{"product_id":"inmp441-mems-i2s-omnidirectional-microphone-module-esp32","title":"INMP441 MEMS I2S Omnidirectional Microphone Module for ESP32","description":"\n\u003ch2\u003eINMP441 MEMS I2S Omnidirectional Microphone Module for ESP32\u003c\/h2\u003e\n\u003cp\u003eCapture clear, wide-field audio with the \u003cstrong\u003eINMP441 MEMS Omnidirectional Microphone Module\u003c\/strong\u003e. Featuring a high-precision 24-bit digital I2S interface, this ultra-compact module is engineered for makers, hobbyists, and engineers who need reliable, high-fidelity audio capture in IoT projects, voice-recognition systems, and embedded applications — especially those built around the ESP32 platform.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the INMP441 Microphone Module?\u003c\/h3\u003e\n\u003cp\u003eThe INMP441 integrates a MEMS sensor, signal conditioning, analog-to-digital conversion, anti-aliasing filter, and power management all in one tiny footprint. Its industry-standard I2S interface lets you connect directly to DSPs and microcontrollers — \u003cstrong\u003eno external audio codec required\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24-Bit High-Precision I2S Interface\u003c\/strong\u003e — Clean, high-resolution digital audio output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Signal-to-Noise Ratio: 61 dBA\u003c\/strong\u003e — Excellent clarity even in ambient environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity: -26 dBFS\u003c\/strong\u003e — Picks up audio from multiple directions with ease\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat Wideband Frequency Response: 60 Hz – 15 kHz\u003c\/strong\u003e — Natural, true-to-life sound reproduction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Power Consumption: 1.4 mA\u003c\/strong\u003e — Ideal for battery-powered and energy-efficient designs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Power Supply Rejection: -75 dBFS\u003c\/strong\u003e — Minimizes noise from power supply interference\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOmnidirectional Pickup Pattern\u003c\/strong\u003e — Captures audio from all angles, perfect for meetings, remote collaboration, and multi-user scenarios\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Form Factor\u003c\/strong\u003e — Easy to integrate into space-constrained enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInterface Pin Definitions\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCK\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial data clock for I2S interface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWord selection (left\/right channel) for I2S interface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eL\/R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChannel selection — LOW = left channel, HIGH = right channel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial data output of the I2S interface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVCC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInput power: 1.8V to 3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower ground\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eESP32 Wiring Guide\u003c\/h3\u003e\n\u003cp\u003eConnect the INMP441 to your ESP32 using the following pin mapping:\u003c\/p\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eINMP441 Pin\u003c\/th\u003e\n\u003cth\u003eESP32 GPIO\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSCK\u003c\/td\u003e\n\u003ctd\u003eGPIO14\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSD\u003c\/td\u003e\n\u003ctd\u003eGPIO32\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWS\u003c\/td\u003e\n\u003ctd\u003eGPIO15\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eL\/R\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVDD\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOmnidirectional vs. Directional Microphones — Which Is Right for You?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDirectional microphones\u003c\/strong\u003e are designed for single-user, close-range pickup (typically within 30 cm). They excel at isolating one voice and delivering very focused audio quality — great for personal recording or broadcasting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOmnidirectional microphones\u003c\/strong\u003e like the INMP441 offer a much wider pickup radius (1–5+ meters), making them ideal for group settings such as small meetings, remote discussions, ad-hoc conferences, or IoT environments where multiple sound sources are present. The tradeoff is increased ambient noise pickup, which is why proper noise-reduction algorithms are recommended in critical applications.