TIDA-00343: Low-Power Touch Through Glass Reference Design

Human Machine Interface (HMI) is an essential part of process plants since it is one of the major ways through which humans and machines interact. The TIDA-00343 reference design offers an HMI solution for harsh and hazardous area applications. In process plants, operators need to interact with an explosion-proof display/controller which is encapsulated in a screw-on metallic enclosure with a thick glass window for local read out and programming functions.

Thanks to the TIDA-00343 TI Design which uses MSP430™ microcontrollers (MCU) with CapTIvate™ technology the operator will be able to interact with the controller without the need of opening the enclosure saving time by avoiding work permit or plant shutdown.

Features

• Four Robust Buttons Option Implemented

• Variable Airgap between Buttons and Glass(1-2mm)

• Finger Detection through 10mm Thick Glass

• Work with Gloves and in Harsh Environment(Water, Oil, Dust, etc)

• Temperature Range: -40°C to 85°C

• Low Power(~10Hz Scan Rate): 240µA-avg