Pasted

--remote
clients = {}
 
function clr()
    term.clear()
    term.setCursorPos(1,1)
end
 
local function openRednet()
  for _,side in ipairs({"top", "bottom", "front", "left", "right", "back"}) do
    if peripheral.isPresent(side) and peripheral.getType(side) == "modem" then
      rednet.open(side) 
      return side
    end
  end
  print("no modem present")
end
 
local function searchForNewClients()
  while true do
    rednet.broadcast("newhost")
    os.startTimer(15)
    local event, id, message, distance = os.pullEvent()
    if event == "rednet_message" and message == "pairing" then
      rednet.send(id,"connected " .. os.getComputerID())
      clients[table.getn(clients)] = id
      return true
    elseif event == "timer" then
      return false
    end
  end
end
 
local function main()
  while true do
    clr()
    
    
    sleep(5)
  end
end
 
local function background()
  while true do
    searchForNewClients()
    os.sleep(10)
  end
end
 
--Main
side = openRednet()
if side == nil then
print("no modem found")
else
  parallel.waitForAll(main(), background())
  while true do
    clr()
    print("Enter the command")
    term.setCursorPos(2,3)
    local command = read()
    rednet.broadcast(command)
    term.setCursorPos(2,5)
    print("Sending ...")
    sleep(0.25)
  end
end