Overview
Description
QE for Capacitive Touch is a tool for assisting in the development of embedded systems that include the use of capacitive touch keys.
This tool simplifies the initial settings of the touch user interface and the tuning of the sensitivity.
This product is available free of charge.
Features
- The GUI makes it easy for even a beginner to develop touch user interfaces.
- Automatic tuning for touch sensor sensitivity
- Learn More
Release Information
| Product Name | Latest Ver. | Released | Target Device (Note1) | Details of upgrade | Download | Operating Environment |
|---|---|---|---|---|---|---|
| QE for Capacitive Touch | V4.3.0 | Mar 24, 2026 | RA Family RL78 Family RX Family Renesas SynergyTM | See Release Note | Download | e² studio plug-in(Note2)(Note3) Operating Environment |
Notes
- For details on supported MCUs, refer to the section Target Devices.
- We recommend using the e² studio installer provided for the RA Family for customers using RA Family. For details, see the GitHub page on the Flexible Software Package (FSP).
- For development of Renesas Synergy™, we recommend to install e² studio by platform installer included SSP(Synergy Software Package).
For details
Target Devices
Downloads
Featured
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Software & Tools - Software | QE for Capacitive Touch V4.3.0: Development Assistance Tool for Capacitive Touch Sensor
|
|
1 item
|
||
Documentation
Featured Documentation
Log in required to subscribe
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Release Note |
PDF
384 KB
日本語
QE for Capacitive Touch is an assistance tool for applications and operates under the e2 studio integrated development environment. In the development of an embedded system based on an RX family, RA family, RL78 family or Renesas Synergy MCU that incorporates the capacitive touch sensing unit, this product facilitates the easy initialization of touch interfaces and tuning of their sensitivity, thus reducing development times.
|
|
| Tool News - Release |
PDF
160 KB
日本語
The functionality of the CTSU2 Functional Safety Self Test Software has been improved with the upgrade of the CTSU module and QE for Capacitive Touch. Updating the following products is required to use this function.
|
|
| Application Note |
PDF
6.87 MB
日本語
Functional safety functions are becoming an important on system design as automatic electronic control systems continue to expand to a wide range of applications. This APN describes the software for capacitive touch sensor(CTSU) functional safety self test.
|
|
| Tool News - Release | PDF 176 KB 日本語 | |
| Application Note |
PDF
3.46 MB
日本語
, 简体中文
This application note describes parameter tuning methods using QE for Capacitive Touch for microcontrollers that incorporate a Capacitive Touch Sensing Unit (CTSU).
In addition to the default auto-tuning process, it provides an overview of the Advanced mode and adjustable CTSU parameters for optimizing touch performance.
|
|
| Application Note |
PDF
14.40 MB
日本語
, 简体中文
This application note provides the design principles and layout examples of touch electrodes for microcontrollers embedded with a Capacitive Touch Sensing Unit (CTSU). It outlines recommended design practices and considerations for both self‑capacitance and mutual‑capacitance methods, covering electrode geometry, routing, and shielding structures. In addition, it describes the application examples for each sensing method.
|
|
| Application Note |
PDF
2.82 MB
日本語
The CTSU2, the enhanced version of the Renesas Capacitive Touch Sensing Unit (CTSU), supports an active shield as one of its anti-noise countermeasures. This document describes the self-capacitance waterproof touch button demo software, which implements the active shield function.
|
|
| Application Note |
PDF
2.42 MB
日本語
, 简体中文
AI-generated Summary:
Capacitive touch sensor microcontrollers utilize Renesas' Capacitive Touch Sensing Unit (CTSU) technology embedded in RX, RA, RL78 families, and Renesas Synergy™. The document explains capacitance detection principles, including self-capacitance and mutual-capacitance methods, and details the evolution from first-generation sensors to advanced CTSU2. It covers MCU lineups, hardware design guidelines, software configuration, tuning procedures, development environments, and evaluation kits to support capacitive touch product development. The CTSU converts capacitance changes into measurable signals, applying filtering and threshold judgment to detect touch inputs accurately.
|
|
| Flyer | PDF 752 KB 日本語 , 简体中文 | |
| Tool News - Release |
PDF
155 KB
日本語
This is the Tool News announcing the revision upgrade to QE for Capacitive Touch V4.2.0, Development Assistance Tool for Capacitive Touch Sensors.
