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...
Capacitive Sensor Application Reference Design
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Overview
Description
Water Level Measurement Reference Design
This reference design measures the water level with a one-channel self-capacitance electrode and a one-channel shield electrode using a Renesas capacitive touch key solution. Electrodes and liquid tanks need to be GND shielded with conductors, but the linear values can be measured with one channel of self-capacitance electrodes.
Features
- This is based on a Renesas capacitive touch key solution with high sensitivity and high noise immunity
- High-performance, low-power microcontroller and touch IP achieve product system control and capacitive sensor detection
- This can also be mixed with conventional touch keys (water level measurement + touch button)
Problems with Conventional Technology (Float Type, Weight Sensor) Are Solved by the Renesas Capacitive Sensor Application Reference Design
Image
Hardware Information
| Reference Design | Application Notes | Gerber Data |
|---|---|---|
| Water Level Measurement Demo Set | RX130 Group Capacitive Water Level Measurement Demo Set Rev.1.00 (PDF | English, 日本語) | Liquid Level Design Package (ZIP | English, 日本語) |
Software Configuration
| RX Firmware | Contents | Code Size |
|---|---|---|
| RX Family Capacitive Liquid Level Indicator Demo System Sample Software - Sample Code (ZIP | English, 日本語) | Sample Program | ROM: 55,621 bytes RAM: 8,966 bytes |
| PC Software | Contents | Code Size |
|---|---|---|
| RX Family Capacitive Water Level Measurement Demo Level Monitor V1.00.00 - Software (ZIP) Various measurements that are detected by the target board can be monitored | Executable EXE file | - |
Applications
Documentation
= Featured Documentation
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| Type | Title | Date |
| Application Note | PDF 598 KB 日本語 | |
| Manual - Software | PDF 481 KB 日本語 | |
| Application Note | PDF 909 KB 日本語 | |
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Design & Development
Sample Code
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Lab on the Cloud
Lab on the Cloud
Use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
This reference design solution shows water level measurement using a capacitive touch electrode and the capacitive touch sensor unit feature of the RX130 MCU.
Videos & Training
Water level measurement demo
Video List