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Home » NEWEST Products » New by Manufacturer » Silicon Labs » Silicon Labs TOOLSTICKCLASSD MCU Evaluation Kit
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Silicon Labs

Silicon Labs TOOLSTICKCLASSD MCU Evaluation Kit

Silicon Labs Class D Toolstick Demonstration Kit is a cost-effective USB-based evaluation kit that enables developers to add digital Class D audio capabilities to 32-bit embedded designs based on Silicon Labs' feature-rich SiM3U1xx Precision32™ microcontrollers (MCUs). The new Class D ToolStick kit demonstrates how easy and economical it is to upgrade basic "buzzer/beeper" alert sounds used in personal medical devices, fitness equipment, high-end toys, small appliances and other consumer electronics products to more sophisticated voice prompts, music, sound clips and even streaming audio.

  • Versatile, easy-to-use Class D demo kit and software
  • Cost-effective development platform for SiM3U1xx / SiM3C1xx MCUs, only $35!
  • Smart integration: 5 V internal regulator, crystal-less USB, 300 mA drive I/O, capacitive touch
  • Free development tools, source code and AppBuilder files


  • Allows customers to easily add audio to an application
  • Reference design supporting USB audio, portable audio players and voice recording playback

  • Intuitive capacitive touch user interface
  • Built-in USB based debug/program interface
  • Accessible pins on standard spacing for easy prototyping
  • Reduces BOM cost by up to $1.30
  • Saves PCB area and cost
  • Simplifies design
  • Support for all major tools vendors
  • Free Eclipse based IDE and compiler
  • Free AppBuilder software enables pinout, peripheral and clocking initialization

Kit Contents
  • Class-D ToolStick board
  • 2 x mini USB cables
  • 1 x male-to-male stereo cable
  • 1 x 1 W speaker
  • 2 x cylinder cutouts
  • Class-D ToolStick Quick Start Guide
  • UART interface using standard USB HID device class
  • 12 Configurable GPIO Pins with Alternate Functions
Additional Resources
User's Guide
Quick Start Guide
Adding Class D Audio to Embedded Systems in an Unconventional Way
Adding Sound to Embedded Designs - Silicon Labs Video

  • Silicon Labs
  • Embedded Solutions