Contactless Gesture-based Switch Panel for Lifts

The Contactless Gesture-based Switch Panel for Lifts operates by integrating optical gesture sensing with a microcontroller and visual feedback interface. At the core of the system is the Arduino, which coordinates data communication and controls the lift motor mechanism components based on user input. When a user waves their hand near the APDS9960 gesture sensor, the sensor uses integrated infrared photodiodes to detect directional motion—such as left, right, up, or down—by measuring the reflection of emitted light off the user's hand. The Arduino continuously polls this sensor over a digital communication interface to interpret the specific gesture command. Once a valid gesture is recognized, the microcontroller triggers the appropriate lift motor mechanism components to simulate floor selection or cabin movement. Simultaneously, the system updates the user interface by sending data to an SSD1306 OLED display, which visually renders the current status, selected floor, or system state. Power and signal routing are established using standard connecting wires to link the sensor and display modules to the Arduino board. The software environment relies on specialized libraries, including the U8g2 library for rendering graphics on the OLED screen and the APDS9960 library for decoding motion data into actionable digital signals, creating a seamless, touch-free human-machine interface suitable for modern elevator control systems.