温度采集，stm32,串口通信！！！！！！！！！！！！！(Temperature acquisition, STM32, serial communication!!!!!!!!!!!!!)

在STM32上实现单线多个DS18B20实验，通过串口监测8个DS18B20测量的温度，芯片信号等(Several DS18B20 experiments on single line are implemented on STM32, and the temperature of 8 DS18B20 measurements, chip signal, etc. are monitored through serial port)