grow r502-a new circular ring led control uart dc3.3v mx1.0-6pin capacitive fingerprint module sensor scanner

1. integrated image collecting and algorithm chip together, all-in-one 2. the flexibility to adapt to the conditions was the fingers, whether it is dry fingers, wet fingers, light texture fingerprints fingers, and old fingers, all have high recognition rate 3. the main application areas: can be embedded into a variety of end products, such as: access control, attendance, safety deposit box