Machine Wall Robot with Redstone Control

local robot = require("robot")
local component = require("component")
local sides = require("sides")

loop = 1

repeat
	if component.redstone.getInput(sides.right) < 1
		then
			robot.down()
			robot.down()
			robot.down()
			robot.down()
			robot.down()
			robot.suck(2)
			robot.turnAround()
			robot.select(2)
			robot.suck(1)
			robot.turnRight()
			robot.up()
			robot.up()
			robot.up()
			robot.up()
			robot.up()
			robot.forward()
			robot.turnRight()
			robot.forward()
			robot.turnLeft()
			robot.place()
			robot.up()
			robot.select(1)
			robot.place()
			robot.back()
			robot.drop(1)
			robot.turnRight()
			robot.back()
			robot.down()
			os.sleep(5)
		else
			print("sorry, but it looks like we already have too much machine wall!")
			os.sleep(5)
	end
until loop >1