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Introduction

This reference design demonstrates a capacitive touch bluetooth keyboard based on ATSAMD21 and ATBTLC1000. It uses an integrated peripheral touch controller for capacitive touch sensing, whereas the Bluetooth communication is implemented with ATBTLC1000 and BlueSDK. The multifunction compact keyboard can be used as an input interface with smart devices such as PC, Mobile, Tablet and Television. This solution embodies a low-cost, low power compact design, seamless Bluetooth communication and variety of functions including air mouse, predictive LED backlighting for ease of use.

关键特性

  • ATSAMD21 ARM-based MCU and BTLC1000 bluetooth module (precertified)
  • 40 mutual capacitance touch keys
  • Coplanar sensor design
  • Predictive LED backlighting
  • Connectivity through Bluetooth® SMART (BLE 4.1)
  • Standard USB 2.0 interface
  • Intelligent Air-Mouse, predictive LED backlighting
  • Battery powered with ~150 hours operation
  • Firmware upgrade through on-board USB Boot Loader