Door access control witch E-paper QR-code reader

DESCRIPTION

Because I've bought e-paper for many years, I still don't know how to use it. Until a few days ago, when I found it, it still showed the old message that I had tried for a long time(5 year). So I came up with the idea of this project.

STEP1:  E-pager Gen QR Code for Test

STEP2: Assembly board for Test

Because originally using ESP32CAM a problems with slow 
reading In low light,Therefore finding a device 
that can be used instead

                                                   QR Code :   Cod fly aibcy yhd -9800

                                                    RS232  Pin out

Source Code Test

https://github.com/YakrooThai/Door-access-QR-code/blob/main/qryou.ino