print("Starting in 15 seconds")
print("Hold Crtl+T to cancel")
sleep(15)

while true do
  if not redstone.getInput("back") then
    print("Awaiting redstone signal")
  end
  while not redstone.getInput("back") do
    sleep(1)
  end
  shell.run("farm")
  
  for i = 10, 1, -1 do
    print("Waiting... " .. i .. " Minute" .. (i == 1 and "" or "s"))
    sleep(60)
  end
end