Create Vault Display Server

-- Set the vault and monitor peripherals
function monitorSearch()
   local names = peripheral.getNames()
   local i, name
   for i, name in pairs(names) do
      if peripheral.getType(name) == "monitor" then
         return peripheral.wrap(name)
      else
         --return null
      end
   end
end

function modemSearch()
   local names = peripheral.getNames()
   local i, name
   for i, name in pairs(names) do
      if peripheral.getType(name) == "modem" then
         return peripheral.wrap(name)
      else
         --return null
      end
   end
end

monitor = monitorSearch()
modem = modemSearch()

modem.open(1)
modem.open(2)

while true do
   local event, side, channel, replyChannel, message, distance
   event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
   if((channel == 1) and (message == "Hello")) then
      modem.transmit(replyChannel, 1, "Confirmed")
   elseif(channel == 2) then
      charPos = string.find(message,":")
      qty = string.sub(message,(charPos+1))
      name = string.sub(message,0,(charPos-1))
      print(name.." "..qty)
      modem.transmit(replyChannel, 2, "Okay")
   end
end