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3D Gesture Reference Design

This 3D gesture reference design is a solution that can detect the position (x, y, and z coordinates) of a hand in space using Renesas' capacitive touch solution. The position of a hand up to 200 millimeters above a panel surface is converted to x, y, and z coordinates. Moreover, since sensing of coordinate data can be carried out at high speed, gestures (up and down, right and left, and front and behind) and simple pattern recognition can be used to operate a device.

Features

Based on Renesas' high sensitivity, noise-tolerant capacitive touch solution
  • Recognize the position of a hand up to 200 millimeters above a sensor
  • Up to 1-mm accuracy
High noise tolerance and works with shielding
  • Sensing can be carried out with any nonconducting material - thus can be embedded inside a wall, etc.
  • Support for IEC 61000 4-3 and IEC 61000 4-6 Level 3 class B*
  • *class B: No false detection when no object nearby in noisy environment.
Applicable to a variety of products
  • Realize system control and gesture operation for your product using a high-performance, low power 32-bit microcontroller and touch IP
  • Also possible to use gestures in combination with touch buttons

Can gesture recognition be used with infrared (pyroelectric sensor) or sound wave devices, or cameras?

Suggested no touch interfaces

Hardware configuration

Software configuration

RX firmware Contents Code size
Standard version (160 mm) RX231
  • Gesture recognition binary code
  • Coordinate detection middleware
  • Touch API
  • ROM : 34.2k
  • RAM : 5.8k 
Small version (80 mm) RX130
  • Gesture recognition binary code
  • Coordinate detection middleware
  • Touch API
  • ROM : 27.4k
  • RAM : 4.8k

* Gesture recognition, coordinate detection middleware is the same except electrode placement, USB presence / absence etc.

 

PC software

Contents

Code size

3D Gesture Demo Set Evaluation Tool
Three-dimensional coordinates, gesture motion, electrode sensitivity etc. can be evaluated

Executable EXE file

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Target Devices

You can filter the sample codes and application notes that are displayed using the below filters.

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