long distance button

peripheral.find("modem", rednet.open)
local input = false
print("Starting loop")
while (true)
do
  if (redstone.getInput("left")) then
    if (input == false) then
      print("Sending ping...")
      rednet.send(tonumber(arg[1]), "ping")
    end
    input = true
  else
    input = false
  end
  local id, msg = rednet.receive(nil, 0.1)
  if (id == tonumber(arg[1]) and msg == "ping") then
    print("Received ping...")
    redstone.setOutput("right", true)
    os.sleep(1)
    redstone.setOutput("right", false)
  end
end