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)
