WLED Sound Reactive Controller
The entire project write up can be found here: https://www.modhobbyist.com/projects/wood-and-acrylic-bookshelf-speakers
And here's the build video: https://youtu.be/qgUsXSUj9g0
And you can pick up the build plans here: https://www.modhobbyist.com/plans/p/wood-and-acrylic-bookshelf-speakers
I created this simple circuit board to run the LEDs in my DIY Office Speakers. I had several goals for the LEDs in this project, including Alexa control, IR Remote control, and custom color/animation presets, but my main goal was to make them sound reactive.
This design features an ICS-43434 microphone to read sound inputs and pass them along to the ESP32 (38 pin) dev kit. It also has an SN74AHCT125NS logic level shifter to step the 3.3v logic signals from the ESP32 up to 5v for the LED strip.
The default BOM contains all the parts that were cost effective to include in the Pick and Place file, but some would ramp the assembly cost way up, so I removed them from the Pick and Place and opted to source them and solder them myself. I've provided links to the parts you'll need to buy below.
Components included in the Pick and Place file (more info can be found in BOM):
- 0.1u SMD Capacitor
- 100k SMD Resistor
- 68 SMD Resistor
- ICS-43434 - Microphone
- SN74AHCT125NS - Logic Level Shifter
Components NOT in the pick and place file:
- 2 Pin Terminal Block - 2.54mm spacing - https://amzn.to/3KGNhzB
- 4 Pin Terminal Block - 2.54mm spacing - https://amzn.to/3KGNhzB
- IR LED VS1838B - https://amzn.to/45aM4Zl
- ESP32 DevKit C - https://amzn.to/3YCHr83
WLED Sound Reactive Controller
*PCBWay community is a shared platform and we are not responsible for any design issues.
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