Check the listing for details. Adafruit ItsyBitsy M4 Express featuring ATSAMD51. Condition: New. Listed at 8.00 USD. Experience the power of the Adafruit ItsyBitsy M4 Express, equipped with an ATSAMD51 core, designed to bring your projects to life with unparalleled speed and efficiency. Perfect for hobbyists and professionals alike, this microcontroller is part of Adafruit's esteemed M4 series, renowned for its reliable performance and robust feature set.The ItsyBitsy M4 Express is an Arduino-compatible board that offers a plethora of advanced functionalities, making it ideal for developing a wide range of applications. With its compact design, this board is perfect for those looking to create small yet powerful devices without compromising on performance. Whether you're working on an intricate robotics project or a sophisticated IoT solution, this microcontroller is up to the task.