SAMD21 Features

• SAMD21J18A microcontroller
• One mechanical reset button
• One mechanical user pushbutton (wake-up, bootloader entry or general purpose)
• One yellow user LED
• 32.768kHz crystal
• USB interface, device and reduced host mode
• 8 Mbit Serial Flash
• 3 Xplained Pro extension headers
• Embedded Debugger
  • Auto-ID for board identification in Atmel Studio 6.1
  • One yellow status LED
  • One green board power LED
  • Symbolic debug of complex data types including scope information
  • Programming and debugging
  • Data Gateway Interface: SPI, I²C, 4 GPIOs
  • Virtual COM port (CDC)
• USB powered
• Supported with application examples in Atmel Software Framework