MartinFowler

64-Button Capacitive Touch Panel Reference Design Using TI Microcontrollers with CapTIvate Technology

TIDM-CAPTIVATE-64-BUTTON

Overview

TIDM-CAPTIVATE-64-BUTTON TI reference design demonstrates an ultra-low power touch panel with 64 buttons that can be controlled from a single MSP microcontroller (MCU) with CapTIvate™ technology. The design uses mutual capacitance technology to ensure that all 64 buttons are tightly packed and can be controlled with just 16 MCU pins. This touch panel easily connects to the CAPTIVATE-FR2633 MCU target module included in the MSP-CAPT-FR2633 MCU development kit.

characteristic

● Detect single and multiple touches
● Mutual capacitance technology can control 64 buttons with only 16 microcontroller pins
● Over 100 samples per second, typical response time of 15ms, and code size/response time optimizations
● 1.75µA average current per button through low-power optimization and 0.23µA per button through “wake on touch” mode
● Easy plug-and-play via CAPTIVATE-FR2633 target MCU module
● CapTIvate Design Center supports real-time sensor tuning using a host PC

Backlog Impt notice changes Backlog Impt notice changes end

Blockdiagram

Design Files

Documentation

64 Button Mutual Capacitance Touch Panel with CapTIvate™ Technology

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Update:2024-11-14 23:08:45

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