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInterface: Digital I2S (24-bit)\u003c\/li\u003e\n  \u003cli\u003eSNR: 61 dBA\u003c\/li\u003e\n  \u003cli\u003eSensitivity: -26 dBFS\u003c\/li\u003e\n  \u003cli\u003eFrequency Response: 60 Hz – 15 kHz\u003c\/li\u003e\n  \u003cli\u003eCurrent Consumption: 1.4 mA\u003c\/li\u003e\n  \u003cli\u003ePower Supply Rejection: -75 dBFS\u003c\/li\u003e\n  \u003cli\u003eSupply Voltage: 1.8V – 3.3V\u003c\/li\u003e\n  \u003cli\u003eCompatible With: ESP32, DSPs, and other I2S-capable microcontrollers\u003c\/li\u003e\n  \u003cli\u003eOrigin: Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the INMP441 MEMS microphone module compatible with the ESP32?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the INMP441 is fully compatible with the ESP32's I2S peripheral. Simply connect SCK to GPIO14, SD to GPIO32, WS to GPIO15, L\/R to GND, GND to GND, and VDD to the 3.3V pin on your ESP32 board. Tutorials are available for getting started quickly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What supply voltage does the INMP441 microphone module require?\u003c\/h4\u003e\n\u003cp\u003eA: The INMP441 operates on a supply voltage between 1.8V and 3.3V, making it directly compatible with 3.3V logic microcontrollers like the ESP32 without any additional level-shifting circuitry.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the INMP441 omnidirectional microphone and a standard directional microphone?\u003c\/h4\u003e\n\u003cp\u003eA: An omnidirectional microphone like the INMP441 captures audio from all directions across a wide pickup radius (1–5+ meters), making it excellent for group conversations, IoT voice interfaces, and meeting applications. A directional microphone focuses on a single source at close range. The choice depends on your use case — omnidirectional for wide-area capture, directional for single-voice isolation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this module require an external audio codec to work?\u003c\/h4\u003e\n\u003cp\u003eA: No. The INMP441 integrates MEMS sensing, signal conditioning, analog-to-digital conversion, and an I2S digital output all on one module. It connects directly to any I2S-capable processor — no external audio codec is needed.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the INMP441 MEMS microphone module compatible with the ESP32?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the INMP441 is fully compatible with the ESP32's I2S peripheral. Simply connect SCK to GPIO14, SD to GPIO32, WS to GPIO15, L\/R to GND, GND to GND, and VDD to the 3.3V pin on your ESP32 board. Tutorials are available for getting started quickly.\"}}, {\"@type\": \"Question\", \"name\": \"What supply voltage does the INMP441 microphone module require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The INMP441 operates on a supply voltage between 1.8V and 3.3V, making it directly compatible with 3.3V logic microcontrollers like the ESP32 without any additional level-shifting circuitry.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the INMP441 omnidirectional microphone and a standard directional microphone?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An omnidirectional microphone like the INMP441 captures audio from all directions across a wide pickup radius (1–5+ meters), making it excellent for group conversations, IoT voice interfaces, and meeting applications. A directional microphone focuses on a single source at close range. The choice depends on your use case — omnidirectional for wide-area capture, directional for single-voice isolation.\"}}, {\"@type\": \"Question\", \"name\": \"Does this module require an external audio codec to work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The INMP441 integrates MEMS sensing, signal conditioning, analog-to-digital conversion, and an I2S digital output all on one module. It connects directly to any I2S-capable processor — no external audio codec is needed.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"INMP441 MEMS I2S Omnidirectional Microphone Module for ESP32\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/products\/inmp441-mems-i2s-omnidirectional-microphone-module-esp32\"}]}\u003c\/script\u003e","brand":"Quake","offers":[{"title":"No welding","offer_id":50287367815395,"sku":"14:175#No welding","price":17.96,"currency_code":"USD","in_stock":true},{"title":"welding","offer_id":50287367848163,"sku":"14:496#welding","price":21.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/9439\/1523\/files\/S0d1f6d181d9a468d9edee5192361008aq.webp?v=1790296146","url":"https:\/\/quakegoods.com\/products\/inmp441-mems-i2s-omnidirectional-microphone-module-esp32","provider":"Quake","version":"1.0","type":"link"}