QE for Capacitive Touch is a tool for assisting in the development of embedded systems that include the use of capacitive touch keys.
This tool simplifies the initial settings of the touch user interface and the tuning of the sensitivity.
The main revisions are improvements to the sensor drive pulse frequency determined by automatic tuning (CTSU2) and support for the new device "RA0L1 Group, RL78/F22, RL78/F25, and RL78/L23".
|
|
| Release Note |
PDF
384 KB
日本語
QE for Capacitive Touch is an assistance tool for applications and operates under the e2 studio integrated development environment. In the development of an embedded system based on an RX family, RA family,
RL78 family or Renesas Synergy MCU that incorporates the capacitive touch sensing unit, this product facilitates the easy initialization of touch interfaces and tuning of their sensitivity, thus reducing development times.
|
|
| Application Note |
PDF
853 KB
日本語
This document describes the contents of the sample code for the RL78/F22 Capacitive Touch Evaluation System.
|
|
| Application Note | PDF 957 KB 日本語 | |
| Application Note | PDF 1.34 MB 日本語 | |
| Application Note | PDF 844 KB 日本語 | |
| Application Note | PDF 4.99 MB 日本語 | |
| Application Note | PDF 948 KB 日本語 | |
| Application Note | PDF 1.33 MB 日本語 | |
| Application Note | PDF 4.54 MB 日本語 | |
| Application Note |
PDF
8.65 MB
日本語
The Capacitive Touch Evaluation System for the RL78/G23 supports development with CS+, the standalone version of the Smart Configurator, and the standalone version of QE for Capacitive Touch. The standalone QE for Capacitive Touch enables flexible development independent of the device or integrated development environment (IDE). This application note describes the steps for developing capacitive touch applications using the Capacitive Touch Evaluation System.
|
|
| Tool News - Note | PDF 153 KB 日本語 | |
| Application Note |
PDF
5.29 MB
日本語
AI-generated Summary:
The document explains how to develop capacitive touch applications using the RL78/G22 fast prototyping board and the standalone version of QE for Capacitive Touch. It details creating projects with the Smart Configurator, tuning touch interfaces, and monitoring their operation. The development environment includes CS+ IDE, Smart Configurator, and QE tools. It supports RL78 family devices with capacitive sensing units and covers hardware and software setup, touch interface configuration, and sample application development. The document also provides detailed procedures for hardware timer use and code generation.
|
|
| Application Note | PDF 959 KB 日本語 | |
| Tool News - Release | PDF 144 KB 日本語 | |
| Release Note | PDF 440 KB 日本語 | |
| Application Note |
PDF
953 KB
日本語
AI-generated Summary:
The RA4L1 Capacitive Touch Evaluation System example project demonstrates capacitive touch functionality using RA4L1 MCU. It includes sample software integrating FSP components, QE-generated capacitive touch configurations, and LED control applications. The software performs LED tests on startup and controls LEDs based on touch inputs from buttons, sliders, and wheels. It supports serial monitoring and tuning via UART and uses peripherals such as CTSU for touch measurement and AGT for LED control. The project operates at 80MHz with a 5V supply and is developed using e2 studio and Arm GNU Toolchain.
|
|
| Application Note |
PDF
14.17 MB
日本語
AI-generated Summary:
The guide explains methods to enhance noise immunity for capacitive touch sensor MCUs by addressing environmental noise issues that affect capacitance measurements. It covers noise types such as radiated RF, conducted noise, electrostatic discharge (ESD), and electrical fast transients (EFT), referencing IEC 61000-4 standards. The document details hardware and software countermeasures, including board design, multi-frequency measurement, filtering techniques, and protection circuits. It targets RX, RA, RL78 MCU families and Renesas Synergy devices embedding the CTSU module, providing practical design guidelines and evaluation results to ensure stable capacitive touch operation under noisy conditions.
