README.txt

# Demo code for FPC1020 fingerprint sensor.

Author: Deray

Origin: Adafruit Industries (found in LICENSE)

License: BSD

Logs:
- 2015/10/07 Deray's zip
- 2019/01/20 Tokuhira mods

Documents:
- http://deegou.com/hardware/fpc1020/ => missing
- https://www.shenzhen2u.com/Capacitive-Fingerprint-Sensor-FPC1020.html
- https://docs.m5stack.com/#/en/unit/finger#id=description
- https://www.shenzhen2u.com/doc/Module/Fingerprint/710-FPC1020_PB3_Product-Specification.pdf
- https://github.com/m5stack/M5-Schematic/blob/master/Units/UNIT_FINGER.pdf
- https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Fingerprint
- https://github.com/tokuhira/M5Stack_FINGER_SerialDemo

Note:
  Respecting the original, I verified the operation with M5Stack by minimal modification.
  Since it is not a robust code, I just uploaded the code for UNIT's healthness check.

Todo:
- Making the UI to run without debug serial connection.
- Looking for the datasheet of the unit in English or Japanese.