|Three wires connect to the Arduino, GND, +5V and Signal to Analog 0|
One out of three microphones with amplifiers has been soldered. These microphones are included in the Robot Mapping project and are part of the "radio beacons".
|The Electret Microphone and LM386 Amplifier (200x)|
|Soldering went ok, design was ad-hoc|
|The microphone next to one on a breadboard, only difference is the resistor that got replaced with a trimpot.|
The initial test seemed ok.