|
|
| Application Note |
PDF
1.50 MB
日本語
AI-generated Summary:
The Smart Wakeup Solution implements low-power capacitive touch detection on RX261/RX260 MCUs by switching between standby and active modes. Standby mode uses multi-electrode measurement and automatic judgment to detect touch with minimal power consumption, measuring 11 channels simultaneously. When touch is detected, the system transitions to active mode, enabling full touch interface operation with buttons, sliders, and wheels. The system returns to standby after inactivity or specific touch conditions. The software runs on RX261 hardware at 24 MHz and 5 V, using e2 Studio and CC-RX compiler. It includes detailed software structure, power measurement methods, and capacitive touch tuning.
|
|
| Tool News - Release | PDF 147 KB 日本語 | |
| Release Note | PDF 387 KB 日本語 | |
| Tool News - Note | PDF 56 KB 日本語 | |
| Application Note |
PDF
2.18 MB
日本語
AI-generated Summary:
The software filters for capacitive touch systems include FIR, IIR, single-pole IIR, and median filters, each with detailed specifications, usage examples, and API descriptions. The document covers embedding these filters into existing projects for RA2L1, RX130, and RL78/G16 microcontroller groups, detailing operation conditions, software configuration, and filter parameter adjustments. It also provides development environment and hardware setup information to support capacitive touch evaluation systems.
|
|
| Application Note |
PDF
771 KB
日本語
AI-generated Summary:
The sample code enables capacitive touch functionality on the RL78/G23 microcontroller, supporting multiple electrodes including buttons, slider, wheel, and shield. It integrates LED control linked to touch inputs and CPU board push buttons. The system supports USB serial communication for serial monitoring and tuning at 115200bps. The software structure uses Smart Configurator-generated components and includes touch interface configuration, tuning, and sensitivity adjustment. Operation is confirmed on RL78/G23 at 32MHz with USB power. The package contains source files for touch control, LED functions, and peripheral configurations.
|
|
| Tool News - Release | PDF 148 KB 日本語 | |
| Release Note | PDF 1.12 MB 日本語 | |
| Application Note |
PDF
734 KB
日本語
AI-generated Summary:
The RL78/G22 Capacitive Touch Evaluation System sample code enables capacitive touch functionality for electrodes including buttons, sliders, wheels, and shields. It supports USB serial communication for serial monitoring and tuning via QE tools. LED control can be switched between capacitive touch inputs and CPU board push buttons by configuring SW6 and build options. The software integrates components generated by the Smart Configurator and includes touch configuration, LED control, and serial communication modules. Operation is confirmed on RL78/G22 MCU at 32MHz with USB power, using Renesas e2 studio and QE for Capacitive Touch development tools. The file structure includes source code for touch, LED control, and peripheral drivers.
|
|
| Release Note | PDF 974 KB 日本語 | |
| Application Note |
PDF
3.34 MB
日本語
AI-generated Summary:
Capacitive touch sensing integrates with Renesas RA microcontrollers using QE and FSP tools. The process includes creating a project with RA Smart Configurator, adding required modules, building a capacitive touch interface, tuning with QE for Capacitive Touch, and monitoring touch performance. Supported devices include RA6M2 and RA2L1 with CTSU/CTSU2 units. Development requires e2 studio IDE, GCC ARM compiler, QE for Capacitive Touch plug-in, and FSP middleware. The example demonstrates starting measurements with RM_TOUCH_ScanStart() and detecting touch via RM_TOUCH_DataGet().
|
|
| Application Note |
PDF
657 KB
日本語
AI-generated Summary:
The RA6M2 Capacitive Touch Evaluation System sample code enables capacitive touch functionality for multiple electrodes including buttons, slider, wheel, and shield. It integrates LED control responding to touch inputs and CPU board push buttons. The system supports USB serial communication for serial monitoring and tuning via QE tools. The software structure relies on FSP-generated components and includes detailed configuration files, constants, and peripheral usage. Operation is confirmed on RA6M2 MCU with specified hardware and software environments. The package includes source files for touch configuration, LED control, and main application logic.
