R503 - Circular Capacitive Fingerprint Identification Module with 2-Color Ring Indicator Light Capacitive Fingerprint Scanner, R 503/R-503

R503 Fingerprint Identification Module – Circular Capacitive Fingerprint Scanner with 2-Color LED Ring The R503 Fingerprint Identification Module is a compact circular capacitive fingerprint recognition sensor designed for secure biometric identification and access-control applications. It can capture and recognize fingerprints and communicate with a microcontroller or embedded system for authentication and user management. The module features a 2-color ring indicator light, providing visual feedback during fingerprint detection, identification, and other operating conditions. Its compact circular design makes it suitable for integrating fingerprint authentication into electronic devices, access-control systems, smart locks, attendance systems, and DIY security projects. Specifications Model: R503 / R-503 Type: Capacitive Fingerprint Identification Module Sensor: Circular capacitive fingerprint sensor Fingerprint Recognition: Yes Indicator: 2-color LED ring indicator Communication: Serial interface Interface: UART Operating Voltage: Typically 3.3V Application: Biometric identification and authentication Design: Compact circular module Features Fast fingerprint identification Capacitive fingerprint sensing technology Built-in fingerprint processing and matching 2-color LED ring for status indication Compact and easy-to-integrate design Suitable for microcontroller-based projects Ideal for secure authentication applications Applications Fingerprint door locks Access-control systems Smart security systems Attendance and time-recording systems Arduino and ESP32 biometric projects Smart cabinets and lockers Electronic safes IoT security projects DIY fingerprint authentication systems