
- Compact design with mounting holes for easy enclosure or panel installation
Technical Specifications
- Microphone type: Electret condenser microphone
- Amplifier IC: MAX4466 (low-noise op-amp)
- Output type: Analog voltage (single-ended)
- Gain: Adjustable via potentiometer (user-configurable)
- Operating voltage: 2.4 V to 5.5 V
- Board size: Compact for embedded and portable projects
- Mounting: PCB mounting holes for screws or standoffs
Why Choose the GY-MAX4466 Microphone Amplifier?
- Crystal clear sound capture with reduced background noise thanks to the MAX4466
- Adjustable gain lets you tune sensitivity for loud or quiet environments
- Quick to integrate with Arduino and other microcontrollers using the analog output
- Small footprint makes it perfect for wearables, toys, robotics, and portable recorders
Typical Applications
- Voice-controlled Arduino projects and voice recognition prototypes
- Sound detection alarms and noise monitoring systems
- Audio visualization: LED VU meters, sound-reactive displays, and equalizers
- DIY voice recorders and interactive toys
- Robotics requiring audio triggers and real-time sound measurement
Connection Guide and Usage Tips
Wiring
- VCC: Connect to 2.4 V to 5.5 V supply (commonly 3.3 V or 5 V from microcontroller)
- GND: Connect to system ground
- OUT: Analog output — connect to an ADC input on your microcontroller
Quick Start
- Wire VCC, GND, and OUT to your microcontroller or ADC module.
- Power the board and open an analog input monitor (for example, Arduino Serial Monitor).
- Slowly adjust the onboard potentiometer until you get a suitable amplitude for your application.
- Use smoothing or peak detection code in your firmware to read audio levels or trigger events.
Design Tips
- Place the microphone away from high-frequency switching components to reduce interference.
- Use decoupling capacitors on the power rail if you experience noise from other circuitry.
- For recording applications, pair with an ADC that has sufficient sampling rate and resolution.
Who Should Buy This Module?
Students, makers, developers, and engineers who need a reliable, low-noise audio front end for prototyping or production can benefit from the GY-MAX4466. It is suitable for educational projects, interactive installations, and professional prototyping where clear audio pickup and adjustable sensitivity are required.
Buy Electret Microphone Amplifier Module in Islamabad and Pakistan
At Colgroad.com, we offer the original GY-MAX4466 with fast delivery in Islamabad and across Pakistan. The module is tested for performance and ready to integrate into your next voice-activated or sound-reactive project.
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