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Obscura60

HNBN9·Obscura60·obscura60/H360.kicad_pcb

Obscura60 PCB layout, top view — open source Nordic nRF board by HNBN9

About the Obscura60 PCB

Obscura60 is an open source Nordic nRF PCB design by HNBN9, published on GitHub. It is a 2-layer board measuring 285 × 96.5 mm, with 158 components from 22 distinct parts.

Its main chip is the nRF52840_holyiot_18010, from the Nordic nRF family. Other key parts include the C85364, C5446 and C15464. By type, the board carries 65 diodes, 10 resistors, 6 capacitors, 4 ICs, 3 switches and 2 connectors.

It belongs with the keyboards and iot & wireless designs in this gallery.

From the project

Obscura60 | first keyboard build 60% wireless

Colored By - Mr.Finishing Surfacer 1500 Black Tamiya TS81 - top Tamiya TS55 - bottom

Keycaps - 日当午GMK Prussian Alert普鲁(ordered 1 more 3u spacebar)

Main components on the Obscura60

C85364nRF52840_holyiot_18010C5446C15464

Obscura60 bill of materials (BOM)

158 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C85364
SRV05-4-P-T7
U1
1
nRF52840_holyiot_18010
U3
1
C5446
XC6206P332MR-G
U4
1
C15464
BQ24075RGT
U5
1
C8545
2N7002
Q1
1
TYPE-C-31-M-12
J1
1
S2B-PH-SM4-TB
J2
1
C84140
MF-MSMF075-2
F1
65
MX_SW_HS
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +57
1
PWR
SW1
2
C318884
TS-1187-A-B-A-B
SW2, SW3
65
C81598
D_Small
D3, D4, D5, D6, D7, D8, D9, D10 +57
1
C88970
BLM15PX121SN1D
L1
3
C19666
4.7u
C3, C4, C5
2
C15850
1u
C6, C7
1
C1525
100n
C8
2
C25905
5.1k
R1, R2
1
C25804
3.4k
R3
1
C25867
1.5k
R4
4
C25744
10k
R5, R7, R8, R9
Show 2 more
QtyPartRefs
1
C25792
47k
R6
1
C25076
100R
R10

Obscura60 design files

The KiCad project lives in the HNBN9/Obscura60 repository on GitHub; these links point at the commit this page was built from.

Obscura60: common questions

What microcontroller does the Obscura60 use?

The Obscura60 is built around the nRF52840_holyiot_18010, from the Nordic nRF family.

How big is the Obscura60 PCB?

The Obscura60 measures 285 × 96.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Obscura60?

158 components, from 22 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 Obscura60 design files?

From the HNBN9/Obscura60 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 Obscura60 design in my own project?

The repository has no license, so all rights stay with HNBN9. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Obscura60 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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