DS18B20单总线温度传输 在1602LCD上显示 当前温度 对18B20的操作时序 每一步都有详细的注释 1602也有注释 很容易看懂-DS18B20 transmission in single-bus temperature 1602LCD show the current temperature on the operation of timing 18B20 have detailed every step of Notes 1602 Notes also have very eas