Bringing a new revolutionary design to switching devices and equipment. Introducing a user-friendly development environment to support manufacturing processes.

The 2nd generation capacitive touch solution to lower hurdles in capacitive touch sensor development.

People now interact with machines through human-machine interfaces (HMI). In this field, as the adoption of capacitive touch interfaces expands rapidly, the use of conventional mechanical keys with limited functions are effectively being replaced. Panels with user-friendly designs can be operated using actions such as finger touches and swipe motions. Capacitative touch technology allows even devices designed for complex and highly skilled operations to be controlled with intuitive finger movements.

As the capacitive touch operation scene expands, panel sensitivity and high-noise resistance have become key requirements in achieving accurate switching movements and sophisticated operational performance. There is also a demand for features involving environmental tolerance to water, dirt, or temperature variations. In addition to these requirements, development periods and costs are also hurdles that need to be considered and overcome.

We, Renesas Electronics Corp., are ready to offer revolutionary solutions to achieve breakthroughs in this field. Click on the video below to experience our advanced technologies and be amazed by the high-level functions and high performance of our capacitive touch panels.

Touch Key Evaluation System

Capacitive touch Evaluation System

Evaluations may be started immediately after purchase of our capacitive touch solution products.


Waterproof Function Demonstration Video

Waterproof Function Demonstration Video

Keys are detected well without malfunctions despite exposure to running water.


Restriction-Free Panel Materials Demonstration Video

Restriction-Free Panel Materials Demonstration Video

Wood, stone, cloth, and paper may be used as cover panels of capacitive touch sensors.


LED Lighting Demo

LED Lighting Demo

LED dimming remote control using Bluetooth® Low Energy and a touch panel that displays characters.


Touch + Motor Control Demo

Touch + Motor Control Demo

Wood, stone, cloth, and paper may be used as cover panels of capacitive touch sensors.


Touch + Motor Control Demo

3D Gesture Demo

3D gesture demo applies Renesas' capacitive touch solution to realize an HMI that detects gesture motions (up and down, left and right, and forward and back) of a hand in three-dimensional space.


Development environment made easy with the Capacitive Touch Evaluation System

RX 231 HMI Solution Kit


This is an HMI (Human Machine Interface) Solution Kit mounted with an LCD segment display circuit, sound reproducing circuit, capacitive touch circuit, etc.
It can facilitate the development and evaluation of HMI and USB-applied products such as electric home appliances and healthcare products with built-in communication functions.



RX 130 Capacitive Touch Evaluation System


The RX 130 Capacitive Touch Evaluation System is designed for easy evaluation of capacitive touch solutions offered by Renesas.
As the board and software are included in the kit, evaluation may be conducted immediately after purchase.



Capacitive Touch Development Tool: QE for Capacitive Touch


QE for Capacitive Touch makes it easy to adjust the sensitivity of the touch buttons that are necessary for embedded system development that uses capacitive touch technology, shortening time to market. This tool supports the RX Family of microcontrollers.


Product Functions & Features

- Easily incorporate touch button drivers into a program via a graphical user interface (GUI)
- Easily adjust touch buttons in sequence using workflows
- Graphical display of touch interface configuration enables easy visualization
- Even a large number of touch buttons can be automatically tuned quickly, improving development efficiency
- Apply program modifications with the push of a single button
- Monitoring function makes it easy to check and fine tune touch button operation
- e2 studio integrated development environment integration* allows all work to be done from e2 studio


*QE for Capacitive Touch is a plug-in for e2 studio. The plug-in must be downloaded from the website and installed.


Main/Sensor Tuner ViewMain/Sensor Tuner View

Board Monitor ViewBoard Monitor View

Status Chart ViewStatus Chart View



Workbench6 (See Note*) allows for easier sensitivity adjustments.

Easy adjustments with the wizard format
Simple operations using the intuitive user interface
Automatically adjusted source codes as outputs

(Note) Workbench6 is not included in the evaluation kit but may be downloaded directly from the website.


Latest Workbench6 Ver. specifications

Improve Usability
- First Step Guide
- Tuning Window
- Sample project temperate

Improve noise immunity & tuning ability
- New noise immunity solution Dual sampling frequencies
- Support Manual sampling frequency
- Fixed RX231/230 MCU to MCU variation issue

- Fixed RX231/230 minor issue (TU TN-RX*A169A)


N.B. To download Workbench 6, please complete the user registration process on My Renesas.



Next-Generation HMI Solution

Touch-Free User Interface Reference Design

The 3D gesture demo applies Renesas' capacitive touch solution to realize an HMI that detects gesture motions (up and down, left and right, and forward and back) of a hand in three-dimensional space. Standard version (160 mm sq.) and small version (80 mm sq.) are available.

Touch + Motor Control Demo

Partner Introductions

Sales and development of glass capacitive touch switch modules

Noritake Itron corp.

TEL: 81-3-6205-4424


Evaluation board developer and computer programmer supplier

Hokuto Denshi Co., Ltd.

TEL: 81-11-640-8800


Touch module supplier

Yokoyama Shokai Co., Ltd.

TEL: 81-76-267-5624


Sales and development of transparent electrodes for capacitive switches

Toyo Label Co., Ltd.

TEL: 81-75-314-2117


Developer of intelligent capacitive touch sensors with customized functions and pricing

Takaya Corporation

TEL: 81-866-62-2015


RX Capacitive Touch Microcontrollers Product Lineup

Touch Sensing Principles and Main Features of Renesas Capacitive Touch Technology


Touch Sensing Principles and Renesas Touch Key Main Features

High Touch Sensitivity & High Noise Immunity

Successfully achieved the following:

  • 1. Touch sensing through a 10mm thick acrylic panel and a wood panel
  • 2. 30 cm proximity sensing
  • 3. Noise resistance test in accordance to IEC 61000-4-3/4-6 level 3 standards


Supports both "Self Capacitance" and "Mutual Capacitance" methods

Applicable to water-resistant products (Mutual Capacitance Method)


Easy development

Development tool for automatic sensitivity adjustments