STM8S evaluation board with Touch Sensing solution evaluation

The STM8S touch sensing evaluation kit (STM8/128-EV/TS) enables designers, who are familiar with standard STM8S microcontrollers, to create higher-end look-and-feel user interfaces by replacing conventional electromechanical switches with touch sensing controls. Designers can thus combine touch sensing functions with traditional MCU features such as communication, LED control, beeper, LCD control, and so on.

The kit contains an STM8/128-EVAL board, and an STM8S touch sensing evaluation daughterboard (STM8Sxxx-TS1) which provides an evaluation platform for the resistor-capacitor acquisition principle.

The touch sensing library is a complete, free source-code solution to transform any 8-bit STM8 microcontroller into a capacitive touchkey controller.

Key Features

  • Evaluation kit composed of:
    • STM8/128-EVAL evaluation board
    • STM8Sxxx-TS1 daughterboard
  • Touch-sensing interface offering 5 touchkeys and 1 slider
  • LCD display to report touchkeys, slider status and parameters
  • Configurable operation: debounce, low-power mode duration, recalibration time-out, slider resolution.
  • Touch sensing library featuring:
    • RC acquisition principle
    • Supports up to 24 capacitive sensing touchkeys
    • Supports up to 2 capacitive sensing wheels or sliders using 5 or 8 channels
    • Supports of active shield
    • Low BOM with only 1 I/O per channel + 1 I/O to control the load resistor.
    • Up to 8-bit resolution wheel/slider using 8 channels
    • Advanced processing featuring: Autocalibration, Debounce filtering, Environment control system (ECS), Detection exclusion system
  • – Free C source code library




Technical Documentation

Product Specifications
Description Version Size
DB1070 DB1070: STM8S touch sensing evaluation kit 1.1 68 KB
Technical Notes & Articles
Description Version Size
TN0075 TN0075: Touch sensing software library (TSSL) frequently asked and anticipated questions (FAAQs) 1.7 61 KB
User Manuals
Description Version Size
UM0671 UM0671: STM8/128-EV/TS STM8S touch sensing evaluation board 4.3 1 MB


License Agreement
Description Version Size
Evaluation products license agreement 1.4 128 KB
Open Reference Material License Agreement v5 42 KB

Tools and Software

Embedded Software
MCUs Embedded Software
Support & Community

Sample & Buy

Part Number Marketing Status Unit Price (US$) * Quantity Specific features ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors

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Quality & Reliability

Part Number Marketing Status RoHS Compliance Grade Material Declaration**
STM8/128-EV/TS NRNDEcopack1

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.