http://124.222.62.86/yd-data/pyboard/pyboard%20mini%EF%BC%88411CE%EF%BC%89/PYB411CEad.rar
http://124.222.62.86/yd-data/pyboard/pyboard%20mini%EF%BC%88411CE%EF%BC%89/PYB411CEchicun.PDF
http://124.222.62.86/yd-data/pyboard/pyboard%20mini%EF%BC%88411CE%EF%BC%89/YD-Pyboard411MINISCH.PDF