STMT/8L-EV1

NRND

Touch sensing Library for STM8L - Evaluation board

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Product overview

Description

STMT/8L-EV1 is the STM8L evaluation board with a touch-sensing library which enables designers, who are familiar with the standard STM8Lxxx 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 touch-sensing library is a complete, free source-code solution to transform any 8-bit STM8L microcontroller into a capacitive touchkey controller.

  • All features

    • Hardware solution designed with an STM8L151 device in a 48-pin LQFP package
    • Touch-sensing interface offering 10 touchkeys, 1 wheel and 1 slider
    • LCD display to report touchkeys, wheel and slider status and parameters
    • Configurable operation: debounce, low-power mode duration, recalibration time-out, wheel/slider resolution.
    • Embedded ST-Link interface for user firmware evaluation
    • Touch-sensing library featuring:
      • Robust and proven charge-transfer acquisition principle
      • Excellent immunity against conductive noise
      • Supports up to 16 capacitive sensing channels
      • Low BOM with only 1 I/O per channel + 1 I/O per acquisition group for sampling capacitors
      • Up to 8-bit resolution wheel/slider using 3 channels
      • Fast acquisition time (typically 2 ms for touchkey, 7 ms for wheel/slider)
      • Advanced processing featuring: Autocalibration, Debounce filtering, Environment control system (ECS), Detection exclusion system
      • Free C source code library

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The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.
The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
Budgetary PriceMain country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes.