{"product_id":"inmp441-omnidirectional-mems-microphone-module","title":"INMP441 Omnidirectional MEMS Microphone Module - I2S Interface","description":"\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eCapture High-Fidelity Audio with Precision\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eThe \u003cb\u003eINMP441\u003c\/b\u003e is a high-performance, low-power, omnidirectional MEMS microphone designed for digital audio applications. Unlike traditional analog microphones, the INMP441 features a built-in 24-bit I2S interface, allowing it to connect directly to digital processors like the ESP32, DSPs, or microcontrollers without needing an external audio codec.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eWith its compact circular design (approx. 1.5cm diameter) and pre-soldered headers, this module is perfect for near-field audio recording, voice recognition projects, and DIY smart home devices.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003e\n\u003cb\u003eDigital Clarity:\u003c\/b\u003e Industry-standard 24-bit I2S interface for direct digital output.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003e\n\u003cb\u003eHigh Performance:\u003c\/b\u003e Excellent Signal-to-Noise Ratio (SNR) of 61 dBA and high sensitivity (-26 dBFS).\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003e\n\u003cb\u003eBroadband Response:\u003c\/b\u003e Flat frequency response from 60 Hz to 15 kHz ensures natural, high-definition sound.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,3,0\"\u003e\n\u003cb\u003eLow Power:\u003c\/b\u003e Extremely low current consumption (1.4mA), ideal for battery-operated devices.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,4,0\"\u003e\n\u003cb\u003eBottom Port Design:\u003c\/b\u003e Omnidirectional pickup pattern for consistent audio capture from all directions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"12,0,0\"\u003e\n\u003cb\u003eInput Voltage (VCC):\u003c\/b\u003e 1.8V to 3.3V\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,1,0\"\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e I2S (Inter-IC Sound)\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,2,0\"\u003e\n\u003cb\u003ePSR:\u003c\/b\u003e -75 dBFS\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,3,0\"\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e Diameter ~1.5cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"13\"\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb\u003ePin Definition \u0026amp; Wiring Guide:\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"15\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eName\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,1,0,0\"\u003e\u003cb\u003eSCK\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,1,1,0\"\u003eSerial Clock\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,1,2,0\"\u003eSerial data clock for the I2S interface.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,2,0,0\"\u003e\u003cb\u003eWS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,2,1,0\"\u003eWord Select\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,2,2,0\"\u003eSelection for I2S interface (Left\/Right clock).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,3,0,0\"\u003e\u003cb\u003eL\/R\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,3,1,0\"\u003eChannel Select\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"15,3,2,0\"\u003e\u003cb\u003eLow (GND):\u003c\/b\u003e Left Channel output.\u003c\/p\u003e\n\u003cbr data-path-to-node=\"15,3,2,1\"\u003e\n\u003cp data-path-to-node=\"15,3,2,2\"\u003e\u003cb\u003eHigh (VDD):\u003c\/b\u003e Right Channel output.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,4,0,0\"\u003e\u003cb\u003eSD\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,4,1,0\"\u003eSerial Data\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,4,2,0\"\u003eDigital audio data output.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,5,0,0\"\u003e\u003cb\u003eVCC\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,5,1,0\"\u003ePower\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,5,2,0\"\u003eInput power (1.8V - 3.3V).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"15,6,0,0\"\u003e\u003cb\u003eGND\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,6,1,0\"\u003eGround\u003c\/td\u003e\n\u003ctd data-path-to-node=\"15,6,2,0\"\u003eCommon ground.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eESP32 Connection Tutorial:\u003c\/p\u003e\n\u003cp\u003eGet started quickly with your ESP32 development board:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"17,0,0\"\u003e\n\u003cb\u003eSCK\u003c\/b\u003e → GPIO 14\u003c\/li\u003e\n\u003cli data-path-to-node=\"17,1,0\"\u003e\n\u003cb\u003eWS\u003c\/b\u003e → GPIO 15\u003c\/li\u003e\n\u003cli data-path-to-node=\"17,2,0\"\u003e\n\u003cb\u003eSD\u003c\/b\u003e → GPIO 32\u003c\/li\u003e\n\u003cli data-path-to-node=\"17,3,0\"\u003e\n\u003cb\u003eL\/R\u003c\/b\u003e → GND (for Left Channel)\u003c\/li\u003e\n\u003cli data-path-to-node=\"17,4,0\"\u003e\n\u003cb\u003eGND\u003c\/b\u003e → GND\u003c\/li\u003e\n\u003cli data-path-to-node=\"17,5,0\"\u003e\n\u003cb\u003eVDD\u003c\/b\u003e → 3.3V\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":46292590985367,"sku":"21PS002423","price":103.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/INMP441-MEMS-microphone-module-top-view.jpg?v=1763712409","url":"https:\/\/scccltd.com\/en-tw\/products\/inmp441-omnidirectional-mems-microphone-module","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}