|
|
| Quick Start Guide | PDF 1.21 MB 日本語 | |
| Application Note |
PDF
511 KB
日本語
AI-generated Summary:
The RA2L1 Capacitive Touch Evaluation System example project demonstrates capacitive touch functionality across multiple electrodes, including buttons, slider, wheel, and shield. It integrates LED control linked to touch inputs and CPU board push buttons, and supports USB serial communication for tuning and monitoring via QE tools. The software structure relies on FSP-generated components, with detailed configuration files and tuning logs included. Operation is confirmed on RA2L1 MCU at 48MHz using e2 studio and GCC compiler, facilitating development of capacitive touch applications with precise sensitivity adjustments.
|
|
| Quick Start Guide | PDF 994 KB 日本語 | |
| Application Note |
PDF
1.79 MB
日本語
AI-generated Summary:
This document explains how to develop capacitive touch applications using Renesas RX microcontrollers with QE and FIT modules. It guides through project creation in e² studio IDE, using Smart Configurator and QE for Capacitive Touch plug-in to create, tune, and monitor touch sensing. It lists required tools including RX140 evaluation board, Renesas compilers, emulators, and software modules. The document details high-level integration steps and provides an example application workflow for touch detection.
|
|
| Tool News - Release | PDF 154 KB 日本語 | |
| Tool News - Release | PDF 262 KB 日本語 | |
| Release Note | PDF 854 KB 日本語 | |
| Application Note |
PDF
2.64 MB
日本語
AI-generated Summary:
Steps for integrating capacitive touch sensors with Renesas RX microcontrollers using the standalone QE for Capacitive Touch tool and IAR Embedded Workbench for Renesas RX are detailed. It covers installation of required software including IAR EWRX, Smart Configurator, and QE tools, project creation with Smart Configurator, and configuring touch sensor parameters. The workflow includes generating source code, setting up the project environment, tuning touch sensors, and monitoring sensor performance. Essential URLs for downloading software and manuals are provided to support development and evaluation using the RSK-RX140 evaluation kit.
|
|
| Release Note | PDF 214 KB 日本語 | |
| Application Note |
PDF
4.53 MB
日本語
AI-generated Summary:
The guide explains how to develop 3D gesture recognition applications using AI with capacitive touch sensors via the QE for Capacitive Touch tool. It supports devices with capacitive touch IP in RX, RA, and RL78 families and Renesas Synergy™ platform. Key features include gesture data recording, AI model generation through automated deep learning, and real-time monitoring and tuning to improve recognition accuracy. The tool simplifies AI development without requiring specialized skills. The operating environment includes e2 studio IDE, GNU Arm toolchain, and specific evaluation boards and emulators. The guide covers setup, tuning, gesture recording, learning, coding, and monitoring workflows.
|
|
| Application Note | RX130 Capacitive Touch Evaluation System Sample Code Rev.2.00
AI-generated Summary:
The RX130 Capacitive Touch Evaluation System sample code uses components generated by the Smart Configurator, including various FIT modules such as r_bsp, r_byteq, r_cmt_rx, r_ctsu_qe, Config_PORT, and r_sci_rx. The software structure diagram illustrates the integration of application and hardware components. The file structure includes source and header files for touch configuration, sample applications, and LED/switch functions, organized into folders corresponding to different modules. Separate sample projects exist for self-capacitance and mutual-capacitance touch boards, each containing tuning logs and configuration files.
|
|
| Tool News - Note | PDF 153 KB 日本語 | |
| Quick Start Guide | PDF 2.49 MB 日本語 | |
| Release Note | PDF 170 KB 日本語 | |
| Tool News - Note | PDF 31 KB 日本語 | |
| Application Note |
PDF
1.92 MB
日本語
AI-generated Summary:
The document explains how to generate and transfer QE code for Capacitive Touch using e² studio and Keil® MDK on Renesas RA microcontrollers, specifically targeting the RA2L1 evaluation system. It details the setup of the development environment, including required IDE versions, toolchains, and configuration tools. Step-by-step instructions guide users through creating projects in e² studio, configuring Capacitive Touch, tuning, and migrating the code to Keil® MDK for execution. The workflow supports efficient development and debugging of capacitive touch applications on Renesas RA devices.
