INMP441 I2S MEMS Microphone Module
Original price was: ₵65.00.₵60.00Current price is: ₵60.00.
The INMP441 I2S MEMS Microphone Module is a compact digital microphone for ESP32, Arduino, IoT, voice recognition, sound detection and audio recording projects. It provides clear digital audio output through the I2S interface, making it ideal for smart devices, voice-controlled systems and embedded audio applications.
6 in stock
The INMP441 I2S MEMS Microphone Module is a high-performance digital microphone module designed for audio capture in embedded electronics projects. It uses the I2S digital audio interface, allowing it to connect directly to compatible microcontrollers such as ESP32 without requiring an external audio codec.
This module is suitable for projects that require clear voice input, sound detection, audio sampling, voice recognition or smart device interaction. It is commonly used in ESP32 voice assistant projects, IoT sound monitoring systems, smart home devices, robotics, audio recording experiments and school electronics projects.
Unlike ordinary analog microphone modules, the INMP441 outputs digital audio, which helps reduce noise and improves signal quality when working with supported microcontrollers. Its compact size and low power consumption make it suitable for battery-powered and portable projects.
For ESP32 users, this module is one of the best options for building voice-controlled systems, audio detection projects and AI/IoT voice input applications. It is also useful for STEM learners, electronics hobbyists, facilitators and project builders working on modern embedded audio systems.
Key Features:
- Digital I2S audio output
- High-performance MEMS microphone
- Omnidirectional sound capture
- Suitable for ESP32 voice projects
- Low power consumption
- Compact module size
- Better signal quality than many analog microphone modules
- Ideal for voice recognition and sound detection
- Suitable for IoT, robotics and smart home projects
Technical Specifications:
- Microphone Type: MEMS digital microphone
- Interface: I2S
- Output: Digital audio
- Data Resolution: 24-bit
- Supply Voltage: 1.8V to 3.3V
- Typical Current Consumption: 1.4mA
- Signal-to-Noise Ratio: 61 dBA
- Sensitivity: -26 dBFS
- Frequency Response: 60 Hz to 15 kHz
- Pickup Pattern: Omnidirectional
- Compatible Boards: ESP32 and other I2S-supported microcontrollers
Pin Description:
- VCC: Power supply
- GND: Ground
- SCK: I2S serial clock
- WS: Word select / left-right clock
- SD: Serial data output
- L/R: Left or right channel selection
Applications:
- ESP32 voice recognition projects
- Voice assistant projects
- Smart home control systems
- IoT sound monitoring
- Audio recording experiments
- Robotics voice input
- Sound-activated systems
- Noise detection projects
- Embedded audio processing
- STEM and school electronics projects
Recommended For:
- ESP32 projects
- Arduino audio experiments with I2S-supported boards
- Voice-controlled devices
- AI voice input systems
- IoT audio monitoring
- Smart shower voice control projects
- Home automation projects
- Robotics and embedded systems
Important Note:
The INMP441 uses an I2S digital interface. It is best used with microcontrollers that support I2S, especially ESP32 boards. It is not a simple analog microphone module, so users must connect it correctly and use compatible I2S code or libraries.
Related products
16×2 LCD Display with I2C Interface – Yellow Backlight
A clear, beginner-friendly 16×2 character display with the I2C backpack already soldered. The yellow-green backlight provides excellent readability while the I2C interface reduces wiring to only four connections.
Display: 16 characters × 2 lines
Backlight: Yellow-Green
Interface: I2C (VCC, GND, SDA, SCL)
Voltage: 5V DC
Contrast: Adjustable
Installation: Ready to use – no backpack soldering required
Best For: Arduino, ESP32, Raspberry Pi, IoT and educational projects
3×4 Matrix Membrane Keypad Module | 12 Button Numeric Pad
A simple and reliable input device for Arduino and DIY electronics projects. This flexible 12-key keypad provides only the essential keys (0–9, *, #)—no letters—making it ideal for numeric-only applications. It comes with a peel-and-stick adhesive backing for quick mounting on enclosures, panels, or doors.
-
Keys: 12 (Telephone-style layout)
-
Interface: 7 pins (2.54 mm standard pitch)
-
Mounting: Self-adhesive sticker backing
- Best for: Electronic door locks, vending machines, access control systems, phone dialers, and keypad-based Arduino projects.
DS3231 RTC Real-Time Clock Module
The DS3231 is a highly accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO).
-
Chip: Maxim DS3231 (High Precision)
-
Memory: Built-in AT24C32 32K I2C EEPROM
-
Voltage: 3.3V – 5.5V DC
-
Interface: I2C (SCL, SDA)
-
Battery Backup: Holds time when power is off (Coin cell slot included)
-
Accuracy: Much higher than the standard DS1307
HC-SR04 Ultrasonic Sensor Module | Distance Measurement for Arduino
Give your robot eyes. The HC-SR04 uses sonar (sound waves) to measure distance, just like a bat. It is the standard sensor for obstacle avoidance robots and water level monitoring systems.
-
Range: 2cm to 400cm (4 Meters)
-
Accuracy: 3mm
-
Pins: VCC, Trig, Echo, GND
-
Best For: Obstacle avoiding cars, reverse parking sensors, and tank level detection.
IR Infrared Obstacle Avoidance Sensor Module | FC-51 for Arduino
Teach your robot to see. This sensor emits infrared light and detects reflections to see if an object is in front of it. It is the essential component for building "Obstacle Avoiding Robots" and simple security alarms.
-
Detection Range: 2cm - 30cm (Adjustable).
-
Output: Digital Signal (LOW when obstacle detected).
-
Compatibility: Works directly with Arduino, ESP32, and Raspberry Pi.
-
Best For: Robot Cars, Smart Trash Cans, and Proximity Alarms.
Soil Moisture Sensor Module (YL-69) | Automatic Plant Watering System
Never forget to water your plants again. The Soil Moisture sensor measures the water content in soil. When the soil gets dry, the sensor output changes, allowing your Arduino to turn on a water pump automatically.
-
Outputs: Analog (Exact moisture level) & Digital (Threshold switch)
-
Adjustable: Set your "Dry" trigger point with the blue potentiometer.
-
Ideal For: Smart irrigation systems, greenhouse monitoring, and science projects.
Sound Sensor Module (Microphone) | Clap Switch & Alarm Detector
Turn on lights with a clap! This microphone module detects sound waves and converts them into a digital signal for your Arduino. It is the core component for "Clap Switch" projects and noise-activated alarms.
-
Sensitivity: Adjustable via Blue Potentiometer.
-
Outputs: Digital (Gate) and Analog (Waveform).
-
Microphone: High-Sensitivity Condenser Mic.
-
Best For: Clap Switches, Baby Monitors, and Noise Alarms.
SW-420 Vibration Sensor Module | Adjustable Impact & Shake Switch
Detect motion, impacts, and theft. The SW-420 is a "Normally Closed" vibration sensor that triggers whenever it feels a shake. It features an onboard potentiometer to adjust sensitivity, making it perfect for sensitive projects like door alarms or earthquake detectors.
- Sensor Type: SW-420 (Normally Closed).
- Output: Digital (High/Low).
- Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Anti-Theft Alarms, Smart Cars, and Impact Detection.
Reviews
There are no reviews yet.