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Haargabeldings

cpresser·haargabeldings

Haargabeldings PCB layout, top view — open source Microchip SAM board by cpresser
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About the Haargabeldings PCB

Haargabeldings is an open source Microchip SAM PCB design by cpresser, published on GitHub. It is a 2-layer board measuring 159 × 36 mm, with 102 components from 26 distinct parts.

Its main chip is the ATSAMD21G18A-M, from the Microchip SAM family. Other key parts include the MCP73831-2-OT, TPS22929D, TPS79330-EP, MPU-6050 and AT25SF081-SSHD-X. By type, the board carries 47 capacitors, 32 diodes, 10 resistors, 6 ICs, 3 connectors and 2 switches.

It belongs with the power & battery designs in this gallery.

From the project

A Hair-Thingy with LEDs

Since there was no space left to route tracks or put parts, no other Pins are broken out. Also there is no USB ESD Protection.

All parts are available at digikey though - assuming there is no global semiconductor supplychain crisis.

Haargabeldings, from the project README
From the project README

Main components on the Haargabeldings

MCP73831-2-OTATSAMD21G18A-MTPS22929DTPS79330-EPMPU-6050AT25SF081-SSHD-X

Haargabeldings bill of materials (BOM)

102 components, 26 distinct parts.

QtyPartRefs
1
MCP73831-2-OT
U1
1
ATSAMD21G18A-M
U2
1
TPS22929D
U3
1
TPS79330-EP
U4
1
MPU-6050
U5
1
AT25SF081-SSHD-X
U6
1
32kHz
Y1
1
USB_B_Micro
J1
1
Picoblade_01x03
J2
1
SWD
J3
2
SKRKAEE020
SW1, SW2
1
blue
D1
1
BZT52C2V7T-7
D2
30
APA102-2020
D3, D4, D5, D6, D7, D8, D9, D10 +22
1
BLM18
L1
37
100n
C1, C4, C5, C7, C10, C15, C16, C17 +29
1
1u
C2
5
4u7
C3, C11, C12, C13, C14
2
12p
C6, C8
1
10n
C9
Show 6 more
QtyPartRefs
1
2n2
C20
2
100k
R1, R2
1
4.7k
R3
3
270R
R4, R5, R7
1
1k
R6
3
10k
R8, R9, R10

Haargabeldings design files

The KiCad project lives in the cpresser/haargabeldings repository on GitHub; these links point at the commit this page was built from.

Haargabeldings: common questions

What microcontroller does the Haargabeldings use?

The Haargabeldings is built around the ATSAMD21G18A-M, from the Microchip SAM family.

How big is the Haargabeldings PCB?

The Haargabeldings measures 159 × 36 mm, has 2 copper layers and is 0.57 mm thick.

How many components are on the Haargabeldings?

102 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Haargabeldings design files?

From the cpresser/haargabeldings repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Haargabeldings design in my own project?

The repository has no license, so all rights stay with cpresser. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Haargabeldings 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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