Evaluation Kit Microchip DM160217

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Detailed Description

This tool provides a complete solution for exploring the low-cost, high-performance MGC3130 3D Tracking and Gesture Controller.

This board is USB-powered, it contains a 7-inch sensing electrode, and it comes with the GestIC Technology Colibri Suite, which is a set of gestures running on the chip. In addition, Microchip's feature-rich Aurea Graphical User Interface (GUI) running on the Windows 7 Operating System provides control of the MGC3130's settings, making it easy to update and save parameters.

The MGC3130 is the first product based on Microchip’s GestIC technology. It is developed as a mixed signal controller. The MGC3130 has one transmit and five very sensitive receive channels that are capable to detect distortions of a transmitted electrical field (E-field) corresponding to capacitive changes in the femtofarad (1fF = 10-15F) range. In order to transmit and receive an electrical field, electrodes have to be connected to the
transmitting and receiving channels of the MGC3130 controller. The spatial arrangement of the electrodes allow the chip to determine the center of gravity of the electric field distortion, and thus position tracking of a user’s hand in the detection space. The entire system solution is composed by three main building blocks:

• MGC3130 Controller Chip
• Embedded GestIC Library
• External Electrodes

The MGC3130 features the following main building blocks:

• Low-noise Analog Front End (AFE)
• Digital Signal Processing Unit (SPU)
• Flexible Communication Interfaces

The MGC3130 controller provides a transmit signal to generate the E-field, conditions the analog signals from the receiving electrodes and processes this data digitally on the SPU. Data exchange between the MGC3130 and the host is conducted via the communication interfaces.

GestIC Library

The embedded GestIC library is optimized to ensure continuous and real-time free-space Position Tracking and Gesture Recognition, concurrently. It is fully configurable and allows required parameterization for individual application and electrode layouts.

External Electrodes

Five Rx electrodes and one Tx electrode are connected to MGC3130. An electrode needs to be individually designed for optimal E-field distribution and detection of E-field variations inflicted by a user.

The MGC3130 Single-Zone Evaluation Kit “Sabrewing“ is designed for evaluation of Microchip’s MGC3130 3D Tracking and Gesture Controller core features which contains:

• Hand Position Tracking in three dimensions (x, y, z)
• Hand Gesture Recognition based on a stochastic Hidden Markov Model (HMM)
• Approach detection for power saving

Sabrewing Single-Zone Evaluation Board

The Sabrewing Evaluation Board features the MGC3130 reference circuit, an I2C to USB Bridge and built-in 7" single-zone frame electrodes.

The package contains:

• Sabrewing Evaluation Board
• USB Cable

DM160217 User Gude and Schematic

microchip.com