INMP441 Omnidirectional Microphone Module I2S Interface MEMS High Precision Low Power Ultra Small Volume for ESP32 DIY 3pcs

The little mic that hears it all—literally. With its I2S interface and high precision, it’ll pick up every whisper, hum, and sneeze in the room. Perfect for your DIY projects, just be careful—it’s so sensitive, it might even catch your dog’s secret plans to steal dinner!

These are great mics. I tested a number of analog and digital mics, researched other people's recommendation, and tried a number. This is the best sounding mic for stereo audio capture with a microcontroller I have found. Beware to take care soldering because I ruined a bunch of these by soldering them incorrectly. Look closely at the center of the breakout board in the image. These are both from this product. There's a strange instinct to solder the headers with the chip on top and the flat section on the bottom. Problem is the mic is the hole on the side without the chip. If you solder the chips on wrong side, like i did 4 times, the mic is effectively blocked by the breadboard, permaproto or other installation. I've found a way to use some of my bad ones without desoldering by using female header pins and finding a way to allow sound to reach the mic hole, but this isn't going to work for many use cases. Therefore solder them correctly with the mic hole up and the pins pointing down. Furthermore, I can't recall any of the product pages for INMP441 mentioning the soldering problem. I googled it and found I was far from alone making this mistake. EDIT: I gave them the full 5 stars after trying other brands and finding none handled the correct soldering issue and this brand seemed highest quality with prime deliver. Frankly the Teyleten Robot INMP441 Omnidirectional Microphone Module MEMS High Precision Low Power 3-pack would get 5 stars if not for them being on the expensive side and for the fact that there was nothing in the packaging that I recall that would have helped me avoid wasting 4. I also tried some from aliexpress and other mems, pdm digital mics. These do not require an analog input on the CPU or MCU. They utilize standard digital pin protocols. You'll need power, ground, and 3 GPIO pins. This is more complex than an analog mic such as MAX4466 which requires +, -, and an analog input pin, 2 pins less than Mems or other 3 wire protocols. But let me tell you something. The audio captured by a properly soldered INMP441 is about 10 times clearer and more representative of the actual sound being recorded. Write a small Python, CircuitPython, or C/Arduino program to do nothing but record into a buffer big enough to fit 10 seconds of sound. Then render the sound from each mic. I am positive you will select the INMP441. It's a very capable, affordable, well supported, and consistent quality. If you don't want to waste your time testing and trial and error like I did, just buy these. I need to find a similar quality vendor as Teyleten Robot or a way to buy these in bulk over aliexpress perhaps since this is now my electronics product mic of choice for voice capture, or sound reactive algorithms. In my attached photo, I put two of these side by side. The green arrow points to the correctly soldered and working mic, the red arrow is a fail. Again, I do trust this brand and will buy again. I'm just mad about no warning about soldering the headers!

purchased for a ESPHome voice assistant project, works quite well.. just remember to pull the L/R pin high or low, don't leave it floating or you will have issues!

Perfect for wled builds to take advantage of the audio/music feature. These were quick to solder and the sensitivity is good.

I used this microphone to create an ESP32-based voiced assistant for my home automation system. It's pretty basic, but works well for my purposes and is very inexpensive. It is powered from the 3.3 volt pin on the microcontroller.