RENCapacitive Touch Evaluation System for RA2L1
Overview
The RTK0EG0022S01001BJ is a comprehensive development kit designed for evaluating the capacitive touch capabilities of the Renesas RA2L1 microcontroller. It utilizes the Second-Generation Capacitive Touch Sensing Unit (CTSU2L) to support high-sensitivity touch interfaces including buttons, sliders, and wheels. The board serves as a reference design for implementing noise-tolerant touch controls in moisture-prone or high-interference environments.
Why Choose This Part
This kit provides a dedicated CTSU2L peripheral that allows for touch sensing with minimal CPU overhead, preserving the 48MHz Cortex-M23 for application tasks. It supports high-voltage touch sensing up to 5V, which improves signal-to-noise ratios in challenging environments compared to standard 3.3V systems.
Applications
Getting Started
Engineers should use the Renesas e2 studio IDE along with the Flexible Software Package (FSP) to access the Capacitive Touch Software Library. The kit connects via Micro-B USB for power and debugging, allowing immediate use of the QE for Capacitive Touch tool to tune sensitivity and threshold parameters.
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