MAX31865+PT100+STM32驱动，加中文数据手册-MAX31865+PT100+STM32 Driver，Chinese datasheet

AD5934 stm32f103驱动程序； 测量PT100温度探头计算温度； 测量电极间阻抗并换算成电导率。(AD5934 stm32f103 driver; Measuring the temperature of the PT100 temperature probe; The impedance between the electrodes is measured and converted into conductivity.)