concrete.lua

-- A simple program to turn concrete powder into concrete.
-- Put concrete power into slot one, and concrete will come out on slot two.

while true do
    if turtle.getItemCount(1) >= 1 then
        turtle.select(1)
        turtle.place()
        turtle.select(2)
        turtle.dig()
        turtle.suck()
        turtle.select(1)
    else
        sleep()
    end
end