用PIC16F877A单片机和两只七段式LED数码管制作一个能够测量和显示室温的简易数显温度计。要求测量范围为0~40℃，误差控制在±1℃以内。当用手触摸温度传感器时，能够观测到显示温度随之变化。-Able to measure and display the room temperature PIC16F877A microcontroller and two seven-segment LED digital tube making a simple digital thermometer. Require measuring range of 0 ~ 40 ℃, error control in less than 1 ℃. When touch temperature sensor to the display can be observed temperature changes accordingly.