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Four-in-one Smart Electronic Lock

  • Introduction

The four-in-one smart electronic lock supports password, fingerprint, RFID card, and app remote open functions. It also supports a convenient graphical touch interface, voice reminder function, low battery warning and external power backup. NuMicro® M251/M252 low-power microcontroller series is used to extend product execution time.

  • Features
    Low-power microcontroller extends product execution time up to 12 months
    -
    Floating security code and virtual bit password function
    -
    Maximum record of 100 fingerprints
    -
    Supports 20 sets of RFID cards
    -
    Remote temporary password and Bluetooth app open
  • Specifications
    - M251 / M252 ( 32 位 Arm® Cortex®-M23)
    - With Deep Power-down mode, power consumption is less than 1.3 μA
    - Rich communication peripherals for a variety of external expansion modules
    - Supports XOM (eXecute-Only Memory) and hardware AES encryption/ decryption for product security
    Supports high-precision ADC and OPA functions for accurate voltages
  • System Block Diagram

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