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Overview

Description

The touchless button reference design can detect the approach of fingers and hands without physical contact using Renesas’ capacitive touch solution. The electrode detects the proximity of the finger via self-capacitance and turns on the LED. The demo solution is compatible with all types of Renesas capacitive touch CPU boards.

Learn more about Renesas' Touchless Button Solution

Touchless Button Electrode Boards

Features

  • Based on Renesas' high sensitivity, noise-tolerant capacitive touch solution
  • Detect the approach of a finger up to 15mm above the electrode
  • Sensing can be carried out with any non-conducting material like glass or paper
  • Support for IEC 61000 4-3 Level 3 Class B*
  • Applicable to various applications such as white goods and public facility
  • Realize system control and touchless operation for your product using a high-performance, low power 32-bit microcontroller (MCU) and touch IP
  • Possible to use touchless control combined with other capacitive applications (water level measurement + touchless button)

*Class B: No false detection when there is no object nearby in a noisy environment.

Renesas Touchless Button Reference Design Advantage

The Renesas Touchless Button Reference Design solves the problems of conventional technologies (infrared sensor, ultrasonic, etc.)

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Renesas Touchless Button Reference Design solves the problems of conventional technologies (infrared sensor, Ultrasonic, etc.)

Why Use the Touchless Button Reference Design

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Suggested Touchless button reference design

Hardware Information

Reference DesignApplication NotesGerber Data
Touchless button demo solutionRA2L1 Group Touchless Button Demo Solution (Hardware) (PDF | English, 日本語)-
Touchless Button Electrode BoardCapacitive Sensor Microcontrollers Touchless Button Electrode Board Rev.1.00 (PDF | English, 日本語)-

Software Configuration

FirmwareContentsCode Size
RA2L1 Group Touchless Button Electrode Board Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:20024 bytes   RAM:2816 bytes
RA2L1 Group Touchless Button Demo Solution Sample Software Rev.1.01 - Sample Code (ZIP | English, 日本語)Sample ProjectROM:16644 bytes   RAM:2576 bytes
RA6M2 Group Touchless Button Demo Solution Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:13428 bytes   RAM:2588 bytes
RX130 Group Touchless Button Electrode Board Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:36094 bytes   RAM:4963 bytes
RX130 Group Touchless Button Demo Solution Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:19504 bytes   RAM:4721 bytes
RL78/G23 Group Touchless Button Demo Solution Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:12094 bytes   RAM:918 bytes
RL78/G23 Group Touchless Button Electrode Board Sample Software Rev.1.00 - Sample Code (ZIP)Sample ProjectROM:14404 bytes   RAM:1184 bytes
RA6M2 Group Touchless Button Electrode Board Sample Software - Sample Code (ZIP)Sample ProjectROM:16500 bytes   RAM:2716 bytes

Applications

Documentation

Design & Development

Sample Code

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Videos & Training

Touchless Button Electrode Board