Tue Aug 22 11:45:11 EST 2017
 

Audio Input for the IS31FL3731

Overview

This guide shows how to connect an IS31FL3731 to receive audio input from a microphone to drive LEDs.


Demonstration Video

Hardware

The following hardware is used in this project.

Assembly

Here is the circuit diagram:


See the link in the 'Source Code' section for the actual Fritzing diagram file.

Here are some wiring photos:

IS31FL3731-connections-20161009.jpg

trinket-connections-20161009.jpg

Software Perequisites

The project requires the following Arduino Libraries

Source Code

This project uses the following Arduino sketch on the Adafruit Pro Trinket.

IS31FL3731_audio_input

Resources

Adafruit tutorial on IS31FL3731 16x9 Charlieplexed PWM LED Driver