led-dudes

Control RGB led strips with traveling and morphing "dudes" (fm sine waves). Supports SK9822 (e.g. Adafruit DotStar) and WS281(X) (e.g. Adafruit NeoPixel) right now. Tested on a Raspberry Pi Zero W with Adafruit DotStar strip via SPI as well as Adafruit NeoPixel strip via PWM & DMA on GPIO18.

Config options

Option	Required	Description
ledType	yes	dotstar or SK9822, neopixel or ws281x
stripLength	yes	int total number of LEDs
schedule		list of times to be "on", see below for format
dudes		list of "dudes"; see implementation and examples for details

Schedule item should be in form:

state: ON
start: [h, m]
end: [h, m]

Where h is int hours (0 - 23) and m is int minutes (0 - 59)

Usage

Only argument is config file node run.js config/halloween-dotstar.yml

Install

yarn install # or npm install

I use pm2 to start on boot:

yarn global add pm2 # or npm install -g pm2
pm2 startup # follow instructions
pm2 start --name led-dudes run.js -- config/halloween-dotstar.yml
pm2 save

Note that you will need to run as root if you use neopixel (WS281x) mode. For example:

sudo startup
sudo pm2 start --name led-dudes run.js -- config/halloween-neopixel.yml
sudo pm2 save