ATMEL XMEGA-A3BU Evaluation Board with 128x32 LCD

The ATMEL XMEGA-A3BU Explained evaluation kit is a comprehensive hardware platform designed for evaluating the capabilities of the Atmel ATxmega256A3BU 32-bit microcontroller. Part of the popular Atmel AVR Explained series, this kit provides an excellent foundation for engineers and developers to explore the extensive features and peripherals of the AVR XMEGA family, enabling rapid integration into custom designs.

The board is packed with onboard features that allow for immediate experimentation and development. These include a 128x32 pixel FSTN LCD display for visual feedback, one QTouch capacitive touch button, three mechanical push buttons for user input, and four LEDs for status indication. For sensing applications, it integrates three analog sensors, including temperature and light sensors, which can be read via the microcontroller's ADC (Analogue-to-Digital Converter).

Connectivity is a key strength, with a USB port for power and programming via the built-in bootloader, and a standard 10-pin JTAG header for connection to a full range of AVR debuggers and programmers. The kit also features a battery backup system to keep the Real-Time Clock (RTC) running when main power is disconnected and includes a 64Mbit data flash memory for read/write operations. Expansion headers provide easy access to all analogue and digital I/O pins, allowing the board to be extended with compatible Explained top modules for further functionality.

This evaluation board is an indispensable tool for prototyping and learning, offering a hands-on way to implement features such as touch sensing with the Atmel QTouch library, environmental monitoring, and low-power operation with battery backup. Its compact design and integrated peripherals make it ideal for accelerating project development across a wide spectrum of embedded applications.