|
|
| Application Note |
PDF
2.06 MB
日本語
AI-generated Summary:
The document explains how to generate and transfer QE code for Capacitive Touch using e² studio and IAR Embedded Workbench for ARM with Renesas RA microcontrollers. It details steps for creating projects in e² studio, configuring capacitive touch, tuning, and migrating the code to IAR EWARM. The setup involves RA2L1 evaluation boards, specific IDE versions, toolchains, and configuration tools. It guides users through project creation, device selection, build settings, and integration of touch drivers to run capacitive touch applications efficiently.
|
|
| Tool News - Release | PDF 65 KB 日本語 | |
| Release Note | PDF 161 KB 日本語 | |
| Tool News - Note | PDF 47 KB 日本語 | |
| Release Note | PDF 161 KB 日本語 | |
| Tool News - Release | PDF 157 KB 日本語 | |
| Tool News - Release | PDF 104 KB 日本語 | |
| Release Note | PDF 146 KB 日本語 | |
| Tool News - Note | PDF 31 KB 日本語 | |
| Application Note |
PDF
1.36 MB
日本語
AI-generated Summary:
Capacitive touch sensing integration using Renesas Synergy MCUs involves creating a project with e2 studio and Synergy Smart Configurator, adding required modules, and using QE for Capacitive Touch plug-in for interface creation, tuning, and monitoring. The process includes starting measurements with scanStart() API, checking results, and detecting touches via dataGet() API. Development requires S3A7(CTSU) board, e2 studio IDE, GNU ARM compiler, QE for Capacitive Touch, and SSP drivers. The document guides through project creation, module addition, interface setup, tuning, and performance monitoring.
|
|
| Tool News - Release | PDF 153 KB 日本語 | |
| Release Note | PDF 172 KB 日本語 | |
| Release Note | PDF 138 KB 日本語 | |
| Tool News - Release | PDF 106 KB 日本語 | |
| Release Note | PDF 311 KB 日本語 | |
| Tool News - Notification | PDF 304 KB 日本語 | |
| Tool News - Release | PDF 105 KB 日本語 | |
| Tool News - Release | PDF 484 KB 日本語 | |
| Release Note | PDF 133 KB 日本語 | |
| Tool News - Release | PDF 864 KB 日本語 | |
| Tool News - Release | PDF 1.12 MB 日本語 | |
| Tool News - Release | PDF 735 KB 日本語 | |
|
77 items
|
||
Design & Development
Sample Code
Sample Code
Filters
|
||
|---|---|---|
| Type | Title | Date Date |
| Sample Code | RL78/F22 Capacitive Touch Evaluation System Sample Code Rev.1.00
[Toolchains=CC-RL|V1.15.01]
ZIP
7.52 MB
日本語
Application:
Automotive, Consumer Electronics
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
This document describes the contents of the sample code for the RL78/F22 Capacitive Touch Evaluation System.
