PartyHouseEcho

local side = "left"
local text = "PartyHouse"
local mon = peripheral.wrap(side)
local last_message = ""
rednet.open("right")

mon.setTextScale(3)
while true do
  mon.setCursorPos(1,1)
  mon.write(text)
  mon.setCursorPos(2,2)
  mon.write(textutils.formatTime(os.time(),false))
  mon.setCursorPos(1,3)
  mon.write(last_message)

  id, message = rednet.receive(1)
  if message ~= nil and message ~= 'ACKNOWLEDGED' then
    write("received message from "..id..":\n"..message)
    last_message = message
    rednet.broadcast("ACKNOWLEDGED")
  end
  mon.clear()
  term.setCursorPos(1,1)
end

rednet.close("right")