HardLabs

Chocolate

JustAGlitchFL·Chocolate·Chocolate/Chocolate.kicad_pcb

Chocolate PCB layout, top view — open source Nordic nRF board by JustAGlitchFL

About the Chocolate PCB

Chocolate is an open source Nordic nRF PCB design by JustAGlitchFL, published on GitHub. It is a 2-layer board measuring 153.6 × 111.9 mm, with 253 components from 64 distinct parts.

Its main chip is the XIAO-nRF52840-Plus-SMD, from the Nordic nRF family. By type, the board carries 86 LEDs, 75 diodes, 74 switches, 16 capacitors and 2 ICs.

It belongs with the keyboards designs in this gallery.

From the project

Redemption arc keyboard after Cacao this summer

Chocolate bill of materials (BOM)

253 components, 64 distinct parts.

QtyPartRefs
2
~
U1, U2
1
Esc
SW1
1
1
SW2
1
2
SW3
1
3
SW4
1
4
SW5
1
5
SW6
1
6
SW7
2
tab
SW8, SW15
1
q
SW9
1
w
SW10
1
e
SW11
1
r
SW12
1
t
SW13
8
-
SW14, SW21, SW28, SW34, SW44, SW55, SW71, SW72
1
a
SW16
1
s
SW17
1
d
SW18
1
f
SW19
1
g
SW20
Show 44 more
QtyPartRefs
2
shift
SW22, SW63
1
z
SW23
1
x
SW24
1
c
SW25
1
v
SW26
1
b
SW27
2
ctrl
SW29, SW59
2
fn
SW30, SW54
1
win
SW31
2
alt
SW32, SW49
1
7
SW33
3
space
SW35, SW39, SW75
1
y
SW36
1
h
SW37
1
n
SW38
1
8
SW40
1
u
SW41
1
j
SW42
1
m
SW43
1
9
SW45
1
i
SW46
1
k
SW47
1
,
SW48
1
0
SW50
1
o
SW51
1
l
SW52
1
.
SW53
1
p
SW56
1
;
SW57
1
/
SW58
1
+
SW60
1
[
SW61
1
'
SW62
1
left
SW64
1
bksp
SW65
1
]
SW66
1
enter
SW67
1
up
SW68
1
down
SW69
1
\
SW70
1
right
SW73
86
SK6812MINI-E
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +78
75
D
D1, D2, D3, D4, D5, D6, D7, D8 +67
16
C
C1, C2, C3, C4, C5, C6, C7, C8 +8

Chocolate design files

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

Chocolate: common questions

What microcontroller does the Chocolate use?

The Chocolate is built around the XIAO-nRF52840-Plus-SMD, from the Nordic nRF family.

How big is the Chocolate PCB?

The Chocolate measures 153.6 × 111.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Chocolate?

253 components, from 64 distinct parts. The full bill of materials is listed on this page.

Where can I download the Chocolate design files?

From the JustAGlitchFL/Chocolate repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Chocolate design in my own project?

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

Can I test firmware for the Chocolate 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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