NXP Semiconductors
MCU-SMHMI-UG
Smart HMI User Guide
Figure 6. Startup screen
Each of the out-of-box demo applications is described in more depth in the following
sections.
5.2 Coffee machine
5.2.1 Overview
The coffee machine application, preprogrammed in the SLN-TLHMI-IOT kit, presents
a demo application. This application integrates both face and multi-language speech
recognition while showcasing the advanced graphics capabilities of the RT117H’s 2D
GPU as well.
In the demo, users can select their coffee preferences using onscreen touch controls
and hands-free voice control. After selecting their preferred coffee, they can save their
order by anonymously associating it with their face. The next time that face is recognized,
they can either choose a new coffee selection or automatically use their saved coffee
selection.
The following sections describe the out-of-box features of the coffee machine demo and
their usage.
5.2.2 Standby screen
After exiting the startup screen, a standby screen is displayed, which acts as a screen
saver to indicate that the system is waiting for user interaction. The standby screen
is shown in a few different scenarios, including: after startup, after coffee has finished
brewing, and after a ~60 second timeout with no user interaction (voice commands/touch
controls) has been reached.
MCU-SMHMI-UG
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User guide
Rev. 0 — 29 September 2022
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