ice

local modem=peripheral.wrap("top")
modem.open(2)
while true do
  local event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
  if message == "ice_on" then
    rs.setOutput("right",true)
  end
  if message == "ice_off" then
    rs.setOutput("right",false)
  end
end