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Osprey rev a

ebastler·osprey·osprey_rev_a/osprey_rev_a.kicad_pcb

Osprey rev a PCB layout, top view — open source Nordic nRF board by ebastler
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About the Osprey rev a PCB

Osprey rev a is an open source Nordic nRF PCB design by ebastler, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 256.1 × 99.3 mm, with 150 components from 44 distinct parts.

Its main chip is the NRF52840-QIAA, from the Nordic nRF family. Other key parts include the BQ24075RGTR, MAX17048G+ and USBLC6-2P6. By type, the board carries 44 switches, 43 diodes, 27 capacitors, 14 resistors, 6 inductors and 5 connectors.

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

From the project

A wireless ergonomic keyboard

The Osprey is a column staggered 40% wireless ergonomic keyboard. PCB and 3D-printable case are both open source (CERN OHL Permissive), and so is the software (MIT) as it is designed to run the ZMK firmware.

The board was designed to be an elegant and sleek unibody keyboard, without sacrificing typing comfort or portability. While the enclosure has raised edges to hide the keyswitches for a more refined look, it is still as slim as possible with Choc v1 switches, leading to a total thickness of about 16 mm from bottom to keycap top, if used with MBK keycaps.

Osprey rev a, from the project README
From the project README

Main components on the Osprey rev a

NRF52840-QIAABQ24075RGTRMAX17048G+USBLC6-2P6

Osprey rev a bill of materials (BOM)

150 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NRF52840-QIAA
nRF52840
Nordic Semiconductor
U1
1
BQ24075RGTR
BQ24075
Texas Instruments
U2
1
MAX17048G+
MAX17048
Maxim Integrated
U3
1
USBLC6-2P6
STMicroelectronics
U4
1
2N7002
Q1
1
SC20S-9.0PF20PPM
32.768 KHz
Seiko Instruments
Y1
1
XRCGB32M000F1H01R0
32 MHz
Murata
Y2
1
TYPE-C-31-M-14
HRO_TYPE-C-31-M-14
HRO
J1
1
BM02B-ACHSS-GAN-ETF
ACH_BM02B-ACHSS
JST
J2
1
FH33J-4S-0.5SH
Hirose
J3
1
FH33J-12S-0.5SH
Hirose
J4
1
SWD_TC2030
J5
1
MF-FSMF050X-2
750 mA
Bourns
F1
1
MountingHole_Pad
PNT1
40
CPG135001S30
Kailh
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +32
2
CPG135001S30
Kailh
SW39, SW40
1
MSK12C02
PWR
SHOU HAN
SW43
1
SKQGAKE010
RST
Alps Alpine
SW44
1
blue
LED1
1
orange
LED2
Show 24 more
QtyPartRefs
42
1N4148WT
D1, D2, D3, D4, D5, D6, D7, D8 +34
1
BSD3C051V
BORN
D43
1
LQG15HS4N7B02D
4.7 nH
muRata
L1
2
LBMF1608T100K
10 uH
Taiyo Yuden
L2, L4
1
LQG15HS15NJ02D
15 nH
muRata
L3
2
BLM15PX121SN1D
muRata
L5, L6
4
12 pF
C1, C2, C6, C7
1
0.5 pF
C4
1
0.8 pF
C5
5
1 uF
C8, C14, C22, C24, C26
1
47 nF
C9
7
4.7 uF
C10, C15, C19, C20, C21, C23, C25
1
820 pF
C11
1
100 pF
C12
6
100 nF
C13, C16, C17, C18, C27, C28
4
10 kOhm
R1, R2, R5, R11
2
1 kOhm
R3, R4
1
47 kOhm
R6
1
1.5 kOhm
R7
1
3.9 kOhm
R8
1
100 kOhm
R9
1
100 Ohm
R10
2
5.1 kOhm
R12, R13
1
1 MOhm
R14

Osprey rev a design files

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

Osprey rev a: common questions

What microcontroller does the Osprey rev a use?

The Osprey rev a is built around the NRF52840-QIAA, from the Nordic nRF family.

How big is the Osprey rev a PCB?

The Osprey rev a measures 256.1 × 99.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Osprey rev a?

150 components, from 44 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 Osprey rev a design files?

From the ebastler/osprey 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 Osprey rev a design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which ebastler chose for the repository.

Can I test firmware for the Osprey rev a 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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