{"product_id":"max9814-microphone-amplifier-module-with-agc","title":"MAX9814 Microphone Amplifier Module with AGC","description":"\u003ch1\u003eMAX9814 Microphone Amplifier with AGC and Electret Mic\u003c\/h1\u003e\n\n\u003cp\u003eThe MAX9814 is a high-performance microphone amplifier with automatic gain control (AGC) and a built-in electret microphone. It is designed to capture clear audio for voice recognition, sound detection, and audio-reactive projects. The AGC adjusts gain automatically to prevent distortion from loud sounds while picking up quiet signals.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7V to 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGain Settings\u003c\/td\u003e\n\u003ctd\u003e40dB, 50dB, 60dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAGC Attack Time\u003c\/td\u003e\n\u003ctd\u003e3ms (fast) to 30ms (slow)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAGC Release Time\u003c\/td\u003e\n\u003ctd\u003e30ms (fast) to 300ms (slow)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e100Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicrophone Bias\u003c\/td\u003e\n\u003ctd\u003e2V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-sound-reactive-led-visualiser\"\u003eSound-reactive LED strips or wearable lights\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/voice-controlled-home-automation-kit-with-arduino-uno-and-hc-05-bluetoot\"\u003eVoice-controlled home automation or robot\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-audio-spectrum-analyser-on-oled\"\u003eAudio spectrum visualizer with an OLED display\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/clap-switch-kit-with-arduino-uno-learn-pattern-detection-and-debounce\"\u003eClap switch or noise-activated alarm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module works with any 3.3V or 5V microcontroller including Arduino Uno, Nano, ESP32, and Raspberry Pi Pico. The analog output connects directly to an ADC input. The AGC ensures consistent levels across different sound environments.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 3.3–5V, GND to ground, and OUT to an analog pin. No pull-up resistor is needed. Keep the mic away from noisy power supply traces. For best results, place a 10µF capacitor between VCC and GND near the module.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the module operates at 5V and the analog output can be read by any Uno analog pin. No additional components are needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I adjust the gain manually?\u003c\/summary\u003e\u003cp\u003eThe MAX9814 gain is set by connecting the gain pin to VCC, GND, or leaving it unconnected for 40dB, 50dB, or 60dB respectively.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work with Raspberry Pi?\u003c\/summary\u003e\u003cp\u003eRaspberry Pi lacks an analog input, so you'll need an ADC like the MCP3008. The module's output is analog, so an external ADC is required.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445077008749,"sku":"CDN-0924","price":240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_6a4ee248-b03c-4a13-bb1a-87b67cd0df5c.jpg?v=1781513163","url":"https:\/\/compoden.com\/products\/max9814-microphone-amplifier-module-with-agc","provider":"Compoden","version":"1.0","type":"link"}