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  • bitdays.co.kr/2022/05/23/%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c-%ec%bb%a8%ed%8a%b8%eb%a1%a4%eb%9f%ac-mcu-%ec%8b%9c%ec%9e%a5-%eb%8f%99%ed%96%a5-%ec%a0%9c%ed%92%88-%ea%b7%9c%eb%aa%a8-%ec%88%98%ec%9d%b5-%eb%b6%84%ec%84%9d/ (port 80)