we now have a super small breakthrough board ICS43434 I2MEMS microphone. Just like "classic" element microphones, MEMS MIC can detect sound and convert it into voltage, but they are smaller and thinner. This microphone isn't even analog, it's purely digital. The I2S is a small, low-cost MEMS MIC with a range of about 50Hz-15kHz, suitable for all audio recording/detection. The chip has a built-in low-pass filter that cuts the frequency above 24kHz. For many microcontrollers, adding audio input is easy with one of our analog microphone breakthroughs. But as you get to bigger and better microcontrollers and microcomputers, you'll find that you don't always have analog inputs, or maybe you want to avoid the noise that seeps in with analog microphone systems. Once past the 8-bit micros, you'll usually find that I2 can take the peripheral digital audio data in! That's where the I2S microphone breaks through the featured ICS43434 in. Instead of the analog output, there are three digital pins: clock, Data, and Left/Right (Word Select) clock. When connected to a microcontroller/computer, the "I2S controller" drive the clock and word select pins at high frequencies and read data from the microphone. No analog conversion required! A microphone is a single unit element. You can Select the Select Pin on the left or right channel by connecting it to power or ground. If you need stereo sound, pick up two microphones! You can set them to stereo by sharing the clock, , and data lines, but with with the choice ground, a person with the choice can choose high voltage to high voltage. No firmware or driver configuration is required, and you'll get 24-bit output instantly. This I2S MEMS microphone is bottom ported, so make sure you have holes on the bottom, towards the sound you want to read. It's only the largest device at 1.6-3.6V, so it 't work with 5V logic (you're unlikely to use an I2S 5V logic device anyway). Many beginner microcontroller boards don't have i2, so make sure it's a supported interface before trying to put it all together! The microphone is best used with cortical M-series chips such as SAMD21 or SAMD51, ESP32, RP2040 or RP2350, or (e.g. ). Sensitivity: 26 dB 1dB High performance mode SNR: 65dBA Low power mode SNR: 64dBA High performance mode current consumption: 490μA Low power mode Current consumption: 230μA Mike Wind Pressure Level Overload Point () : 120 dB SPL High performance mode sampling rate: 23 ~ 51.6kHz Low power mode sampling rate: 6.25 ~ 18.75 kHz (Pin headers have been soldered) Color: As Shown Material: PCB Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.