HardLabs

Le oeuf v2

eggsworks·le-oeuf-v2·le-oeuf/le-oeuf.kicad_pcb

Le oeuf v2 PCB layout, top view — open source Nordic nRF board by eggsworks

About the Le oeuf v2 PCB

Le oeuf v2 is an open source Nordic nRF PCB design by eggsworks, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 215.1 × 85 mm, with 65 components from 23 distinct parts.

Its main chip is the C356849, from the Nordic nRF family. Other key parts include the TPUSBLC6-2SC6 and TP4054. By type, the board carries 40 diodes, 7 resistors, 5 capacitors, 3 ICs, 3 inductors and 2 connectors.

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

From the project

An ultra-low profile (Kailh PG1316S) keyboard inspired by Le Chiffre.

An ultra-low profile (Kailh PG1316S) keyboard inspired by Le Chiffre.

L'oeuf is a semi-integrated PCB using an E73 BLE module. It is intended to be fully SMT assembled.

A mid-mount USB-C port and JST ACH battery connector keep the board as thin as possible.

ZMK firmware available from eggsworks/zmk-config

This design is available under the terms of the CERN-OHL-S.

Le oeuf v2, from the project README
From the project README

Main components on the Le oeuf v2

C356849TPUSBLC6-2SC6TP4054

Le oeuf v2 bill of materials (BOM)

65 components, 23 distinct parts.

QtyPartRefs
1
C356849
E73-2G4M08S1C-52840
Chengdu Ebyte Elec Tech
U1
1
TPUSBLC6-2SC6
USBLC6-2SC6
TECH PUBLIC
U2
1
TP4054
JSMSEMI
U3
1
AO3407
BORN
Q1
1
X161032768KLD2SI
32.768kHz 9pF
YXC Crystal Oscillators
X1
1
BM02B-ACHSS-GAN-ETF(LF)(SN)
BM02B-ACHSS-GAN-ETF
JST
J1
1
TYPE-C-31-M-14
Korean Hroparts Elec
J5
1
BSMD1206-050-6V
500mA
BHFUSE
F1
2
EVQPUC02K
Panasonic
RSW1, RSW2
37
1N5819W
TWGMC
D1, D2, D3, D4, D5, D6, D7, D8 +29
1
XL-3216UBC
BLUE
XINGLIGHT
D37
1
BSD3C051V
BORN
D38
1
XL-3216SURC
RED
XINGLIGHT
D39
2
HPZ1608U121-2R0TF
HPZ1608U121
Sunlord
L1, L2
1
MLF1608E100JT000
10uH
TDK
L3
2
0603CG120J500NT
12pF
FH (Guangdong Fenghua Advanced Tech)
C1, C4
2
CL10A475KO8NNNC
4.7uF
Samsung Electro-Mechanics
C2, C5
1
CL10B102KB8NNNC
1nF
Samsung Electro-Mechanics
C3
2
RC0603FR-075K1L
5.1K
YAGEO
R1, R2
2
RC0603FR-071KL
1K
YAGEO
R3, R6
Show 3 more
QtyPartRefs
1
0603WAF1002T5E
10K
UNI-ROYAL(Uniroyal Elec)
R4
1
0603WAF1004T5E
1M
UNI-ROYAL(Uniroyal Elec)
R5
1
RC0603FR-07100KL
100K
YAGEO
R7

Le oeuf v2 design files

The KiCad project lives in the eggsworks/le-oeuf-v2 repository on GitHub; these links point at the commit this page was built from.

Le oeuf v2: common questions

What microcontroller does the Le oeuf v2 use?

The Le oeuf v2 is built around the C356849, from the Nordic nRF family.

How big is the Le oeuf v2 PCB?

The Le oeuf v2 measures 215.1 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Le oeuf v2?

65 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Le oeuf v2 design files?

From the eggsworks/le-oeuf-v2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Le oeuf v2 design in my own project?

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

Can I test firmware for the Le oeuf v2 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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