利用NTC低价热敏电阻做的温度表,程序中使用二分法查表,SPI送数据到LCD显示,选好充放电电容时室温误差在0.5摄氏度左右.-Use of low-cost NTC thermistor thermometer to do, look-up table used in the program dichotomy, SPI sending data to the LCD display, choose a room temperature charge and discharge capacitance error of 0.5 degrees Celsius.