4-Wire Latching, USB/RS-232

One-Touch Resistive Controller

4-Wire Latching, USB/RS-232

This A D Metro high performance, low cost, resistive touch screen controller model supports 4-wire resistive touch sensors up to 24 inches in size using latching connectors. This controller is easily configured to report touch locations using either a USB HID or full voltage RS-232 interface.

A D Metro resistive touch controllers dynamically adapt to touch screen electrical characteristics such as sensitivity, contact resistance, and capacitance. The controllers deliver advanced touch response, accuracy and performance with up to 150 touch point reports per second of filtered coordinates, accurately tracking motion for applications such as signature capture.

This controller can easily be integrated into the wide variety of touch sensing applications that use USB HID-mouse or HID-digitizer device types. Most operating systems have full, built-in USB HID compatibility, so no driver needs to be installed for USB operation.

This controller can also interface over full voltage RS-232. Contact A D Metro for RS-232 driver support.

Part Details

Description

CR1T-06-4WL-01

Controller compatible with 4-wire latching resistive sensor, USB or RS-232 interface, one-touch. Does not include USB-A or RS-232 cable.

10-CARU-EXT

USB-A Controller Cable, 6 ft (about 2m)

10-CARS-EXT

RS-232 Controller Cable, 1.5 ft (about 0.5m)

Compatible Sensors

Any A D Metro 4-wire latching resistive sensor (except rare, specialty sensors which require a small adaptor cable). Refer to the Resistive Controller User Guide and sensor drawing, or contact A D Metro for verification.

Supporting Documents

Datasheet

Drawing

User Guide

Featured Resistive Controllers

Support

Should you have any questions regarding our products, please do not hesitate to get in touch.

How do resistive touch screen sensors work?

A resistive touch screen sensor is an analogue switch technology that is pressure activated. Two conductive coated layers (usually using Indium Tin Oxide [ITO]), facing each other, are separated by a layer of dielectric spacer dots. When pressure is applied to the top surface, the two layers come into contact and the controller locates the touch point. To determine the x and y coordinates, in 4- and 8-wire sensors a voltage gradient is applied to each layer in turn; and in 5-wire sensors the resistance is measured between the top layer and each of the four corners of the base layer.

For more information on popular touch screen technologies, please download our whitepaper.

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4-Wire Latching, USB/RS-232

One-Touch Resistive Controller