A closer look at Atmel’s XMEGA-B1 Xplained

Atmel’s ATxmega128B1 is a low power, high performance 8/16-bit AVR microcontroller. The MCU boasts 128KB self-programming flash program memory, 8KB boot code section, 8KB SRAM, 2048-byte EEPROM, 2-channel DMA controller, 4-channel event system, USB (full speed), 4×40 segment LCD controller and up to 32 MIPS throughput at 32MHz.


The versatile device can be used to power a wide range of applications, including utility metering, home automation, climate control, industrial control, sports equipment, toys, eToken, medical, power tools and fire alarm systems.

To accelerate development with the ATxmega128B1, Atmel offers the XMEGA-B1 Xplained, a hardware-based platform that allows engineers to more easily evaluate the device.

Aside from the ATxmega128B1 microcontroller (MCU), key XMEGA-B1 Xplained specs include:

  • 4×40 transflective LCD module with backlight
  • Transfer data over the USB full/low speed device interface
  • Read a light sensor with the ADC
  • Read a temperature sensor with the ADC
  • Measure external voltage input with ADC
  • Measure potentiometer voltage with ADC
  • Read status of the 4 Atmel QTouch buttons from AT42QT1040 QTouch device
  • 4 LEDs to show status information
  • Read/write data to the 64Mbit Atmel DataFlash
  • Program the kit via USB bootloader or an Atmel programmer
  • Expand the board with Xplained top modules

The XMEGA-B1 Xplained can be ordered from Atmel’s official store here.

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