{"title":"Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H","handle":"adafruit-i2s-mems-microphone-breakout-sph0645lm4h","url":"/products/adafruit-i2s-mems-microphone-breakout-sph0645lm4h","description":"The Adafruit I2S MEMS Microphone Breakout features the SPH0645LM4H, a tiny digital MEMS microphone with a purely digital I2S output. Unlike analogue electret microphones, this mic sends digital audio data directly to your microcontroller — eliminating analogue noise and the need for an ADC.\n\nWith a frequency range of approximately 50 Hz to 15 kHz, this microphone is well suited for general audio recording and sound detection. It works with any microcontroller or single-board computer that has an I2S peripheral, including the Arduino Zero, Feather M0, and Raspberry Pi.\n\nKey Features\n\n\nSPH0645LM4H MEMS Microphone – Compact digital microphone with I2S output\n\nPurely Digital Output – Three pins: Clock, Data, and Word Select (Left-Right) — no analogue conversion needed\n\n50 Hz – 15 kHz Range – Suitable for general-purpose audio recording and detection\n\nChannel Selectable – Set to left or right channel via the Select pin (connect to power or ground)\n\nStereo Capable – Pair two microphones on the same I2S bus with different Select pin settings\n\nBottom-Ported – Sound enters through the bottom of the board; orient the hole towards the audio source\n\n1.6V – 3.6V Operation – 3.3V logic only; not compatible with 5V logic levels\n\n\nIdeal For\n\nDigital audio recording with Cortex M-series microcontrollers\nRaspberry Pi voice and sound detection projects\nNoise-free audio input without analogue conversion\nStereo microphone setups using two breakouts on one I2S bus\n\n\nPackage Contents\n\n1× Adafruit I2S MEMS Microphone Breakout (SPH0645LM4H)\n\n\n\nImportant: This is a 3.3V device only — not compatible with 5V logic. Your microcontroller must have I2S support (e.g., Arduino Zero, Feather M0, Raspberry Pi). Many beginner boards do not include I2S.\n\n\nResources\n\nAdafruit I2S MEMS Microphone Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":13203,"title":"Default Title","sku":"AF-3421","price":14.43,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}