This shield is based on Microchip MGC3130 chip, which enables the Raspberry Pi with 3D gesture recognition and motion tracking function. It can capture x y z position information, can also do proximity sensing and touch sensing, support tap and double click.
As shown in the figure below, the recognition area is divided into two parts: the strip area distributed around and a central panel.
The strip areas can sense the orientation change, including the North, South, West, and East. The central area can sense touch, tap, double click, and gestures in the air above. That's why we call it 3D Gesture & Tracking Shield, you don't even need to touch the central area directly, just wave your hand above the central area, and this shield can sense your movements.
Thanks to the Microchip’s patented GestIC® technology, this shield utilizes electrical near-field sensing to detect movements. The shield generates a magnetic field above the central panel when the hand approaches, it will interfere with the magnetic field, and the magnetic field receiver below the shield can detect the change.
This hat communicates with Raspberry Pi via the I2C interface, also we have reserved a Grove I2C connector in case you need to work with other modules.