FarmWool

function dropIfFull()
	for i=1,16 do
		turtle.select(i)
		local itemDetail = turtle.getItemDetail()
		if itemDetail then
			if itemDetail.name ~= 'minecraft:shears' then
				turtle.dropDown()
			end
		end

	end
end

function shear()
	local foundShear = false
	for i=1,16 do
		turtle.select(i)
		local itemDetail = turtle.getItemDetail()
		if itemDetail then
			if itemDetail.name == 'minecraft:shears' then
				turtle.place()
				foundShear = true
				break
			end
		end
	end

	if foundShear == false then
		error()
	end
end

while true do
	dropIfFull()
	shear()
	os.sleep(30)
end