openDoor

function addBundled(s, c)
  rs.setBundledOutput(s, colors.combine(rs.getBundledOutput(s), c))
end

function removeBundled(s, c)
  rs.setBundledOutput(s, colors.subtract(rs.getBundledOutput(s), c))
end

function main()
  addBundled("back", colors.green) --Start Klaxon
  addBundled("back", colors.yellow) --start pulling down
  sleep(1)
  for i = 1, 8, 1 do --Pulse Door pusher
    addBundled("back", colors.red)
    sleep(3)
    removeBundled("back", colors.red)
  end
  removeBundled("back", colors.yellow) --stop pulling
  sleep(1)
  print("retracting")
  addBundled("back", colors.white) --retract arm
  sleep(10)
  removeBundled("back", colors.white)
  removeBundled("back", colors.green) --stop klaxon

end



main()