|
|
| Sample Code | RL78/F25 Capacitive Touch Evaluation System Sample Code
[Toolchains=CC-RL|V1.15.00]
ZIP
7.69 MB
日本語
Application:
Appliances, Human Machine Interface (HMI)
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RL78/F25 Group Low power consumption Smart Wakeup Solution
[Toolchains=CC-RL|V1.15.00]
ZIP
5.93 MB
日本語
Application:
Appliances, Human Machine Interface (HMI)
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RA0L1 Group Capacitive Touch Evaluation System Example Project
[Software=RA Flexible Software Package|v6.10],[Toolchains=GNU Arm Embedded|13.2]
ZIP
2.97 MB
日本語
Application:
Appliances, HMI Capacitive Touch, Human Machine Interface (HMI)
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RL78/L23 Capacitive Touch Evaluation System Sample Code Rev.1.00
[Toolchains=CC-RL|V1.15.00]
ZIP
7.61 MB
日本語
Compiler:
CC-RL
IDE:
e2 studio
|
|
| Sample Code | RL78/L23 Low power consumption Smart Wakeup Solution Rev.1.00
[Toolchains=CC-RL|V1.15.00]
ZIP
8.75 MB
日本語
Application:
Human Machine Interface (HMI), Industrial
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RA4L1 Group Smart Wakeup Solution
[Software=RA Flexible Software Package|v5.9.0],[Toolchains=GNU Arm Embedded|13.2]
ZIP
7.41 MB
日本語
Application:
Appliances, Human Machine Interface (HMI)
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RL78 Family Using the standalone version of QE to Develop Capacitive Touch Applications Rev.2.00
[Toolchains=CC-RL|V1.15.01]
ZIP
27.34 MB
日本語
Application:
Human Machine Interface (HMI)
Compiler:
CC-RL
Function:
Application Example, HMI
IDE:
CS+ for CC
This is an example of a touch application developed using CS+ and the standalone version of QE for Capacitive Touch. Two types of projects are provided: a simple implementation example and an applied example, both of which can be immediately tested on the capacitive touch evaluation system. These can be used as reference materials to understand the development procedure in conjunction with the application note.
|
|
| Sample Code | RL78 Family Using the Standalone Version of QE to Develop Touch Applications for a Fast Prototyping Board Rev.2.00
[Toolchains=CC-RL|V1.15.00]
ZIP
23.20 MB
日本語
Application:
Consumer Electronics, Industrial
Compiler:
CC-RL
Function:
Application Example, HMI
IDE:
CS+ for CC
|
|
| Sample Code | RA4L1 Group Capacitive Touch Evaluation System Example Project - Sample Code
[Software=RA Flexible Software Package|v5.80],[Toolchains=GNU Arm Embedded|13.2]
ZIP
3.47 MB
日本語
Application:
Connected Home & Entertainment, Human Machine Interface (HMI)
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RX261/RX260 Group Smart Wakeup Solution
[Software=RX Driver Package|V1.44],[Toolchains=CC-RX|V3.06.00]
ZIP
19.95 MB
日本語
Application:
Human Machine Interface (HMI)
Compiler:
CC-RX
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | Capacitive Sensor MCU Capacitive Touch Software Filter Sample Program
[Software=RX Driver Package|V2.20;RA Flexible Software Package|v5.3.0],[Toolchains=CC-RL|V1.13.00;CC-RX|V3.06.00;GNU Arm Embedded|13.2.1.arm-13-7]
ZIP
16.10 MB
日本語
Application:
Consumer Electronics
Compiler:
CC-RL, CC-RX, GNU ARM Embedded
Function:
Application Example, HMI
IDE:
e2 studio
|
|
| Sample Code | RL78/G23 Capacitive Touch Evaluation System Sample Code Rev.3.00
[Toolchains=CC-RL|V1.13]
ZIP
6.43 MB
日本語
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RL78/G22 Capacitive Touch Evaluation System Sample Code Rev.2.00
[Toolchains=CC-RL|V1.13]
ZIP
6.43 MB
日本語
Compiler:
CC-RL
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RA6M2 Group Capacitive Touch Evaluation System Example Project
Application:
Consumer Electronics
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RA2L1 Group Capacitive Touch Evaluation System Example Project
[Software=RA Flexible Software Package|v4.6.0],[Toolchains=GNU Arm Embedded|10.3-2021.10]
ZIP
2.56 MB
日本語
Application:
Consumer Electronics
Compiler:
GNU Arm Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
|
|
| Sample Code | RX130 Capacitive Touch Evaluation System Sample Code Rev.2.00
[Software=RX Driver Package|v1.34],[Toolchains=CC-RX|v3.04.00]
ZIP
21.92 MB
日本語
Application:
Consumer Electronics
Compiler:
CC-RX
Function:
Evaluation Kit
IDE:
e2 studio
|
|
17 items
|
||
Related Boards & Kits
Evaluation
RSSK-RA0L1
