A compact bow tie, capable of continuously displaying the surrounding sound in four different frequencies on its two mirrored 4x5 LED arrays.
This tutorial will go through how to make a bow tie that will make you stand out in any crowd.
What you’ll need for this project:
1 Arduino Pro Micro or a similarly sized Arduino that runs at 16MHz
40 3mm LEDs
1 simple button
1 Electret Microphone
1 Rechargeable 3.7V 800mAh 25C 1-Cell LiPo Battery
10 100 resistors
1 10k resistor
1 220 resistor
Access to a PCB machine (Printed Circuit Board)
A cheap adjustable hooked/clip-on bow tie or just the adjustable hooking/clip-on neckband”

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