CircuitBrains Deluxe is the smallest solderer-able ATSAMD51 module . Skip on all the tedious work of adding a powerful Cortex M4 32-bit microcontroller to your next project. Null Byte Labs has taken care of the tough work of pin mappings, power & decoupling layout, clock, flash, assembly, bootloader, and firmware. All you need to do is drop a footprint into your next PCB design project, connect your peripherals and USB connector, then solder it on.. BAM! You can start writing your code and designing with half the work.