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Dc25badge

Matir·DC25Badge·dc25badge/dc25badge.kicad_pcb

Dc25badge PCB layout, top view — open source Microchip SAM board by Matir

About the Dc25badge PCB

Dc25badge is an open source Microchip SAM PCB design by Matir, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 126.8 × 48.3 mm, with 96 components from 24 distinct parts.

Its main chip is the ATSAMD21E18A-AU, from the Microchip SAM family. Other key parts include the MIC5305, TPS61232, 74AHCT125 and APA102. By type, the board carries 52 ICs, 28 capacitors, 5 resistors, 3 connectors, 3 switches and 1 transistor.

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

From the project

This is an unofficial badge I made for DEF CON 25. It's a blinding party-style badge with 48 individually addressable RGB LEDs. Off an adequate battery (a medium LiPo) you can run all lights at max brightness, but that is bright.

This is an unofficial badge I made for DEF CON 25. It's a blinding party-style badge with 48 individually addressable RGB LEDs. Off an adequate battery (a medium LiPo) you can run all lights at max brightness, but that is bright.

This is intended as a one-time release for others to learn from and/or remix the firmware. I don't plan to take pull requests since it will be over and I'll be on to another project by the release. :)

Main components on the Dc25badge

MIC5305TPS61232ATSAMD21E18A-AU74AHCT125APA102

Dc25badge bill of materials (BOM)

96 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MIC5305
U1
1
TPS61232
U2
1
ATSAMD21E18A-AU
U3
1
74AHCT125
U4
48
APA102
U11, U12, U14, U15, U17, U18, U19, U20 +40
1
DMN1019USN
Q1
1
32.768K
32.768k
Y1
1
BATT
P1
1
USB_OTG
P2
1
CORTEX
P3
1
Jumper_NO_Small
JP1
1
RESET
SW1
1
MODE
SW3
1
BRIGHT
SW4
1
LED
D1
1
1UH
1uH
L1
3
1u
C1, C3, C17
16
0.1U
0.1u
C2, C5, C7, C8, C9, C10, C15, C16 +8
4
22U
22u
C4, C6, C14, C27
1
10U
10u
C11
Show 4 more
QtyPartRefs
2
22PF
22pF
C12, C13
2
NP
C23, C28
4
330
R1, R2, R3, R5
1
10K
10k
R6

Dc25badge design files

The KiCad project lives in the Matir/DC25Badge repository on GitHub; these links point at the commit this page was built from.

Dc25badge: common questions

What microcontroller does the Dc25badge use?

The Dc25badge is built around the ATSAMD21E18A-AU, from the Microchip SAM family.

How big is the Dc25badge PCB?

The Dc25badge measures 126.8 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dc25badge?

96 components, from 24 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 Dc25badge design files?

From the Matir/DC25Badge repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Dc25badge design in my own project?

Yes, under the terms of its Apache-2.0 license, which Matir chose for the repository.

Can I test firmware for the Dc25badge 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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