UART Capacitive Fingerprint Sensor

SKU: SEN0542

This fully integrated capacitive fingerprint sensor provides an efficient way for users to capture, process, store, and match fingerprints. Based on high-performance processor & semiconductor fingerprint sensor, it's equipped with built-in IDfinger6.0 fingerprint algorithm that enables it to complete fingerprint recognition independently. And when working with DFRobot Arduino library, the sensor can realize functions like fingerprint entry, deletion, and matching through UART. Also, upper computer software is provided to help users easily operate it. This low-power sensor comes with a compact size and delicate appearance and offers fast recognition and high security. Moreover, it supports 360-degree view object recognition and deep self-learning.

Front of capacitive fingerprint sensor module with labeled pins and circular button for Arduino UART interface.-DFRobot product sku:SEN0542 image.

Downloadable Resources

  • Docs
  • Tech Specs
  • Specification

    Dimension

    Parameter Details
    Operating Voltage 3.3 V
    Operating Current <40mA
    Communication Method UART
    Storage Capacity 80 fingerprints
    1: N Verification Time <0.5S
    Pixel Resolution 508dpi
    Number of Pixels 160x160
    Operating Environment -10-60℃/20%-80%RH
    Dimension diameter of 19mm/0.75"

    Pinout

    Front View

    Num Label Description
    Pin 1 GND Ground
    Pin 2 RX UART receive
    Pin 3 TX UART transmit
    Pin 4 VIN Processor Power supply (3.3V): operate when powered on, enter sleep mode when powered off
    Pin 5 IRQ Finger sensing output: active high
    Pin 6 3.3V Power supply for collector

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