By ADMetro In
, Posted
two-touch resistive controller

Make Your Resistive Touch Screen Applications Work with Multi-Touch Functionality

As the demand for touch-based applications has soared high, the need for innovation has skyrocketed. To address this, advancements have been made to enhance the functionality of traditional touch sensors. One such pioneering technology gaining traction in the touchscreen industry is the two-touch resistive controller, engineered and patented by A D Metro – a renowned leader of innovative touch solutions.

This revolutionary two-touch resistive controller, compatible with 5-wire resistive touchscreens, pushes the limitations of single-touch functionality in standard resistive applications and enables multi-touch functionality in the pressure-activated resistive touchscreens. This cutting-edge touchscreen controller empowers developers to elevate the features of applications requiring two-touch capability with the reliability of resistive touch technology.

However, the two-touch feature does not alter the basic construction of 5-wire resistive touchscreens and keeps it intact. The touchscreen maintains a simple two-layer structure, with conductive coatings on both the top and bottom surfaces. Microscopic spacer dots, invisible to the human eye, separate these layers.

The bottom conductive layer features electrodes positioned at each corner, connected to the sensor’s flexible circuit tail. The top layer, in contrast, remains connected to a single wire to function as a voltage probe.

The controller facilitates the touch detection process. It alternates sending voltage across the bottom conductive layer’s electrodes in both horizontal and vertical directions. When a touch occurs, the top layer acts as a probe, transmitting voltage back to the controller along corresponding X and Y planes.

For applications demanding multi-touch functionality on resistive touchscreens, a conventional single touch resistive controller can be replaced with A D Metro’s two-touch resistive controller.

Exploring the two-Touch Resistive Controllers Design:
One of the key advantages of two-touch resistive controllers is the seamless integration offered by them. These controllers have a similar board dimension as the single-touch controllers. This extends to their connectors, which are compatible with the existing range of single-touch resistive controllers, ensuring an easy transition to A D Metro’s innovative two-touch resistive controllers.

This compatibility eliminates the need for extensive hardware modifications, minimizing the cost burden and complexities during upgrades.

Furthermore, these controllers prioritize exceptional responsiveness. They are engineered to facilitate a user experience characterized by quick touch registration. The system detects up to 100 touch points per second for single touches and 70 touch points per second for multi-touch interactions.

A D Metro’s two-touch resistive controllers emerge as a game-changer for Graphical User Interfaces (GUIs) across a vast array of applications. This innovative solution enables applications to operate in environments intimidating to other touch technologies while leveraging the power of multi-touch functionality. By seamlessly integrating with standard 5-wire resistive sensors, the two-touch controller elevates the functionalities of this well-established technology.

Beyond its integral reliability and reliable performance, the two-touch controller unlocks a new facet of capabilities for 5-wire resistive touchscreens. Here are a few revolutionary features A D Metro’s two-touch resistive controllers offer:

  • Two-touch operation with operational gestures like pinch, zoom, and rotate.
  • Easy integration through HID plug-and-play in Windows.
  • Negligible RF emissions
  • Fast, smooth, and responsive touch operations


Ask the touch screen experts at A D Metro