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UG LAND INDIA

INMP441 Omnidirectional High Precision MEMS Microphone Module I2S Support

INMP441 Omnidirectional High Precision MEMS Microphone Module I2S Support

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Specification:

Parameter Specification
Microphone Type MEMS (Micro-Electro-Mechanical Systems)
Model INMP441
Directionality Omnidirectional
Output Interface Digital I²S
Supply Voltage 3.3V (with onboard regulator)
Current Consumption 1.4 mA (typical)
Sensitivity -26 dBFS
Signal-to-Noise Ratio 61 dBA
Dynamic Range 100 dB
Frequency Response 60 Hz – 15 kHz
I²S Format 24-bit, 2’s complement, MSB first
Clock Type Master Clock not required (uses Bit Clock & Word Select)
Channel Selection Selectable Left / Right / Stereo (via L/R pin)
Operating Temperature -40°C to +85°C
Board Dimensions Approx. 15 mm × 13 mm
Pinout VCC, GND, WS (Word Select), SCK (Bit Clock), SD (Data), L/R

 

Features:

  • 🎙️ High-Precision MEMS Microphone: Based on the Analog Devices INMP441 sensor for professional-grade audio input.

  • 🔁 Omnidirectional Pickup: Captures sound from all directions, ideal for voice assistants and environmental sensing.

  • 🔊 Digital I²S Audio Output: No analog signal degradation — direct connection to microcontrollers with I²S support.

  • 🧠 Low Power, High SNR: Typical Signal-to-Noise Ratio (SNR) of 61 dBA ensures clean, high-quality audio.

  • ⚡ Voltage Compatibility: Operates at 3.3V with onboard regulation and logic-level compatibility.

  • 🔧 Configurable Channels: Selectable left/right/mono output via L/R pin configuration.

  • 📏 Small Form Factor: Easily fits into compact enclosures and wearable devices.

  • 🧰 Easy Integration: Compatible with ESP32, Raspberry Pi, Teensy, STM32, and other I²S-capable microcontrollers.

  • 🔒 Stable Operation: Robust PCB design with decoupling capacitors for noise filtering.

Description:

The INMP441 is a high-performance, omnidirectional MEMS microphone module designed for digital audio applications that require precise sound input and low latency. Built around the INMP441 MEMS sensor, this compact board outputs digital audio signals via the I²S (Inter-IC Sound) interface, eliminating the need for an external ADC (Analog-to-Digital Converter).

The INMP441 is highly sensitive, low-noise, and capable of capturing audio in real-time with excellent accuracy. Its omnidirectional pickup pattern makes it ideal for detecting sound from all directions, making it perfect for applications such as voice recognition, smart assistants, sound localization, audio recording, AI/ML voice analysis, and robotics.

With low power consumption, high signal-to-noise ratio, and compact form factor, the module is compatible with most modern microcontrollers and development boards, including ESP32, Raspberry Pi, STM32, and Arduino (with I²S support). The module features clearly labeled pins and onboard voltage regulation for stable 3.3V operation.

Shipping & Returns

Return Policy According

• Order can be return within 10 days from date of delivery.

• Order return request cannot be accepted after 10 days from date of delivery.
• Return request window are available for only 10 days.
• After 10 days return window will closed and we cannot accepted any request.
• Customer will sent the order to seller by any courier.
• Customer will paid own of courier charges to seller warehouse.
             

Generate (RMT) Return Merchant Ticket

• Note : Take photo and upload. Condition of product. Enter Correct Name, Mobile, Email, Order id / Invoice number (any one ) you can enter. Select Payment mode

Cash On Delivery / Prepaid .
• After Submit Return Request within 12 - 24 hour receive (RMT) Return Merchant Ticket number to your registered mobile number and email id.
• When you receive (RMT) Return Merchant Ticket number then ship your return to our warehouse address by any courier.
• We will initiate refund after delivered your return order to our warehouse.
• For any query please call our helpline number +91-9999115521 or
  mail us support@uglandindia.com

Refund policy

Prepaid Customer

• Refund of the order will be initiated after receiving the product at the warehouse address

• You will receive a notification message or mail for confirmation, of receiving the product.

• Full order value amount will transfer to your bank account. Money will be credited 5-7 working days.
• Money will issue same day when confirmation will receive by message and mail.
• Refund will not issued if product is not the same as which orders are sent by us.
• We can provide reverse amount in the DISCOUNT coupon if the buyer wants and can apply coupon to purchase another or the same product. Money will deduct.
• Coupon validity available for 1 year.
• If return request receive after 10 days from the date of delivery. we will not issue refund.
 
Deduct Non Refundable Charges
• Refund money reverse to you only product amount and delivery charges
• Delivery charges will not refund in case order refuse delivery to accept order / Incorrect address mentioned
Order Cancellation Charges
Order cancellation charges will be deduct if in case your order is Picked up or handover to the courier department. Delivery charges will deduct.
Refund will reverse only product amount.

For any query, please Call/WhatsApp to our helpline number +91-9999115521/+91-9999115512

Any complaint or query also technical support mail us support@uglandindia.com
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