Chapter 4
Local face management
To evaluate the smart-lock application pre-programmed on the SLN-VIZN3D-IOT kit, you must first register a face.
4.1 Registering a face
The onboard pushbuttons are pre-configured to allow direct access to some of the kit’s most useful features, like face registering
and de-registering and entering and exiting
. To manually register a new face, press and release the SW3 button
located at the back of the kit.
Figure 7. Manual registration button
The speaker plays an audio message, confirming that the registration started. During the face registration process, the
“Registering” message appears in green at the top of the screen and a green bounding box appears to help align the user’s face.
Additionally, a timeout counter represented by a blue bar located at the bottom of the screen appears automatically and starts to
count down.
To register your face, look straight-on to the camera while aligning your face inside the bounding box guidelines presented by
the UI.
Figure 8. Registration in progress
To cancel the registration, press and release the SW3 button again or wait for the registration process to time out (~5 s).
NXP Semiconductors
SLN-VIZN3D-IOT Kit User Guide, Rev. 0, 01 November 2021
User Guide
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