local gate = peripheral.wrap("back")
local gateData = gate.get()
local state = 0

while true do
	if gateData["Inventory Empty"] then
		redstone.setOutput("top", true)
		if state ~= 1 then print("deactivating Bio-Reactor") end
		state = 1
	elseif gateData["Inventory Full"] then
		redstone.setOutput("top", false)
		if state ~= 2 then print("activating Bio-Reactor") end
		state = 2
	end
	sleep(5)
end