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Capacitive Touch Evaluation System for RX140

RSSK-RX140

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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 board built-in basics for capacitive touch: switches, slider and wheel

Features

  • Use to evaluate various touch functions (button, slider, wheel)
  • Simple prototyping
  • Use as a reference when designing boards or software
  • Easily adjust the sensitivity by using QE for Capacitive Touch
    • Easy operation with intuitive interface
    • Easy to develop touch interfaces even for beginners with GUI
    • Automatically output adjusted source code
  • RX140 MCU (R5F51406ADFN) based
  • Capacitive Touch Sensor (CTSU2SL) 36 channels available
  • Compliant with IEC 61000-4-3 and IEC 61000-4-6 Level 3

Applications

HMI Capacitive Touch
Capacitive Touch Evaluation System for RX140
RX140 Cap Touch CPU Board
Self-capacitance Button/Wheel/Slider Electrode Board
Capacitive Touch Evaluation System for RX140
RX140 Cap Touch CPU Board
Self-capacitance Button/Wheel/Slider Electrode Board

Products in the Design

3D illustration featuring top and bottom views of LQFP IC chip package with 64 lead count.
RX 32-Bit Performance/Efficiency MCUs
RX140 Active
RX100 Series' First RXv2 Core 32-bit Microcontrollers with Third-Generation Touch IP for Even Lower Power Consumption
Datasheet
ISL9007
High Current LDO with Low IQ and High PSRR

Sample & Buy

Capacitive Touch Evaluation System for RX140

RTK0EG0039S01001BJ

Active
1u | $152.94Budgetary Price

Add-on Hardware

Additional boards that work with this platform. Some may be required for full functionality or to evaluate specific features.
RA2L1 Capacitive Touch CPU Board

Capacitive Touch Proximity Touch Reference Design

PROXIMITY-TOUCH-CT-REF
Demonstrates touchless proximity detection using capacitive sensing. Enables evaluation of hygienic, contact-free user interface applications for consumer and home appliance designs.
Recommended Documents:
Touchless Button Design Files
Touchless Button Electrode Design Files
RA2L1 Group Touchless Button Demo Solution Hardware Manual
Angled view of the capacitive touch liquid level indicator reference design with two transparent tanks, connecting tubes, sensors, and a CPU board and control board.

Capacitive Touch Liquid Level Indicator Reference Design

LIQUID-LEVEL-CT-REF
Demonstrates liquid level measurement using capacitive touch sensing without mechanical parts. Designed to evaluate durable, low‑cost level detection solutions.
Recommended Documents:
Liquid Level Design Files
RX Family Capacitive Water Level Measurement Demo Level Monitor V1.00.00 Rev.1.00
Metal Touch Solution Reference Design Boards Connected - Top

Capacitive Touch Metal Overlay Reference Design

METAL-TOUCH-CT-REF
Explore capacitive touch through metal overlays using a reference design optimized for robust industrial and appliance HMIs.
Recommended Documents:
Metal Touch Solution Design Files
RX140 Group Metal Touch Sensor Example User's Guide

Videos & Training

The QE for Capacitive Touch tool simplifies the touch user interface's initial settings and the sensitivity tuning, thus shortening developing time.

Additional Videos

Resources

Support

Support Communities

  1. RX140 unexpected drop in touch reference value

    Hi All, I am currently encountering an issue. Sometimes, when I execute a Software Reset (indicated by the yellow line), the Reference Value drops unexpectedly. Based on my investigation, I noticed that the initial Reference Value seems to be taking the Count Value as its starting point. However, when I ...

    Mar 4, 2026
  2. RX140 Bootloader

    Hello,  I have my bootloader written at address 0xFFFE0000 and application at address 0xFFFE9000. Here is the linker section setting for the bootloader: For the application, the linker section setting is: The problem is that, I am not able to debug the application: Thank you.

    Jul 1, 2024
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