“This is a small but oh-so-powerful board using the Feather form factor. It hasn't struggled to do even some computationally-complex calculations for me, and it's supported by CircuitPython which makes quick & easy software prototyping a breeze. I'm very pleased with this board.”
“Bought it for samd51J20, comes with bootloader saying it's samd51J19. I tried to use it with j-link edu mini but microchip studio can't read device information (probably need to reset fuses, I'm not there yet to understand that well enough), and the little pads you have to solder wires to for swd debugging didn't survive the challenge. After loading circuitpython there's only 500kB availble for your scripts, the 4MB external flash chip apparently is not being utilized. Oh well, I'm going to use it with Arduino IDE then, and for everything else I would get Adafruit's Grand Central instead.”
