revolving door code

while true do
os.pullEvent = os.pullEventRaw
term.setCursorPos(1, 1)
term.clear()
term.write("password :")
		if read()=="1156" then
		term.clear()
		sleep(0.5)
		redstone.setOutput("bottom", not redstone.getOutput("bottom"))
        sleep(0.1)
        redstone.setOutput("bottom", not redstone.getOutput("bottom"))
    end
end