基于STM32的手势识别及手势密码系统，使用FDC2214电容数字传感器，实现手势识别功能(Based on STM32 gesture recognition and gesture cipher system, FDC2214 capacitive digital sensor is used to realize gesture recognition function.)

纸张计数，看采集数据精确程度，基本40张没问题，每个人有不同的方案，仅供参考(Paper counting, to see the accuracy of data collection, basically 40 pieces of no problem, each person has a different plan, for reference only.)