{"title":"Adafruit Silicon MEMS Microphone Breakout - SPW2430","handle":"adafruit-silicon-mems-microphone-breakout-spw2430","url":"/products/adafruit-silicon-mems-microphone-breakout-spw2430","description":"The Adafruit SPW2430 Silicon MEMS Microphone Breakout is a compact, low-cost microphone module that detects sound and converts it to an analog voltage — no external bias resistor or amplifier needed. With a frequency range of 100 Hz to 10 kHz, it's well suited for general-purpose audio recording, detection, and sound-reactive projects.\n\nThe breakout provides both DC-coupled and AC-coupled outputs. The DC pin outputs the audio waveform with a 0.67 V bias (approximately 100 mVpp when speaking nearby, up to 1 Vpp for loud sounds). The AC pin includes a 10 µF series capacitor for equipment that requires AC-coupled audio input.\n\nKey Features\n\n\nSPW2430 MEMS Microphone – Built-in amplifier, no external bias or preamp needed\n\nFrequency Range – 100 Hz to 10 kHz\n\nDC & AC Outputs – DC pin with 0.67 V bias for direct ADC connection; AC pin with capacitor coupling\n\nOutput Level – ~100 mVpp typical speech, up to 1 Vpp for loud sounds (line-level compatible)\n\n3.3–5 V Power – Onboard 3 V regulator; best performance on a quiet 3.3 V supply\n\nCompact Size – Minimal board with just the mic, regulator, and filter capacitors\n\n\n\nNote: This breakout does not include an adjustable gain amplifier. The output is not designed to drive speakers or headphones directly — an external audio amplifier is needed for speaker output. For direct microcontroller ADC reading, connect the DC pin without any additional components.\n\n\nIdeal For\n\nAudio-reactive projects using FFT\nVoice changers and audio recording/sampling\nSound level detection and monitoring\nLine-level audio input to recording equipment\n\n\nPackage Contents\n\n1× Adafruit SPW2430 Silicon MEMS Microphone Breakout\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9776,"title":"Default Title","sku":"AF-2716","price":10.01,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":1,"option1":"Default Title"}]}