startup

local modem = peripheral.wrap("top")
modem.open(1)
  event = os.pullEvent()
while true do
local event, modemSide, senderChannel,
  replyChannel, message, senderDistance = os.pullEvent("modem_message")
  if event == "modem_message" then
    if message:find("Pozar") then
      rs.setOutput("left", true)
    else
      if message:find("TR1") then
        if redstone.getInput("left") == true then
          rs.setOutput("left", false)
        else
          rs.setOutput("left", true)
        end
    end
  end
  if redstone.getInput("left") == true then
    modem.transmit(3, 1, "TR1_OFF")
  else
    modem.transmit(3, 1, "TR1_ON")
  end
end
end