HardLabs

Aura a03

Avinash1286·pendent·hardware/native/aura-a03.kicad_pcb

Aura a03 PCB layout, top view — open source Nordic nRF board by Avinash1286
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About the Aura a03 PCB

Aura a03 is an open source Nordic nRF PCB design by Avinash1286, published on GitHub under the MIT license. It is a 4-layer board measuring 24 × 42 mm, with 61 components from 61 distinct parts.

Its main chip is the MDBT50Q-1MV2, from the Nordic nRF family. Other key parts include the W25N01GVZEIG, BQ25185DLHR, TLV75530PDBVR, MAX17048G+T10 and DRV2605LDGSR. By type, the board carries 22 resistors, 18 capacitors, 9 ICs, 4 connectors, 2 microphones and 2 switches.

It belongs with the wearables designs in this gallery.

From the project

AURA: open wearable note-taking device development — PCB, printable case, firmware, Next.js/Convex notes, interactive 3D site and launch film.

Open aura-a03.kicadpro in KiCad 10. This directory is the paired editable PCB and schematic used for the manufacturing exports. The working routing record remains in ../output/aura-a03-native-routing.kicadpcb; the original native schematic reconstruction remains in ../output/aura-a03-electrical.kicadsch.

The paired project preserves the verified copper and pads, links every footprint to its actual schematic sheet/symbol UUID, and uses project-relative AURAPCB snapshots. Schematic footprint fields match those snapshots. The 37 intentional NC pads receive their schematic singleton net names…

Main components on the Aura a03

MDBT50Q-1MV2W25N01GVZEIGBQ25185DLHRTLV75530PDBVRMAX17048G+T10DRV2605LDGSRSN74LVC2G125DCURTLV6700DDCR

Aura a03 bill of materials (BOM)

61 components, 61 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MDBT50Q-1MV2
U1
1
W25N01GVZEIG
U2
1
BQ25185DLHR
U3
1
TLV75530PDBVR
U4
1
MAX17048G+T10
U5
1
DRV2605LDGSR
U6
1
TLV75530PDBVR
U7
1
SN74LVC2G125DCUR
U8
1
TLV6700DDCR
U9
1
DMG2302UK-7
Q1
1
AURA-DOCK-PADS
J1
1
AURA-BATTERY-PADS
J2
1
AURA-SWD-PADS
J3
1
AURA-LRA-PADS
J4
1
SPH0641LU4H-1
MK1
1
SPH0641LU4H-1
MK2
1
JS202011JCQN
SW1
1
KMR211NGULCLFS
SW2
1
LTST-C190KFKT
LED1
1
BAT54WS-7-F
D1
Show 41 more
QtyPartRefs
1
PESD5V0S1BA,115
D2
1
C0402C104K4RACTU
100nF
C1
1
C0603C475K8PACTU
4.7uF
C2
1
939113424610-T3N
100nF silicon
C3
1
939113424610-T3N
100nF silicon
C4
1
C0402C104K4RACTU
100nF
C5
1
C0603C475K8PACTU
4.7uF
C6
1
C0603C225K8RACTU
2.2uF
C7
1
C0603C475K8PACTU
4.7uF
C8
1
C0805C106K8PACTU
10uF
C9
1
C0603C225K8RACTU
2.2uF
C10
1
C0402C104K4RACTU
100nF
C11
1
C0603C105K4RACTU
1uF
C12
1
C0603C105K4RACTU
1uF
C13
1
C0603C105K4RACTU
1uF
C14
1
C0603C105K4RACTU
1uF
C15
1
C0402C104K4RACTU
100nF
C16
1
C0402C103K5RACTU
10nF
C17
1
C0402C104K4RACTU
100nF
C18
1
RC0402FR-075K62L
5.62k
R1
1
RC0402FR-0724KL
24k
R2
1
RC0402FR-0710KL
10k
R3
1
RC0402FR-0710KL
10k
R4
1
RC0402FR-0710KL
10k
R5
1
RC0402FR-074K7L
4.7k
R6
1
RC0402FR-074K7L
4.7k
R7
1
RC0402FR-07100KL
100k
R8
1
RC0402FR-07100KL
100k
R9
1
RC0402FR-07100KL
100k
R10
1
RC0402FR-0710KL
10k
R11
1
RC0402FR-0710KL
10k
R13
1
RC0402FR-071KL
1k
R14
1
RC0402FR-07100KL
100k
R15
1
RC0402FR-0733RL
33
R16
1
RC0402FR-0733RL
33
R17
1
RC0402FR-0710KL
10k
R18
1
RC0402FR-0710KL
10k
R19
1
RC0402FR-0710KL
10k
R20
1
RC0402FR-0710KL
10k
R21
1
RC0402FR-073K3L
3.3k
R22
1
RC0402FR-0710KL
10k
R23

Aura a03 design files

The KiCad project lives in the Avinash1286/pendent repository on GitHub; these links point at the commit this page was built from.

Aura a03: common questions

What microcontroller does the Aura a03 use?

The Aura a03 is built around the MDBT50Q-1MV2, from the Nordic nRF family.

How big is the Aura a03 PCB?

The Aura a03 measures 24 × 42 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the Aura a03?

61 components, from 61 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 Aura a03 design files?

From the Avinash1286/pendent 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 Aura a03 design in my own project?

Yes, under the terms of its MIT license, which Avinash1286 chose for the repository.

Can I test firmware for the Aura a03 without the hardware?

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

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