{"product_id":"6x2-2mm-electret-condenser-microphone-capsule-arduino","title":"6×2.2mm Electret Condenser Microphone Capsule Capacitive Pickup Mic for Arduino DIY Audio","description":"\u003ch2\u003e6×2.2mm Electret Condenser Microphone Capsule — Capacitive Pickup for Arduino \u0026amp; DIY Audio\u003c\/h2\u003e\n\n\u003cp\u003eThis compact \u003cstrong\u003e6×2.2mm electret condenser microphone capsule\u003c\/strong\u003e is the go-to choice for makers, engineers, and hobbyists building sound-sensitive electronics. Its small footprint fits directly onto PCBs, breadboards, or custom enclosures, while its high-sensitivity capacitive element captures audio clearly across a wide frequency range. Compatible with Arduino, Raspberry Pi, and virtually any microcontroller-based project requiring audio input.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectret Condenser Microphone (ECM)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6mm diameter × 2.2mm height\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePickup Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCapacitive (Electret)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh sensitivity\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDirectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOmnidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTypically 1.5V – 10V DC (via bias resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20Hz – 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-pin (Source \/ Ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArduino, Raspberry Pi, DIY audio, sound detection\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use with Arduino\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eConnect the microphone’s \u003cstrong\u003epositive terminal (S)\u003c\/strong\u003e through a \u003cstrong\u003e10kΩ pull-up resistor\u003c\/strong\u003e to VCC (3.3V or 5V).\u003c\/li\u003e\n  \u003cli\u003eConnect the \u003cstrong\u003enegative terminal (GND)\u003c\/strong\u003e to Arduino GND.\u003c\/li\u003e\n  \u003cli\u003eRead the audio signal from the junction between the resistor and the microphone terminal using an \u003cstrong\u003eanalog input pin\u003c\/strong\u003e (A0–A5).\u003c\/li\u003e\n  \u003cli\u003eUse \u003ccode\u003eanalogRead()\u003c\/code\u003e in your sketch to capture sound level data.\u003c\/li\u003e\n  \u003cli\u003eFor voice recording or frequency analysis, pair with an op-amp amplifier circuit (e.g., LM386) for signal amplification before ADC input.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWhy Choose This Microphone Capsule?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eUltra-compact 6×2.2mm form factor\u003c\/strong\u003e — fits tight PCB layouts and miniature enclosures\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eOmnidirectional pickup\u003c\/strong\u003e — captures sound from all directions, ideal for ambient sound detection\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide frequency response\u003c\/strong\u003e — 20Hz–20kHz covers full human hearing range\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eLow operating voltage\u003c\/strong\u003e — compatible with 3.3V and 5V microcontroller systems\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eEasy PCB integration\u003c\/strong\u003e — standard 2-pin through-hole footprint\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCost-effective\u003c\/strong\u003e — ideal for prototyping and production runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino sound detection and clap-switch projects\u003c\/li\u003e\n  \u003cli\u003eVoice-activated relay and automation circuits\u003c\/li\u003e\n  \u003cli\u003eDIY intercom and walkie-talkie builds\u003c\/li\u003e\n  \u003cli\u003eNoise level monitoring and environmental sensing\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi audio input for speech recognition\u003c\/li\u003e\n  \u003cli\u003eWearable electronics and IoT audio nodes\u003c\/li\u003e\n  \u003cli\u003eReplacement capsule for headsets and small speakers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need an amplifier circuit?\u003c\/strong\u003e\u003cbr\u003eA: For basic sound detection (clap switch, noise threshold), a simple pull-up resistor is sufficient. For voice recording or frequency analysis, an op-amp amplifier (LM386, MAX4466, or similar) is recommended to boost the signal before ADC conversion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this compatible with 3.3V systems?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Electret condenser microphones typically operate from 1.5V to 10V, making them fully compatible with both 3.3V (ESP32, STM32, Raspberry Pi) and 5V (Arduino UNO, Mega) systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the polarity?\u003c\/strong\u003e\u003cbr\u003eA: The terminal connected to the metal case is GND (negative). The other terminal is the signal output (positive\/source). Check the capsule markings or datasheet for your specific batch.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectret Condenser Microphone Capsules (quantity as selected)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991411380459,"sku":"\u003cnone\u003e","price":5.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/6x2-2mm-electret-condenser-microphone-capacitive-mic-arduino.webp?v=1761967511","url":"https:\/\/keszoox.com\/products\/6x2-2mm-electret-condenser-microphone-capsule-arduino","provider":"Keszoox","version":"1.0","type":"link"}