Color cycle a NeoPixel (WS2812B) strip w/ Particle Argon/Xenon/Boron

There are many like it, but this one is mine.

• enable() - Turns the NeoPixel strip "on"
• disable() - Turns the NeoPixel strip "off"
• setBrightness(short) - Set brightness from 1-100, inclusive
• setDelay(short) - Set update delay in ms

Note: Particle Cloud Functions only accept a single String value; any args are converted/coerced into the proper data type.

• settings - {String}: All settings in a JSON object. Properties:
  • enabled - {bool} (default true): Whether or not the strip is currently enabled
  • delay - {short} (default 20): Current delay setting
  • brightness - {short} (default 50): Current brightness setting

• Settings are persisted in EEPROM. Should I be doing this? I have no idea.
• setBrightness(0) just invokes disable(). It does not save 0 as the brightness setting.
• Very obviously adapted from Adafruit's "rainbow" example.

Copyright © 2019 Christopher Hiller. Licensed Apache-2.0