Similarly, DEL/OK key also has the same double function like when user enrolls new finger, then he/she need to select finger ID by using another two key namely UP and DOWN.
Fingerprint attendance system download serial#
Besides enroll key is also used to download attendance data over serial monitor.
ENROLL key has both enrollment and back function. This time ENROLL key behave as Back key, i.e. Now if at this time user does not want to proceed further then he/she can press ENROLL key again to go back. So when the user wants to enroll new finger then he/she need to press ENROLL key then LCD asks for the ID, where user want to be store the finger print image. ENROLL key is used for enrollment of a new person into the system. Here we are using 4 push buttons to enroll, Delete, UP/Down. In this fingerprint attendance system circuit, we used Fingerprint Sensor module to authenticate a true person or employee by taking their finger input in the system.
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