HardLabs

Protospin

Matir·DC25Badge·protospin/protospin.kicad_pcb

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

About the Protospin PCB

Protospin 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 57.3 × 38.1 mm, with 32 components from 26 distinct parts.

Its main chip is the TPS61232, from the Microchip SAM family. Other key parts include the MIC5305, ATSAMD21E18A-AU, 74AHCT125 and APA102. By type, the board carries 15 capacitors, 6 ICs, 4 connectors, 4 resistors, 1 crystal and 1 switch.

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 Protospin

MIC5305TPS61232ATSAMD21E18A-AU74AHCT125APA102

Protospin bill of materials (BOM)

32 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MIC5305
U1
1
TPS61232
ATSAMD21E18A-AU
U2
1
ATSAMD21E18A-AU
TPS61232
U3
1
74AHCT125
U4
2
APA102
U5, U6
1
32.768K
32.768k
Y1
1
BATT
P1
1
USB_OTG
P2
1
CONN_CORTEX
P3
1
CONN_01X16
P4
1
RESET
SW1
1
1UH
L_Core_Ferrite
L1
1
1u
C1
3
0.1U
0.1u
C2, C9, C10
1
0.1u
C3
1
22U
0.1u
C4
2
0.1U
22pF
C5, C7
1
22U
1u
C6
2
0.1U
22u
C8, C15
1
10U
0.1u
C11
Show 6 more
QtyPartRefs
1
22PF
10u
C12
1
22PF
22u
C13
1
22U
22u
C14
1
330
R1
2
330
10k
R2, R3
1
10k
R4

Protospin design files

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

Protospin: common questions

What microcontroller does the Protospin use?

The Protospin is built around the TPS61232, from the Microchip SAM family.

How big is the Protospin PCB?

The Protospin measures 57.3 × 38.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Protospin?

32 components, from 26 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 Protospin 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 Protospin 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 Protospin 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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