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Pixelrings dock

jfedor2·pixelrings·dock/kicad/pixelrings-dock.kicad_pcb

Pixelrings dock PCB layout, top view — open source Microchip SAM board by jfedor2
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About the Pixelrings dock PCB

Pixelrings dock is an open source Microchip SAM PCB design by jfedor2, published on GitHub. It is a 2-layer board measuring 36 × 49 mm, with 25 components from 12 distinct parts.

Its main chip is the ATSAMD21E18A-M, from the Microchip SAM family. Other key parts include the MCP73831-2-OT. By type, the board carries 11 connectors, 5 resistors, 3 capacitors, 2 ICs, 2 diodes and 1 switch.

From the project

LED earrings programmable in Python

This repository contains designs and instructions to make LED earrings that are programmable in Python.

Each earring is a PCB with a SAMD21 chip and 12 individually addressable RGB LEDs. The diameter of the earring is 30mm and the weight is around 6 grams. To charge the batteries and program the earrings there's a dock that connects to your computer over USB.

Pixelrings dock, from the project README
From the project README

Main components on the Pixelrings dock

ATSAMD21E18A-MMCP73831-2-OT

Pixelrings dock bill of materials (BOM)

25 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATSAMD21E18A-M
TLV75533PDBVR
U1
1
MCP73831-2-OT
U2
11
Conn_01x01_Pin
J2, J3, J4, J5, J6, J7, J8, J9 +3
1
C963205
SW_Slide_DPDT
SW1
1
HRO-TYPE-C-31-M-12
USB1
1
WS2812B
Orange
D1
1
WS2812B
Green
D2
2
1u
C1, C2
1
10u
C3
2
5.1k
R1, R2
1
66.5k
R3
2
1k
R4, R5

Pixelrings dock design files

The KiCad project lives in the jfedor2/pixelrings repository on GitHub; these links point at the commit this page was built from.

Pixelrings dock: common questions

What microcontroller does the Pixelrings dock use?

The Pixelrings dock is built around the ATSAMD21E18A-M, from the Microchip SAM family.

How big is the Pixelrings dock PCB?

The Pixelrings dock measures 36 × 49 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pixelrings dock?

25 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pixelrings dock design files?

From the jfedor2/pixelrings repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Pixelrings dock design in my own project?

The repository has no license, so all rights stay with jfedor2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pixelrings dock 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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