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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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