Active
Capacitive Touch Evaluation System for RA0L1
The RA0L1 capacitive touch evaluation system (RSSK-RA0L1) makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
RSSK-RA0L1 has a built-in SEGGER J-Link™ emulator circuit so you... Read More
Evaluation
RSSK-RA2L1
Active
Capacitive Touch Evaluation System for RA2L1
The RA2L1 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RA2L1 CPU board
- Touch application board
- Self-capacitance... Read More
Evaluation
RSSK-RA4L1
Active
Capacitive Touch Evaluation System for RA4L1
The RA4L1 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Note: RA4L1 supports the Secure Factory Programming function. However, the... Read More
Evaluation
RSSK-RA6M2
Active
Capacitive Touch Evaluation System for RA6M2
The RA6M2 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Evaluation
RSSK-RL78F22
Active
Capacitive Touch Evaluation System for RL78/F22
The RL78/F22 capacitive touch evaluation system (RSSK-RL78F22) makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit. This kit can evaluate self-capacitive button and slider... Read More
Evaluation
RSSK-RL78F25
Active
Capacitive Touch Evaluation System for RL78/F25
The RL78/F25 capacitive touch evaluation system (RSSK-RL78F25) makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Evaluation
RSSK-RL78G16
Active
Capacitive Touch Evaluation System for RL78/G16
The RL78/G16 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RL78/G16 CPU board
- Touch application board
- Self-capacitance...
Evaluation
RSSK-RL78G22
Active
Capacitive Touch Evaluation System for RL78/G22
The RL78/G22 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RL78/G22 CPU board
- Touch application...
Evaluation
RSSK-RL78G23
Active
Capacitive Touch Evaluation System for RL78/G23
The RL78/G23 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RL78/G23 CPU board
- Touch application...
Evaluation
RSSK-RL78L23
Active
Capacitive Touch Evaluation System for RL78/L23
The RL78/L23 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
This evaluation system has an optional circuit enabling the connection of... Read More
Evaluation
RSSK-RX130
Active
Capacitive Touch Evaluation System for RX130
The RX130 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RX130 CPU board
- Touch application...
Evaluation
RSSK-RX140
Active
Capacitive Touch Evaluation System for RX140
The RX140 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RX140 CPU board
- Touch application board
- Self-capacitance...
Evaluation
RSSK-RX261
Active
Capacitive Touch Evaluation System for RX261
The RX261 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RX261 CPU board
- Touch application board
- Self-capacitance...
Evaluation
RSSK-RX671
Active
Capacitive Touch Evaluation System for RX671
The RX671 capacitive touch evaluation system makes it easy for users to evaluate touch solutions offered by Renesas. You can start evaluating immediately out of the box using the board and software included in each kit.
Configuration
- RX671 CPU board
- Touch application board
- Self-capacitance...
Explore
Videos & Training
QE for Capacitive Touch from Renesas enables the development of touch sensors by simply following a guide on a GUI, thus contributing to shortening the development period for touch sensor functions that take advantage of the performance of the Capacitive Sensing Unit (CTSU2).
Related Resources
- Capacitive Touch Sensor Solutions
- QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors
- Getting Started with QE for Capacitive Touch for RA [this video]
- QE for Capacitive Touch Tutorial: Step 1 Configuration for RA
- QE for Capacitive Touch Tutorial: Step 2 Tuning for RA
- QE for Capacitive Touch Tutorial: Step 3 Monitoring for RA
News & Blog Posts
Additional Details
Features
The GUI makes it easy for even a beginner to develop touch user interfaces.
Simple GUI operations allow even a beginner to create the configuration for use with a touch user interface, monitor the state of input through the touch sensors, and adjust parameters.
Furthermore, since this tool can adjust tuning parameters and reflect the results through display in real-time, it is very useful for finding the appropriate parameters in various situations, such as in the presence of much static electricity or in cases of use with wet hands.
