Sensor
As the name suggests the Gravity Gesture & Touch Sensor from DFRobots offers both gesture recognition and touch detecting functionalities in a single module. The module offers a configurable gesture detection range with in 0-30cm.
MAX25405 Infrared-Based Dynamic Gesture Sensor Detects Broad Range of Hand Gestures at Greater Distances to Ensure Safety on Road
Maxim Integrated Products has introduced the next generation MAX25405 infrared-based dynamic optical sensor that detects wider proximity of movement and doubles the sensing range to 40cm when compared to earlier generations, in a quarter of the size and at 10x lower cost than time-of-fligh