About this item

The Adafruit ItsyBitsy M4 Express is a compact yet incredibly powerful development board featuring the Microchip ATSAMD51 Cortex M4 processor running at 120 MHz. Despite its small size—just 1.4" x 0.7"—this board packs serious performance with 512KB of flash, 192KB of RAM, and floating-point support, making it ideal for advanced, space-constrained projects.