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Rotary NeoPixel

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A rotary encoder and a button control a NeoPixel strip: spin to move the pixel, press the knob to change the color, and press the button to change the pattern.

Source book: Learning MicroPython
Kit page: https://dmccreary.github.io/learning-micropython/kits/03-rotary-neopixel/
Printable one-pager: 03-rotary-neopixel-one-pager.html

Features

  • Lab: General Kits for Learning MicroPython
  • Lab: NeoPixel Two Button Kit
  • Lab: MicroBit
  • Lab: MicroPython Projects
  • Lab: Sourcing Parts

Benefits

  • Free, open lessons: the Learning MicroPython textbook has the kit page, wiring, and MicroPython code.
  • Ready-made curriculum: 5 additional lab pages walk students through the build step by step.
  • Classroom friendly: built on a solderless breadboard or no-solder connectors.
  • Real-world data: students read sensors and turn measurements into decisions.
  • Budget: about $17 (estimate: the $15 Moving Rainbow base parts plus a KY-040 rotary encoder, about $1 on eBay).

Parts

  • KY-040 Rotary Encoder — Input knob
  • WS2812B NeoPixels — LEDs
  • 830-Point Breadboard ($1.10) — Breadboard
  • Micro-USB Data Cable ($2.50) — Power and programming cable