test black

while true do

local function pulseBlack(num)
    for i = 1,num do
    redstone.setBundledOutput("back", colors.black)
    sleep(1)
    redstone.setBundledOutput("back", 0)
    sleep(1)
end

local function black()
    pulseBlack(turtle.getItemCount(1)-0)
end

local function check()
    if turtle.compareTo(2) == true then
        black()
    else
        dropDown()
    sleep(5)
end

local function run()
    turtle.select(1)
  if turtle.getItemCount(1) < 1 then
        turtle.suck()
        else
    check()
    dropDown()
sleep(5)
end

run()
end
end
end
end