Resistive Touch Counter

How the Resistive Touch Counter Works

Count presses on a resistive touch screen. This type of screen uses pressure to bring two layers together. A finger, glove or pen can make contact.

1. Open the counter on the device: Run the counter on the resistive-screen device, such as a kiosk, POS terminal or industrial panel.
2. Press with finger, stylus or glove: Resistive screens respond to any object that presses the top layer.
3. Count presses: Each registered press adds 1.
4. Check single-point behavior: Two simultaneous presses register as 1 point between them on most 4-wire panels.

Resistive Touch Counter Formula

Count each valid press once. The rate is valid presses divided by the test time.

V_x, V_y

Voltages read on each axis

V_ref

Drive voltage, such as 3.3 V

Width, Height

Active screen size in pixels

Example: On an 800 × 480 px panel driven at 3.3 V, readings of V_x = 1.65 V and V_y = 0.825 V give a touch at (400, 120).

Resistive Touch Counter Reference Table

This table compares touch screen types and the input each one can detect.

About the Resistive Touch Counter

A resistive screen detects a press where its layers meet. It works in a different way from a screen that senses an electric field.

Use a light, steady press for a test. Too little pressure may miss a touch. Check the device guide for the force and input types the screen supports.

Ways to Use the Resistive Touch Counter

Use press counts to test panels, pens and gloved input. Here are five common tasks.

• ✓Industrial panels: Operators count presses on machine control screens.
• ✓POS terminals: Staff count signatures or entries on older tills.
• ✓Medical devices: Technicians check press counts on gloved-use screens.
• ✓Screen wear testing: Engineers count presses during durability tests.
• ✓Legacy kiosks: Teams check response on older public kiosks.