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TIDA-00494
Touch Through Glass with Sharp ® LCD Reference Design
TIDA-00494
Overview
Human machine interface (HMI) is an essential part of process plants because it is one of the major ways through which humans and machines interact. TIDA-00494 offers an HMI design for harsh and hazardous area applications. In process plants, operators are required to interact with keypads for programming functions, encapsulated in explosive proof screw-on metallic enclosures with thick glass windows for local readouts through a liquid-crystal display (LCD).
This reference design uses MSP430™ microcontrollers (MCUs) with TI CapTIvate™ technology which allows the operator to interact with the keypad without needing to open the enclosure, saving time by avoiding work permit or plant shutdown. The operator can read results from a LCD and get notified with a light-emitting diode (LED) with only one integrated circuit (IC).
Features
- Single and multistep button touch
- Four robust buttons option implemented
- Finger detection through 10-mm thick glass
- Four LEDs and ultra-low power LCD as feedback
- Work with gloves and in harsh environment(water, oil, dust and more)
- Temperature range: -40°C to 85°C
Industrial
- Barcode reader
- Building security gateway
- Capacitive Level Transmitter
- Capacitive pressure transmitter
- Coriolis Flow Transmitter
- Differential Pressure Flow Transmitter
- Electromagnetic (MID) flow transmitter
- Hydrometric Pressure Level Transmitter
- Impeller / Turbine Flow Transmitter
- Inductive & capacitive position sensor
- Intrusion HMI panel
- Intrusion control panel
- LVDT Position Sensor
- LVDT pressure transmitter
- Machine vision camera
- Optical ToF continuous wave position sensor
- Optical ToF pulse position sensor
- Proximity switch
- Radar / microwave level transmitter
- Resistive pressure transmitter
- Silicon pressure transmitter
- Stand-alone remote IO
- Temperature transmitter
- Thermal Mass Flow Transmitter
- Ultrasonic flow transmitter
- Ultrasonic level transmitter
- Ultrasonic position sensor
- Vision sensors
- Vortex flow transmitter
- Wired smart door access control
- Wireless smart door access control
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.
TIDUBZ4B.PDF (4631 K)
Reference design overview and verified performance test data
TIDRMG4.PDF (327 K)
Detailed schematic diagram for design layout and components
TIDRMG5.PDF (70 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRMG6.PDF (179 K)
Detailed overview of design layout for component placement
TIDRMG8.ZIP (537 K)
Files used for 3D models or 2D drawings of IC components
TIDCCC3.ZIP (255 K)
Design file that contains information on physical board layer of design PCB
TIDRMG7.PDF (709 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
MSP430 microcontrollers
MSP430FR2633 — Capacitive Touch MCU with 16 touch IO (64 sensors), 16KB FRAM, 4KB SRAM, 19 IO, 10-bit ADC
Data sheet: PDF | HTMLStart development
Technical documentation
= Top documentation selected by TI
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Touch Through Glass With Sharp® LCD Design Guide (Rev. B) | May 29, 2019 | |
| Technical article | Selecting an airtight approach to water and dust proof buttons | PDF | HTML | Jul. 19, 2018 | |
| Technical article | Engineering magic: Touch through thick glass with LEDs and LCD | PDF | HTML | Aug. 18, 2016 |
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