M5stack Finger Print Sensor Unit (FPC1020A)

The M5Stack FINGER Unit is a compact fingerprint reading module based on the FPC1020A capacitive sensor chip. This all-in-one solution simplifies fingerprint enrollment, verification, and management for your electronics projects.

Connected via UART protocol (default 19200 bauds), this sensor provides fast recognition with adjustable security levels. Its miniaturized form factor and ultra-low power consumption make it ideal for embedded applications requiring reliable biometric authentication.

Specifications

• Capacitive semiconductor fingerprint sensor with pixel array
• Resolution: 256 gray levels per pixel
• 1:N recognition and 1:1 verification capabilities
• 360° finger rotation recognition support
• Storage capacity: up to 150 fingerprints
• Adjustable security level from 0 to 9 (default: 5)
• Output format: username, image, feature value (193 bytes)
• UART communication: 9600-115200 bauds (default: 19200 bauds)
• Operating temperature: -10°C to 60°C
• Module dimensions: 48 × 24 × 8 mm
• Net weight: 7 g

Package Contents

• 1x FINGER Unit (fingerprint sensor)
• 1x Grove Cable

This module is particularly suitable for building biometric attendance machines, secure lockers, or any project requiring fingerprint-based authentication.