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).
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Reference design overview and verified performance test data
Detailed overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Touch Through Glass With Sharp® LCD Design Guide (Rev. B) | May 29, 2019 | |
| White paper | Capacitive touch building security system equipment using MSP430™ MCUs (Rev. B) | Nov 8, 2018 | ||
| 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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