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TIDM-TOUCHWHEEL-LEDTRACKING

Touch Wheel and LED Tracking

Design files

TIDM-TOUCHWHEEL-LEDTRACKING

Design files

Overview

This solution implements a user interface with a capacitive touch wheel and LED tracking control. Using the MSP430G2955 microcontroller and capacitive touch wheel, users can design products that need volume, brightness, temperature adjustment with LED tracking for the touch postion.

Features
  • Single-chip solution for capacitive touch and LED control
  • Support for up to 24 channel LED drives with independent PWM outputs
  • LED breathing effect
  • LED tracking effect
  • Simple touch wheel design with three electrodes
  • Absolute position report with 8-bit resolution"
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Schematic — TIDM-TOUCHWHEEL-LEDTRACKING
TIDR811.PDF (171 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDM-TOUCHWHEEL-LEDTRACKING
TIDR812.PDF (67 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430G2955 — 16 MHz MCU with 56KB Flash, 2KB SRAM, 10-bit ADC, comparator, UART/SPI/I2C, timer

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TLV702 — 300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML

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