7 open source Microchip SAM boards
Microchip (Atmel) SAMD, SAME, SAML and SAMC Arm Cortex-M0+ and M4 parts. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
Microchip SAMKira
kiibohd
366.9 × 114.3 mm400 partsCERN-OHL-1.2415
Microchip SAMMainboard
pycubed
90.2 × 95.9 mm196 parts2LNo license96
Microchip SAMTiny4FSK
New-England-Weather-Balloon-Society
35.1 × 76.3 mm80 parts4LCERN-OHL-W-2.095
Microchip SAMOpenFence
plyalex
57 × 97 mm74 parts2LGPL-3.028
Microchip SAMMainboard
AFS-pt
46.1 × 45.6 mm191 parts4LNo license15
Microchip SAMNode
ParadigmHyperloop
127 × 127 mm390 parts4LCustom license11
Microchip SAMDuet 2 Maestro
Duet3D
100 × 123 mm336 partsCERN-OHL-1.2257