Tengu refers to supernatural creature in japanese folklore known for getting into mischief. This project is dedicated to a toy that interacts with the user through ambient music, sounds or noise. Tengu basically changes the face expression based on frequency of input sound signal. It uses audio amplifier, microphone , led matrix and micro-controller (Atmega 328P).
A demonstration of project is shown below.
[videos file=”https://www.youtube.com/watch?v=u7oEaEDh7E4″ width=”480″ height=”320″][/videos]