MAX9814 Microphone Module Features
Microphone AGC amplifier module, based on MAX9814 chip, has a 2.7V to 5.5V power supply. This device features a built-in low-noise microphone bias. This module can also be connected directly to AUX output.
The module’s output is not zero in silent mode and has an offset 1.25V.
MAX9814 Microphone Module Pinout
This module has 5 pins:
- VCC: Module power supply – 2.7-5.5 V
- GND: Ground
- OUT: Analog data output to the microcontroller
- Gain: Adjusting maximum module output*
- AR: Adjusting module accuracy*
You can see pinout of this module in the image below.
You can download the datasheet of this module here.
Interfacing MAX9814 Module with Arduino
Step 1: Circuit
The following circuit shows how you should connect Arduino to MAX9814 module. Connect wires accordingly.
Step 2: Code
Upload the following code to your Arduino.
/* modified on Sep 8, 2020 Modified by MohammedDamirchi from Arduino Examples
After running the code, you will see the following image in the serial output.