base info: https://github.com/adafruit/Adafruit-Fingerprint-Sensor-Library
https://learn.adafruit.com/adafruit-optical-fingerprint-sensor/wiring-for-use-with-arduino
https://github.com/hanifizzudinrahman/Module-Fingerprint-DY50-FPM10A
https://www.hackster.io/remnis/fingerprint-sensor-with-an-arduino-or-an-esp-49194d
https://create.arduino.cc/projecthub/amalmathewtech/secure-your-logins-with-biometrics-30e7c3
https://randomnerdtutorials.com/fingerprint-sensor-module-with-arduino/
http://server4.eca.ir/eshop/000/AS608/Synochip-AS608.pdf
https://nicuflorica.blogspot.com/2019/10/senzor-de-amprenta-dy50.html