Image
Image
Automatic tuning for touch sensor sensitivity
This tool enables automatic tuning for the sensitivity of the capacitive touch sensors. You can complete basic tuning within a few minutes by following the instructions in the pop-up messages.
Image
3D gesture recognition
You can develop a gesture application that reacts "by anyone's hand" without any specialized skills just by actually performing the gesture that you want AI to remember on the capacitance sensor.
Image
Supported Driver and Middleware
| Device | Driver | Version |
|---|---|---|
| RA Family | CSTU (Capacitive Touch Sensing Unit) Driver Flexible Software Package (FSP) Component for RA Family Component name: r_ctsu | V6.4.0 |
| Touch Middleware Flexible Software Package (FSP) Component for RA Family Component name: rm_touch | V6.4.0 | |
| RX Family | Driver for capacitive touch sensor unit RX Family QE CTSU Module Using Firmware Integration Technology Module name: r_ctsu_qe | V3.30 |
| Middleware for touch sensors RX Family QE Touch Module Using Firmware Integration Technology Module name: rm_touch_qe | V3.30 | |
| RL78 Family | Driver for capacitive touch sensor unit RL78 Family QE CTSU Module Software Integration System Module name: r_ctsu | V2.30 |
| Middleware for touch sensors RL78 Family QE Touch Module Software Integration System Module name: rm_touch | V2.30 | |
| Renesas Synergy | CTSU (Capacitive Touch Sensing Unit) Driver Synergy Software Package (SSP) Component for Renesas Synergy Component name: r_ctsuv2 | V2.6.0 |
| Capacitive Touch Framework Synergy Software Package (SSP) Component for Renesas Synergy Component name: sf_touch_ctsuv2 | V2.6.0 |
See here for details on adding and setting middleware related to QE for Capacitive Touch
The confirmed debugging tools
| Device | E2 emulator | E2 emulator Lite | SEGGER J-Link |
|---|---|---|---|
| RA Family | ✔ | ✔ | ✔ |
| RX Family | ✔ | ✔ | ✔ |
| RL78 Family | ✔ | ✔ | |
| Renesas Synergy | ✔ |
Support
Support Communities
- New Release QE for Capacitive Touch
... Synergy device families to enable capacitive touch on those microcontrollers. Information on the new tool can be found here: QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors | Renesas Please visit the Renesas weblink above to get all the latest information on the new QE for Capacitive Touch ...
Sep 22, 2021 - RL78/G16 Capacitive Touch example code
Hi, Is there have any example code for the capacitive touch? I have try to run the CTSU examples function but it is not working well
Feb 14, 2024 - RA2E1 RA Smart Configurator CTSU HAL Layer
... the configuration side. 1 - For CTSU implementation, I basically add a CTSU driver from stacks. But on the configuration side, there's only an option for selecting the CTSU pins, I couldn't see any other configuration options such as touch threshold parameters, calibration parameters,etc. 2- On the software ...
Jun 3, 2021
Knowledge Base
- RA Family: The serial communication monitor that is provided by QE for Capacitive Touch, Development Assistance Tool for Capacitive Touch sensors, fails to start.
Last Updated: 02/17/2025 Question: I am trying to perform the serial communication monitor that is provided by QE for Capacitive Touch. I wrote a capacitive touch application for the RA MCU and executed it, but the error message "Failed to connect to the serial port." is ...
Feb 17, 2025 - An error occurs in e2 studio during project build. (E0520005: "qe_common.h" not found)
... 11 or earlier Please use the latest version of QE for Capacitive Touch as a development support tool for capacitive touch sensors.QE for Capacitive Touch can be downloaded from the following URL.QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors Suitable Products e² studioQE for Capacitive ...
Apr 11, 2024 - RL78 Family: Touch development with the RL78 microcontroller
... When using CS+, please also install Smart Configurator:https://www.renesas.com/software-tool/rl78-smart-configurator Click here to install QE for Capacitive Touch:https://www.renesas.com/software-tool/qe-capacitive-touch-development-assistance-tool-capacitive-touch-sensors#download
Aug 27, 2025
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
