Sensor

os.pullEvent = os.pullEventRaw

sensor = peripheral.wrap("back")

whitelist = {
"belgiumjnv6",
"Marshall_Hopson",
"Plazter",
"dutchpro01",
"thom8567",
"Jel_",}

while true do
  term.clear()
  term.setCursorPos(1,1)
  if rs.getInput("left") then
    rs.setOutput("top", false)
  else
  rs.setOutput("top", true)
  for k, v in pairs(sensor.getPlayers()) do
    for a, b in pairs(v) do
        for i, j in pairs(whitelist) do
          if tostring(b) == j then
            print("whitelisted person: "..b.. " is in the room!")
            rs.setOutput("top", false)
            else
            --rs.setOutput("top", true)
          end
          --rs.setOutput("top", true)
        end
      --sleep(5)
      --rs.setOutput("top", true)
    end
  end
  end
  sleep(.2)
end