Add sound to your project with this little ear-shaped circuit. Interfaces easily with Arduino or your favorite micro-controller. We supply code for volume sensing and sound controlled lightbulbs, but the possibilities are endless. This circuit includes the LM386 audio amplifier circuit as well as supporting elecrical components. The audio signal and the 5V and Ground pins are broken out into 0.1" spaced headers, so it is breadboard friendly and great for prototyping. This PCB is ear-shaped because it is circuit that allows machines to hear. This is an example of onomatopoetic electronics
, gadgets whose shapes let you know what they do.