用cvavr自带的库函数做的ds18b20带lcd显示的程序，时序很准，可传输400多米-Built-in library functions with cvavr do ds18b20 with lcd display program, timing is very accurate and can be transmitted more than 400 meters

DS18b20温度传感器，用软件CVAVR实现，通过12864LCD显示温度值-DS18b20 temperature sensors, software CVAVR achieve, through 12864LCD display temperature values