Scirpt to change color of RGB LED on Unifi U6-Mesh

light_cycle_v2.sh

#!/bin/sh

# This function takes RGB values and writes them to the LED device
set_led_color() {
  echo -n "$1,$2,$3" > /proc/ubnt_ledbar/custom_color
}

# This function smoothly transitions from one color to another
transition_color() {
  local startR=$1
  local startG=$2
  local startB=$3
  local endR=$4
  local endG=$5
  local endB=$6
  local steps=20  # Use fewer steps since we're using a longer sleep duration
  local i=0

  while [ $i -le $steps ]; do
    local r=$(awk "BEGIN {print int($startR + ($endR - $startR) * $i / $steps)}")
    local g=$(awk "BEGIN {print int($startG + ($endG - $startG) * $i / $steps)}")
    local b=$(awk "BEGIN {print int($startB + ($endB - $startB) * $i / $steps)}")
    set_led_color $r $g $b
    sleep 1  # Use full second sleep
    i=$((i + 1))
  done
}

# The main loop to cycle through colors
while true; do
  # Transition from red to orange
  transition_color 254 0 0 254 165 0
  # Transition from orange to yellow
  transition_color 254 165 0 254 254 0
  # Transition from yellow to green
  transition_color 254 254 0 0 254 0
  # Transition from green to blue
  transition_color 0 254 0 0 0 254
  # Transition from blue to purple
  transition_color 0 0 254 160 32 240
  # Transition from purple back to red
  transition_color 160 32 240 254 0 0
done