script

local input
local pass = "1342z"

function sleep(n)
    local t0 = os.clock()
    while os.clock() - t0 <= n do

    end
end

while true do
    print("Type the password:")
    input = read()
    if input==pass then
        shell.run("clear")
        print("!!! Access Granted !!!")
        redstone.setAnalogOutput("back", 15)
        sleep(5)
        redstone.setAnalogOutput("back", 0)
        shell.run("clear")
    else
        shell.run("clear")
        print("!!! Access Denied !!!")
        sleep(1)
        shell.run("clear")
    end
end