can I ask, if I have that complete project, and I applied it on a door.how does the person inside the room can get out if its lock and the only way to unlock it is to place your fingerprint sensor found outside the door?
If any one need ready made module to control fingerprint module please see the www.ebay.in/itm/R305-FingerPrint-Module-Interfacing-Board/172966534209?hash=item28459bdc41:g:YHsAAOSwStxZypJi no need to write complete protocol for module if u want that module please Whatsapp me at 9024375082
Please Buy finger Print module R305 from here and get free code and help for developing your project. Thanks..:) www.ebay.in/itm/R305-Finger-Print-Sensor-for-Arduino-8051-and-PIC/173150251919?hash=item28508f2b8f:g:NzgAAOSwrFtaDWgK