// other
INMP441
I2S MEMS digital microphone
€3.00
avg eur
no image
I2S
Pins
6
Specs
4
Libraries
2
Protocols
1
// wiring → esp32 devkit v1
VDD
3V3
EN
GPIO36
VP
GPIO39
VN
GPIO34
GPIO35
GPIO32
SD
GPIO33
WS
GPIO25
SCK
GPIO26
GPIO27
GPIO14
GPIO12
GND
GND
GPIO13
ESP32
WROOM-32
devkit v1
USB
VIN
5V
GND
GPIO23
GPIO22
SCL
GPIO1
TX0
GPIO3
RX0
GPIO21
SDA
GPIO19
MISO
GPIO18
SCK
GPIO5
SS
GPIO17
TX2
GPIO16
RX2
GPIO4
GPIO2
GPIO15
sensor pin (left)
sensor pin (right)
unused
// pinout → esp32
| Sensor Pin | ESP32 Connection |
|---|---|
| VDD | 3.3V |
| GND | GND |
| L/R | GND (left) |
| WS | GPIO 25 |
| SCK | GPIO 26 |
| SD | GPIO 33 |
// technical specs
SNR
61 dB
Sensitivity
-26 dBFS
Sample rate
up to 48 kHz
Voltage
1.8–3.3V
// github libraries
// notes & warnings
Way better than analog KY-038 — true digital, no ADC noise. Needs ESP32 I2S peripheral, not regular GPIO.
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