The R503-M22 Capacitive Fingerprint Sensor Module is a compact biometric reader designed for fingerprint capture and recognition in electronics and access-control projects. Running on 3.3V with a standard UART serial interface, it connects easily to popular microcontrollers and development boards, while its IP65 rating helps it stand up to dust and water exposure. It suits makers, hobbyists, small workshops, and anyone building a smart door lock, attendance system, or DIY security project.
Key features
- Capacitive fingerprint sensing for reliable enrollment and matching.
- Operates at 3.3V for low-power microcontroller setups.
- UART serial interface for simple wiring and integration.
- IP65 rating for dust and water resistance.
- Compact module that fits neatly into custom enclosures.
Typical uses
- Smart door locks and electronic access control.
- Attendance and time-tracking systems.
- Arduino, ESP32, and Raspberry Pi based DIY projects.
- Safe boxes, lockers, and secure cabinets.
How to choose / tips
- Confirm your board supports a 3.3V logic level and a UART connection.
- Plan a clean mounting spot so the sensor surface stays accessible and protected.
- Keep wiring short and tidy for stable serial communication.
Why tna W rna
At tna W rna we focus on quality components and reliable sourcing, with fast delivery across Egypt and cash on delivery for a smooth, trustworthy buying experience.
