Door controller

local ID = 240

term.clear()
term.setCursorPos(1,1)

rednet.open("left") -- only need to open once, not each loop

while true do
  local event, player = os.pullEventRaw('player') -- wait here for a player... reduces lag... using pullEventRaw means the program cannot be terminated

  if player == 'Plazter' or 'AlternateLogic' then
        rednet.send(ID, player)
        print("Player: "..player.." entered!")
        rs.setOutput("bottom", false)

        os.startTimer(2) -- the following 2 lines is a way to sleep without allowing program termination
        os.pullEventRaw('timer')

        rs.setOutput("bottom", true)
  else
        rednet.send(ID, "Unauthorized")
        print(player.." tryed to enter the plazter cave!!")
  end
end