startup.lua

while true do
    SIDE = "top"
    if redstone.testBundledInput(SIDE, colors.lime) == true then
        redstone.setBundledOutput(SIDE, colors.green)
        sleep(2)
    end
    if redstone.testBundledInput(SIDE, colors.red) == true then
        redstone.setBundledOutput(SIDE, colors.pink)
        sleep(2)
    end
    if redstone.testBundledInput(SIDE, colors.black) == true then
        redstone.setBundledOutput(SIDE, 0)
    end
    sleep(1)
end