HardLabs

Atsamd20-breakout

elevendroids·atsamd20-breakout

Atsamd20-breakout layout, top view — open source Microchip SAM board by elevendroids

About the Atsamd20-breakout

Atsamd20-breakout is an open source Microchip SAM PCB design by elevendroids, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 24 × 50 mm, with 33 components from 20 distinct parts.

Its main chip is the ATSAMD20E18A-A, from the Microchip SAM family. By type, the board carries 13 resistors, 10 capacitors, 3 connectors, 2 crystals, 1 IC and 1 transistor.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

SAM D20 / SAM D21 Breakout Board

Small breakout board designed for the SAM D20 and SAM D21 ARM Cortex-M0+ microcontrollers from Microchip

- minimal subset of components, no power regulation etc. - optional external main and real-time crystals - if not used, their GPIO pins can be connected to the user header by soldering relevant 0R resistors (see schematic) - one buffered user LED, connected to the header - no reserved GPIO - reset button - standard 0.05" pitch SWD programming header, SWD signals also present on the pin headers

Atsamd20-breakout, from the project README
From the project README

Main components on the Atsamd20-breakout

ATSAMD20E18A-A

Atsamd20-breakout bill of materials (BOM)

33 components, 20 distinct parts.

QtyPartRefs
1
ATSAMD20E18A-A
U1
1
BC847
Q1
1
32.768kHz
Y1
1
8MHz
Y2
1
SWD
J1
1
Left
J2
1
Right
J3
1
Reset
SW1
1
LED
D1
1
Ferrite_Bead_Small
FB1
2
12p
C1, C2
2
15p
C3, C4
2
10u
C5, C7
3
100n
C6, C8, C9
1
1u
C10
8
0R
R1, R2, R3, R4, R9, R10, R14, R15
2
330R
R5, R11
1
10k
R6
1
47k
R7
1
100k
R8

Atsamd20-breakout design files

The KiCad project lives in the elevendroids/atsamd20-breakout repository on GitHub; these links point at the commit this page was built from.

Atsamd20-breakout: common questions

What microcontroller does the Atsamd20-breakout use?

The Atsamd20-breakout is built around the ATSAMD20E18A-A, from the Microchip SAM family.

How big is the Atsamd20-breakout?

The Atsamd20-breakout measures 24 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Atsamd20-breakout?

33 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Atsamd20-breakout design files?

From the elevendroids/atsamd20-breakout repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Atsamd20-breakout design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which elevendroids chose for the repository.

Can I test firmware for the Atsamd20-breakout without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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