复制页面串口通信约定 波特率：115200 数据位：8 奇偶校验：无 停止位：1 数据流控：无 帧格式说明 字段长度说明帧头1消息帧的起始标志，使用固定值0xa5版本1定义不同版本，本版固定为0x02命令1定义不同命令长度2数据的总长度，大端法表示数据n承载消息数据的字段校验1从帧头开始对所有字段按字节求和对256取余
'%3e%3cpath%20d='M44.867217,0.0054376148%20C130.715579,1.00591567%20200,70.9091172%20200,156.994562%20L199.986321,155.127494%20C199.384888,180.009127%20179.026368,199.994562%20154,199.994562%20L46,199.994562%20C20.5949015,199.994562%200,179.399661%200,153.994562%20L0,45.9945624%20C0,21.0975659%2019.7793434,0.820282524%2044.4815926,0.0191499894%20Z'%20fill='%2300D492'%3e%3c/path%3e%3cpath%20d='M123.867217,0.0054376148%20C209.715579,1.00591567%20279,70.9091172%20279,156.994562%20L278.986321,155.127494%20C278.384888,180.009127%20258.026368,199.994562%20233,199.994562%20L125,199.994562%20C99.5949015,199.994562%2079,179.399661%2079,153.994562%20L79,45.9945624%20C79,21.0975659%2098.7793434,0.820282524%20123.481593,0.0191499894%20Z'%20id='clarify-right'%20fill-opacity='0.6'%20fill='%2300F6C9'%20transform='translate(179,%20100)%20rotate(-90)%20translate(-179,%20-100)'%3e%3c/path%3e%3cpath%20d='M199.979267,154.416906%20L199.984438,155.157125%20L199.962366,155.872459%20C198.977251,180.406837%20178.776104,199.994562%20154,199.994562%20L124.372438,199.994125%20L124.249053,199.994081%20C99.6939678,199.603921%2079.8122712,179.973634%2079.01915,155.518407%20L79.0054376,155.132783%20C79.5830823,105.566626%20103.129768,61.5221348%20139.498462,33.1463428%20C175.69419,61.3871018%20199.186123,105.143863%20199.979267,154.416906%20Z'%20id='形状结合'%20fill='%2300F692'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/svg%3e)