LED Bubble Hair with Motion-Reactive Rain Effects | CircuitPython Wearable Tutorial

Make glowing LED bubble hair that reacts when you move your head!

In this project, six strands of seed pixels are built into a hair fall and controlled by an Adafruit RP2040 Prop-Maker Feather. The LEDs show a soft color gradient during normal wear, then the onboard accelerometer detects a head shake and triggers animated rain effects.

A gentle shake creates staggered glowing droplets that fall down individual strands. A stronger shake creates a lightning flash followed by a faster, denser rainstorm.

In this tutorial you'll learn how to:

- Wire six independent seed-pixel strands to the Prop-Maker Feather

- Power the LEDs from the board's switched 5V output

- Use the onboard LIS3DH accelerometer for motion sensing

- Create independent falling-drip animations in CircuitPython

- Adjust shake sensitivity, rain speed, lightning effects, and colors

- Hide the electronics and battery inside a scrunchie for a wearable build

This is a fun project for festivals, costumes, cosplay, dance performances, or anyone who wants a little weather system in their hair.

Full build guide and code: https://learn.adafruit.com/led-bubble-hair-extensions-with-motion-controlled-effects