A Blues Wireless Notecard provides cellular connectivity to a sound classification MCU. This is part of the elevator Digital Twin series.
It's an elevator with automatic doors. The code has two FSM, one for the motor that makes it go up and down and one for the automatic door.
A 3-story elevator with a mechanical door made from Lego Mindstorms and programmed on RoboCore. It moves up and down and reacts to buttons.
Voice control elevator
Control the smart home model with Arduino and sensor modules such as DHT11.