christmas_lights.rb

#!/usr/bin/env ruby
# GNU/GPL V3+
# Lights used are George Home 20 String Lights
# ASDA LED-20-BO (coloured) LED-20-BO-W (White/Clear)

require 'wiringpi'

puts "Pi Christmas Lights"
puts "Written by Affix"
puts "Created using ASDA George home 20 Battery string lights"
puts "Cut the battery packs off and use pi pins"

gpio = WiringPi::GPIO.new
led = 1  # Coloured LEDs
wled = 4 # White LEDs

# Set pins as output
gpio.pin_mode wled, WiringPi::OUTPUT
gpio.pin_mode led, WiringPi::OUTPUT

# setup pwm
gpio.soft_pwm_create(wled, 0, 50)
gpio.soft_pwm_create(led, 0, 50)


# Set Initial States
gpio.soft_pwm_write led, 0
gpio.soft_pwm_write wled, 50

def flashing1(gpio, led, wled)
  puts "Slow Flashing"
  gpio.soft_pwm_write led, 50
  gpio.soft_pwm_write wled, 0
  sleep 1
  gpio.soft_pwm_write led, 0
  gpio.soft_pwm_write wled, 50
  sleep 1
end

def flashing2(gpio, led, wled)
  puts "Rapid Flashing"
  gpio.soft_pwm_write led, 50
  gpio.soft_pwm_write wled, 0
  sleep 0.3
  gpio.soft_pwm_write led, 0
  gpio.soft_pwm_write wled, 50
  sleep 0.3
end

def fade(gpio, led, wled)
  puts "Fading"
  gpio.soft_pwm_write led, 0
  gpio.soft_pwm_write wled, 0
  ledval = 0
  wledval = 0

  while ledval != 50
        ledval = ledval + 1
        gpio.soft_pwm_write led, ledval
	sleep 0.1
  end

  while ledval != wledval
	ledval = ledval - 1
	gpio.soft_pwm_write led, ledval
	sleep 0.1
  end

  while wledval != 50
	wledval = wledval + 1
	gpio.soft_pwm_write wled, wledval
        sleep 0.1
  end

  while wledval != ledval
        wledval = wledval - 1
        gpio.soft_pwm_write wled, wledval
        sleep 0.1
  end

end

# Loop through modes
loop do
  10.times do
	flashing1(gpio, led, wled)
  end
  10.times do
	flashing2(gpio, led, wled)
  end
  10.times do
    fade(gpio, led, wled)
  end
end