FINGERPRINT DOOR LOCK FOR MY LAB

So Main fingerprint module here is GROW KR 501 fingerprint module which can save upto 20 fingerprints and does not need any type of external microcontroller it have 6 wires 2 for power supply and 2 are for high and low output 1 wire is for factory reset .It outputs 500 ma on high pin for 1 second and its really easy to use . Here i have used - 1) Grow KR-501 fingerprint module 2) Delay timer 3) TTP 223 and step down module 4) 12 v battery backup with charger 5) 12 v Solenoid lock

All plastic parts are 3D printed on my ENDER 3 V 2

Here is my tutorial on working of GROW KR 501 Fingerprint module - https://youtu.be/Vwd2qCZT4bc?si=_uAb3JIPFgb1ZL15