Capacitive fingerprint sensor (I2C, 80 fingerprints) / DFRobot Gravity

Gravity: Capacitive fingerprint sensor (I2C, 80 fingerprints) - ideal for education & makerspaces

With the Gravity capacitive fingerprint sensor, you can bring the topic of biometrics into the classroom in a practical way: learners can implement a real identity check - from the first fingerprint enrollment to the secure release of a project via I2C to Arduino, micro:bit & Co.

Why it is suitable for school, MINT & AGs

Quick introduction to embedded security: create, search, delete fingerprints - directly via the appropriate Arduino- библиотек / library and sample codes.

Robust & student-friendly: Compact design, CNC metal ring and LED ring as visible feedback (ideal for UX/UI learning effects).

Plug-and-play in the classroom: Gravity plug-in system, operation at 3.3-5 V, communication via I2C.

Technical highlights (short)

Stores up to 80 fingerprints

360° capture & matching + self-learning for more reliable recognition

Verification time approx. 300-400 ms, 508 dpi, sensor area 8 × 8 mm

Typical teaching and project ideas

"Smart Locker": Locker/material cabinet for registered users only

"Access control" for the makerspace toolboard: release of devices/prototypes

Ethics & data protection in IT: discuss the opportunities/risks of biometric procedures (incl. policy design)

Scope of delivery

Sensor, adapter, cable (including Gravity-4P)