https://blog.wongcw.com/2020/02/14/mit%e5%9c%98%e9%9a%8a%e9%96%8b%e7%99%bcrfid%e5%82%b3%e6%84%9f%e5%99%a8%e5%8f%8a%e6%99%82%e6%8f%90%e9%86%92%e7%88%b6%e6%af%8d%e6%9b%b4%e6%8f%9b%e5%b0%bf%e4%b8%8d%e6%bf%95/
MIT團隊開發RFID傳感器及時提醒父母更換尿不濕