Electret Microphone Amplifier - MAX9814 with Auto Gain Control Slide Block Having two or more Arduinos

Having two or more Arduinos be able to communicate with each other wirelessly over a distance opens lots of possibilities:

of Inputs: 3X 3

Connector: RS-232 DB9 female

bluetooth V2

Electret Microphone Amplifier - MAX9814 with Auto Gain Control Slide Block Having two or more ArduinosThis well designed electret microphone amplifier module is a step above the rest, with built in automatic gain control. What does this mean? The AGC in the amplifier means that near 'loud' sounds will be quieted so they don't overwhelm & 'clip' the amplifier. Also low level, quiet, far away sounds will be amplified. This sound detected by electret microphones module is amplified using the Maxim MAX9814, a chip that is designed for amplifying electret