startup

rednet.open('back')
status = nil

while true do
  if status == nil then
    print("Send status to #148")
    rednet.send(148, "status")
    local res1, res2 = rednet.receive()
    status = res2
    print("Received status: "..tostring(status).."\nReload..")
    sleep(4)
  end

  if status then
    term.clear()
    term.setCursorPos(1, 1)
    print("CLICCA UN TASTO PER PARTIRE!")
    os.pullEvent('key')
    rednet.send(148, "down")
    print("\nL'ascensore sta scendendo...")
    rednet.receive()
    status = false
  else
    term.clear()
    term.setCursorPos(1, 1)
    print("CLICCA UN TASTO PER CHIAMARE")
    os.pullEvent('key')
    rednet.send(148, "up")
    print("\nL'ascensore sta salendo...")
    rednet.receive()
    status = true
  end
end