DS18B20液晶显示602液晶关键在于分清1、初始化参数2、写指令3、写数据4、合适的时序及延时 为方便不进行忙检测，直接延时多增加一点-DS18B20 liquid crystal display602 LCD key is to distinguish between an initialization parameter, write instruction 3, write data, the appropriate timing and delay　For the convenience of the busy detection, direct delay to add a little more