Gravity: Capacitive Fingerprint Sensor

A capacitive fingerprint sensor with integrated processing, storage, and matching built around the ID809 high-performance processor and IDfinger6.0 algorithm. The sensor handles all fingerprint recognition independently — registration, deletion, and verification — without external processing. Supports 360-degree fingerprint entry and self-learning to improve accuracy over time.

Equipped with the Gravity interface for easy connection via I2C, compatible with 3.3V and 5V controllers including Arduino UNO and micro:bit. Features a CNC metal ring with round breathing LED indicator.

Key Features

• All-in-One Processing – Integrated fingerprint collection, processing, storage, and matching
• 360° Entry – Fingerprint registration and matching from any angle
• Self-Learning – Improves recognition accuracy with repeated use
• Gravity I2C Interface – Plug-and-play with Arduino UNO, micro:bit, and more
• 3.3V and 5V Compatible – Works with a wide range of controllers
• Breathing LED – Visual status indicator with CNC metal ring

Specifications

• Processor – ID809
• Algorithm – IDfinger6.0
• Operating Voltage – 3.3–5V
• Operating Current – < 60mA
• Communication – I2C (Gravity interface)
• Storage Capacity – 80 fingerprints
• Verification Time – 300–400ms (1:1)
• Resolution – 508 DPI (160 × 160 pixels)
• Detection Area – 8.0 × 8.0mm
• Sensor Dimensions – 21mm diameter × 5mm height
• Adapter Dimensions – 22.5 × 32mm
• Operating Temperature – -40°C to 60°C

Ideal For

• Fingerprint door locks
• Drawer and cabinet locks
• Identity verification systems
• Access control and authorisation

Resources

• Product Wiki