对HT1621的驱动，提供C及汇编代码， 注有详细的代码说明，在C51，PIC上测试OK， 绝对有用。-The driver of the HT1621 to provide C and assembly code, annotated with detailed code instructions, in the C51, PIC test OK, not in vain.

c8051f020单片机PCA程序代码，已上机验证程序可直接使用，并关键部分有注释-c8051f020 SCM PCA program code, the program has been verified on the machine can be used directly, and a key part of the annotated

电脑鼠走迷宫程序，含底层驱动，走迷宫算法，有注解-Computer Mouse Maze procedures, including the underlying driver Maze algorithm, annotated

MMA8451三轴加速度计 STM32F103c8t6单片机控制程序，可以设置加速度计量程，±2g、±4g、±8g，但是程序里2g和4g模式下精度很高很准确，8g模式下采集到的数据存在问题，通过串口打印输出，显示单位是g。程序内关键部分已添加注释，希望可以帮到大家。(MMA8451 three axis accelerometer STM32F103c8t6 microcontroller control program, can set the accelerometer range, + 2