Overview
Description
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 board
- Self-capacitance evaluation board Built-in basics for capacitive touch: switches, slider, and wheel
- Mutual-capacitance matrix keys + self-capacitance proximity sensor evaluation board Carry out a variety of applications that use self-capacitance and mutual-capacitance at the same time
- USB cable
- Quick start guide
PC System Requirements
- IBM PC/AT or compatible PC (USB 2.0 interface necessary)1
- Processor: 1 GHz or more (hyperthreading and multi-core CPU support)
- Memory: 2 GB or more is recommended, minimum requirement is 1 GB (2 GB or more for 64-bit Windows 7)2
- Free space on hard disk: 600 MB or more
- Display: 1024 × 768 resolution or more, 65,536 colors or more
- I/O: CD-ROM drive
- Microsoft Windows XP / Windows 7 2
- Other software requirements in addition to Windows OS
- .NET Framework 3.5 SP1 + language pack
- Visual C++ Redistributable for Visual Studio 2012 Update 4(32bit)
- Internet Explorer 6.0 or later
Notes:
1. IBM and PC/AT are registered trademarks of International Business Machines Corporation of the U.S.
2. Windows® is a registered trademark of Microsoft Corporation of the U.S.
Features
- Evaluating various touch functions (button, slider, wheel, matrix key, proximity sensor)
- Simple prototyping
- Use as a reference when designing boards or software
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Manual - Development Tools | PDF 1.19 MB 日本語 | |
| PCB Design Files | RTK0EG0003S02001BJ - Design Package Rev.1.00
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| 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.
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| 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.
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| 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.
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| Application Note |
PDF
1.33 MB
日本語
AI-generated Summary:
The CTSU module enables capacitive touch measurements across various RX Family MCUs, supporting multiple CTSU peripheral versions with distinct functions. It facilitates touch sensing through software or external triggers, provides sensor CCO correction for accurate readings, and includes initial offset adjustment to compensate parasitic capacitance. The module supports multi-frequency measurements to reduce noise and offers advanced features such as shield functions, diagnosis, and automatic corrections. APIs allow control over measurement start, data retrieval, and calibration. The document details measurement modes, timing, and integration with firmware, enabling precise capacitive touch applications in embedded systems.
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| Application Note |
PDF
821 KB
日本語
AI-generated Summary:
The QE Touch module provides capacitive touch detection using the CTSU hardware on RX family MCUs. It supports button, slider, and wheel touch interfaces with configurable thresholds, hysteresis, and debouncing to prevent chattering and adapt to environmental changes. The module offers measurement processing modes, including majority judgment for reliable touch state detection. It integrates with QE tools for configuration, tuning via UART, and monitoring. Periodic capacitance measurements determine touch states, with drift correction to maintain baseline accuracy. The module supports multiple RX groups and requires periodic scanning and data retrieval calls for operation.
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| 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.
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| 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.
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| Application Note |
PDF
1.50 MB
日本語
AI-generated Summary:
Capacitive touch sensors measure capacitance changes caused by finger contact using a sensor drive pulse and current measurement. Ripple noise from the power supply or peripheral circuits distorts these measurements by adding noise currents, causing inaccurate touch detection. To ensure high accuracy and reliability, power supply design must minimize ripple noise. The document explains measurement principles, ripple noise effects, and countermeasures including power supply circuit selection, switching circuits, board layout, and touch parameter tuning. It covers RX, RL78, and RA family MCUs embedding CTSU1 and CTSU2 types of capacitive touch sensing units.
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| Application Note | PDF 959 KB 日本語 | |
| 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.
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| 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.
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| Manual - Development Tools | PDF 999 KB 日本語 | |
| Manual - Development Tools | PDF 1.02 MB 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.
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17 items
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Design & Development
Software & Tools
Software & Tools
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Software type
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Company
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| QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
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Solution Toolkit | Renesas |
| e² studio - Information for the RX Family Eclipse-based Renesas integrated development environment (IDE).
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IDE and Coding Tool | Renesas |
| C/C++ Compiler Package for RX Family [CC-RX] C/C++ Compiler Package for RX Family [IDE: CS+, e² studio, High-performance Embedded Workshop]
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Compiler/Assembler | Renesas |
3 items
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Sample Code
Sample Code
Filters
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| Type | Title | Date Date |
| Sample Code | RX Family QE CTSU Module Using Firmware Integration Technology Rev.3.30 - Sample Code
Application:
Human Machine Interface (HMI)
Function:
HMI
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| Sample Code | RX Family QE Touch Module Using Firmware Integration Technology Rev.3.30 - Sample Code
Application:
Human Machine Interface (HMI)
Function:
HMI
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| 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
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| 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
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4 items
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Product Options
| Part Number | Status | Stock | Budgetary Price (USD) | Sampleable |
|---|---|---|---|---|
| RTK0EG0003S02001BJ | Active | In Stock | 1u | $200 | N/A |
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