基于AT89C51RC单片机的科学计算器，采用8位数码管扫描显示，矩阵键盘采用反转法扫描，效率更高，速度更快。-Based on the AT89C51RC microcontroller scientific calculator, the use of 8 digital tube scanning display, matrix keyboard using reverse scanning method, the efficiency is higher, faster.

使用AT89C51RC单片机，即 51单片机，HC-06 蓝牙模块，用户在手机端下载一个蓝牙串口助手，单片机和手机端通过蓝牙通讯；烧写好程序到单片机后，手机连接HC-06 蓝牙，然后就可以在手机显示温湿度了。(Using the AT89C51RC single chip microcomputer, i.e. 51 single-chip microcomputer, hc-06 bluetooth module, the user can download a bluetooth seria