Timer

print("Enter Delay below: ")

local sec = tonumber(io.read())
local secO = sec
print("Enter if pulse below")
local pulse = io.read()
if pulse == "yes"
then
    secO = 0.1
end
while true do
    redstone.setOutput("back",true)
    sleep(secO)
    redstone.setOutput("back",false)
    sleep(sec)
end