R503 Fingerprint Module with RGB Indicator

Add fingerprint recognition to a compatible controller project with an R503 capacitive module and RGB status ring.

✅ Capture a fingerprint at the panel - The capacitive sensing area supplies the fingerprint input for the supported recognition workflow.

✅ Keep templates in the module - Storage for up to 200 templates provides the described enrolled-fingerprint capacity.

✅ Give visible status feedback - An RGB ring lets the supported system show operation states at the sensor.

✅ Connect to a compatible host - A 3.3 V TTL UART interface provides the module's communication path.

Build the access logic around the sensor

A fingerprint module supplies a sensing and matching component for an embedded design. The host system still needs suitable enrolment, deletion and access-control logic for the intended application.

Check power, pinout and command support before connection, and handle biometric data appropriately. A module is not a complete lock or certified security system, and installation conditions affect the finished assembly's protection.

Technical details

• Model: R503
• Supply: DC 3.3 V
• Interface: UART, 3.3 V TTL
• Default baud reference: 57600
• Template capacity reference: 200
• Image reference: 192 × 192 pixels
• Mounting reference: M25 thread
• Package: one module

Add a matched fingerprint interface to your embedded project.