Sound Reactive Baseball Hat
Add sound-reactive NeoPixels to your baseball cap! 144 pixel/meter density NeoPixel strip as a wraparound VU meter with a small microphone at the side. The FLORA microcontroller takes input from the mic and sends the LEDs flashing according to the volume in the room!
This intermediate level wearables project requires some precision soldering and sewing. I recommend checking out the following guides before you begin:
- Getting Started with FLORA
- Adafruit Guide To Excellent Soldering
- Adafruit NeoPixel Überguide
- my FLORA book
You’ll have installed board support for FLORA in your Arduino software by now.
For this project you’ll need:
- FLORA main board
- USB microB cable
- Electret Microphone Amplifier
- 144-density NeoPixel strip
- 500mAh lipoly battery and charger
- alligator clips
- soldering iron and solder
- wire strippers, pliers, and flush diagonal cutters
- (optional but very helpful)Â third hand tool
- stranded wire (ribbon cable works great too)
- sewing needle and thread
- scissors
- sewing pins or masking tape
- sturdy tape like gaff or packing
- baseball cap (I recommend getting one size up to save room for the battery)
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The hat displays animations based on the audio volume from the microphone, just like the Ampli-Tie. If you’re looking for a project that reacts to sound but doesn’t require (much) soldering, check it out!
76 eye-blasting pixels adorn the front of the baseball cap design. The small segments of flex strip connected with stranded ribbon cable and the FLORA microcontroller can hang out on the outside or inside of the cap.
The circuit is powered by a 500mAh lipoly battery which is stored in the hat’s band at the back of the head.











