Capacitive fingerprint reader

This capacitive fingerprint reader from Waveshare can be used to build access controls and electronic door locks with Arduino, Raspberry Pi or STM32. The module with STM32F105R8 processor handles capture, image processing, template storage and matching, and is controlled with simple commands.

Recommended Accessories:

• Dupont Cable M-M 20cm 20 Pieces

Features:

• Communication via UART or USB
• Sensor connected to the board with a flat cable
• Detection with a light touch on the sensor, without pressing
• Fingerprint data can be written and read
• In sleep mode, the WAKE pin reports a finger on the sensor, hence low power consumption
• Documentation and examples for Raspberry Pi, Arduino and STM32 in the wiki, some programs in Chinese

Application Examples:

• Lock and safe compartment with fingerprint
• Access control and door locking system
• Time recording for arrival and departure

Documentation:

• Wiki Waveshare
• User manual Waveshare (PDF)

Technical Data:

• Processor: STM32F105
• Sensor: semiconductor, capacitive measuring method
• Operating voltage: 3.3 V to 5 V
• Communication: UART or USB
• Connections: VCC, GND, TXD, RXD, WAKE, RST
• Image: 508 DPI
• Image resolution: 192 × 256
• Memory: 1000 fingerprints
• Security level: 0 to 9, default 5
• Matching time: 1 s
• False acceptance rate: 0.0001 %
• False rejection rate: 0.01 %
• Current in operation: below 40 mA
• Module dimensions: 45 × 30 mm
• Sensor dimensions: 33.4 × 20.4 mm
• Sensor sensing area: 9.6 × 12.8 mm
• Weight: 28 g

Scope of Delivery:

• 1× Capacitive fingerprint reader
• 1× Cable PH2.0 to 6-pin female Dupont, 20 cm