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  • STMicroelectronics STM8S-TOUCH-LIB is a touch sensing library that provides a complete and robust free source-code solution to transform any 8-bit microcontroller into a capacitive touch sensing controller. This solution allows designers familiar with the use of standard microcontrollers to create higher-end human interfaces by replacing conventional electromechanical switches by touch sensing keys.

    The STM8 touch sensing library is part of the application firmware. It allows combining various capacitive sensing touchkey/linear/rotary touch sensors with traditional MCU features (communications, control of LEDs, beeper or LCD) in the same application.

    Key Features

    Complete C source code library with firmware examples for STM8S and STM8A microcontrollers


    Resistor-capacitor (RC) acquisition principle supported


    Multifunction capability to combine capacitive sensing functions with traditional MCU features (communications, LED/beeper/ LCD control)


    Flexible touchkey/linear/rotary touch sensors configuration and combination with up to 24 touchkeys and 2 linear/rotary.


    Acquisition, filtering and calibration functions


    Enhanced processing features for optimized sensitivity and immunity
    MCU resources
    • Minimized number of external components
    • Reduced MCU memory space



    Up to 8-bit linear/rotary resolution


    Active shield feature


    Compliant with MISRA


    Compliant with Cosmic, IAR and Raisonance C compilers

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00 Files Selected

Technical Documentation

    • Description Version Size Action
      DB2073
      STM8S touch sensing library
      1.0
      183.26 KB
      PDF
      DB2073

      STM8S touch sensing library

    • Description Version Size Action
      AN2927
      Resistor-Capacitor (RC) acquisition principle for STM8 touch sensing applications
      3.0
      332.05 KB
      PDF
      AN2927

      Resistor-Capacitor (RC) acquisition principle for STM8 touch sensing applications

Presentations & Training Material

    • Description Version Size Action
      STM32 and STM8 embedded software solutions 7.0
      3.12 MB
      PDF

      STM32 and STM8 embedded software solutions

Legal

    • Description Version Size Action
      SLA0048
      Mix Ultimate Liberty+OSS+3rd-party V1 - SOFTWARE LICENSE AGREEMENT
      5.2
      87.58 KB
      PDF
      SLA0048

      Mix Ultimate Liberty+OSS+3rd-party V1 - SOFTWARE LICENSE AGREEMENT