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.


  • RX140 CPU board
  • Touch application board
    • Self-capacitance evaluation board built-in basics for capacitive touch: switches, slider and wheel


The following items are available for download.


  • 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

Design & Development

Software & Tools

Software & Tools

C/C++ Compiler Package for RX Family [CC-RX]C/C++ Compiler Package for RX Family [IDE: CS+, e² studio, High-performance Embedded Workshop] Compiler/Assembler Renesas
E2 emulator Lite [RTE0T0002LKCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX] Emulator Renesas
E2 emulator [RTE0T00020KCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Emulator Renesas
QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch SensorsIn developing embedded system using the capacitive touch sensor of RA family and RX family 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"] Downloads: Solution Toolkit Renesas

Sample Code

Sample Code

Title Type Date
[Software=RX Driver Package|v1.36],[Toolchains=CC-RX|v3.04.00]
ZIP11.59 MB日本語
Related Files:
Application: Consumer Electronics
Compiler: CC-RX
Function: Evaluation Kit
IDE: e2 studio
Sample Code
[Software=QE CTSU module(FIT)|v2.10],[Software=QE TOUCH moduleo(FIT)|v2.10],[Toolchains=CC-RX|v3.04.00]
ZIP16.93 MB日本語
Related Files:
Application: Power and Energy
Compiler: CC-RX
Function: HMI
IDE: e2 studio
Sample Code
ZIP11.39 MB
Related Files:
Sample Code

Videos & Training

Getting Started with QE for Capacitive Touch

For the development of embedded systems that are work with capacitive touch sensors, this tool simplifies the initial settings of the touch user interface and the tuning of the sensitivity, thus shortening developing times.