说明：  该源代码为基于AVR单片机的温度加热控制系统的源程序。测温采用的的是热敏电阻，加热控制采用的是PID算法。另：编译器我用的是CVAVR 版本号是1.25.7a
(The source code for AVR-based single-chip temperature heating control system of the source. Temperature measurement is used in thermistor, heating control PID algorithm is used. The other: the compiler I use is CVAVR version 1.25.7a)