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Create 2D Touchpads and Touchscreens with a Microcontroller

It’s Easy and Very Economical

Many of our microcontrollers (MCUs) feature on-chip capacitive touch engines. With these MCUs, you can control a touchpad or touchscreen without any additional cost. Our free 2D Touch Surface Library with built-in gesture recognition brings 2D surfaces to life to enhance the user experience for your products.The library runs in the background and interfaces easily with your applications or communications code for a true one-chip 2D touch platform.

We also offer easy-to-use hardware tools and code configurators to accelerate your development and speed up your time to market with your new touch-enabled products. Our global team of applications engineers will also support you when you come across any challenges or have any questions.

Target Applications

  • Headphone listening controls
  • Remote control trackpads
  • Smart speaker control surfaces
  • Virtual/augmented reality hand controllers
  • Game console controllers
  • Smart light switches
  • Thermostats
  • Automotive interior controls
  • Steering wheel touchpads
  • Wearable devices
  • Industrial control panels

Find everything you need to add 2D touch capabilities to your design here:

Touch Features

  • Single-finger tracking
  • Single- and dual-finger gesture recognition
    • Taps
    • Swipes
    • Swipe and hold
    • Rotations
    • Pinch and zoom
  • Water tolerance
  • Noise robustness
  • Ultra-low power consumption

Key Benefits

  • Touch sensing, gesture recognition and application/communications code in the same microcontroller
  • Graphical project designer creates code automatically
  • Supported by MCUs with a wide range of Flash memory, pin count and size options
  • Automotive-certified devices
  • Easy-to-use, comprehensive development ecosystem minimizes your time to market
  • Unified touch tuning ecosystem allows you to swap MCUs without losing momentum

How Does 2D Capacitive Touch Technology Work?

  • Projected capacitive touch sensors operate by measuring the tiny change in capacitance on an electrode when a human finger or other object comes in contact with a sensor grid underneath the touch surface
  • An on-chip touch peripheral is used to take separate measurements of the capacitance on all electrodes to determine the position of the finger
  • Additional on-chip processing functions are used to detect surface gestures like swipes and report them to the application software
projective-capactive-howitworksv2

Do You Need High-Performance Multi-Touch or Large Touchscreens?

maXTouch touch controllers support multi-finger, gloved-finger and wet operation for screens up to 24” in diagonal size that are used in a variety of automotive, home appliance, medical and industrial applications. Regardless of the conditions, maXTouch® touchscreen controllers are designed for robust and reliable operation in challenging environments. Host serial I2C, SPI and USB communication interfaces are available across the product portfolio.