ce下的指纹识别模块。使用的是瀚兴科技M620V-S指纹模块，通过串口控制，协议比较简单，应用相当方便。很不错的哦。-ce under the fingerprint identification module. Using Xinhan Technology M620V-S Fingerprint module, through the serial port control, the agreement is relatively simple, the application very e