OpenComputers broadcast send

local component = require("component")
local event = require("event")
local arg = {...}
local m = component.modem -- get primary modem component
m.open(225)
print(m.isOpen(225)) -- true
    -- Send some message.
m.broadcast(225, arg[1])
 -- Wait for a message from another network card.
local _, _, from, port, _, message = event.pull("modem_message")
print("Got a message from " .. from .. " on port " .. port .. ": " .. tostring(message))

local _, _, from, port, _, message = event.pull("modem_message")
print("Got a message from " .. from .. " on port " .. port .. ": " .. tostring(message))