Overview
Description
Renesas' Metal Touch Overlay reference design applies capacitive touch technology using a Capacitive Touch Sensor Unit (CTSU) and a corresponding metal material overlay panel.
It is possible to assign multiple functions to a single button by determining the pressure applied from the amount of panel deflection as an added value.
Features
- Measure the change in capacitance caused by the deflection when pressing the button with a finger.
- Simultaneous detection of multiple button touches.
- Detection of three levels of touch intensity.
- User can adjust sensitivity and monitor changes in measured capacitance as a graph in real time by connecting with "QE for Capacitive Touch".
- Display the touched button number and provide feedback via a buzzer.
Applications
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Metal Capacitive Touch Panel with NFC for Elevator & HMI
Elevator control system with sleek capacitive metal touch, CAN FD reliability, and NFC security for a premium, safe, user‑friendly experience.
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Additional Applications
- Home appliances
- AV equipment
- Industrial equipment
Documentation
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| Type | Title | Date |
| PCB Design Files | Metal Touch Solution Design Files
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| Application Note |
PDF
2.62 MB
日本語
AI-generated Summary:
The capacitive touch sensor system uses a metal panel overlay to detect touch by measuring capacitance changes caused by panel deflection when pressed. It supports multi-level touch detection based on pressing strength, enabling operation even with non-conductive gloves and providing high resistance to water and stains. The system eliminates mechanical parts, enhancing reliability and durability. It includes hardware configurations such as CPU and touch electrode boards, software settings for touch detection, display control, and buzzer operation. The system operates in two modes: simple touch detection and three-level pressing strength detection, with visual and audio feedback. Design files include BOM, schematics, and Gerber files for PCB layout.
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| Other | Metal Touch Solution Declaration of Conformity for UKCA
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| Other | Metal Touch Solution Electromagnetic Environment
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| Other | Metal Touch Solution Declaration of Conformity for CE
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5 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 |
1 item
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Sample Code
Related Boards & Kits
Boards & Kits
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...
Product Options
| Part Number | Status | Stock | Sampleable |
|---|---|---|---|
| METAL-TOUCH-REF | Active | Out of Stock | N/A |
Videos & Training
We introduce a Metal Touch Solution that improves product design by using metal panels as touch buttons. This solution not only enhances the appearance of products but also enables a user interface that is beyond the capability of conventional capacitive touch, as it can detect the strength of button presses.
To learn more, visit the Metal Touch Solution page.
Related Resources
Additional Videos
Support
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