HardLabs

Nack

farfalleflickan·nack·nack_v1/hardware/nack.kicad_pcb

Nack PCB layout, top view — open source STM32 board by farfalleflickan
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About the Nack PCB

Nack is an open source STM32 PCB design by farfalleflickan, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 247.7 × 84 mm, with 240 components from 22 distinct parts.

Its main chip is the STM32F303CCT6, from the STM32 family. Other key parts include the LM1108SF-3.3. By type, the board carries 63 capacitors, 57 diodes, 53 switches, 52 LEDs, 8 resistors and 2 ICs.

It belongs with the keyboards designs in this gallery.

From the project

nack keyboard

You like my work? Feel free to donate :) [](https://www.paypal.com/donate?hostedbuttonid=YEAQ4WGKJKYQQ)

Nack, from the project README
From the project README

Main components on the Nack

STM32F303CCT6LM1108SF-3.3

Nack bill of materials (BOM)

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

QtyPartRefs
1
STM32F303CCT6
STM32F303CCTx
STMicroelectronics
U1
1
LM1108SF-3.3
MCP1700-3302E_SOT23
HTC Korea TAEJIN Tech
U2
1
KRC106S-RTK/P
KRC106S
KEC Semicon
Q1
1
1C208000CC0AA
8MHz
KDS Daishinku
Y1
1
TYPE-C16PIN
USB_C_Receptacle_USB2.0
SHOU HAN
J3
2
KLJ-1102
Buzzer
KELIKING
LS1, LS2
52
SW_Push_90
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +44
1
SW_Push
SW14
52
WS2812C-2020
Worldsemi
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +44
52
LL4148
LGE
D1, D2, D3, D4, D5, D6, D7, D8 +44
3
SL54B
Diode
Microdiode Electronics
D14, D54, D55
2
TPD4E02B04DQAR
Texas Instruments
D56, D57
56
CL21B104KBCNNNC
100nF
Samsung Electro-Mechanics
C1, C2, C3, C4, C5, C6, C7, C8 +48
2
CL21C220JBANNNC
22pF
Samsung Electro-Mechanics
C53, C56
2
CL21B105KBFNNNE
1uF
Samsung Electro-Mechanics
C58, C59
1
CL21A106KQFNNNE
10uF
Samsung Electro-Mechanics
C61
1
T490A107M006ATE800
100uF
KEMET
C62
1
TCC0805X7R472K500DT
4.7nF
CCTC
C63
2
0805WAD
1M
Uniroyal Elec
R1, R8
2
0805WAD
5.1k
Uniroyal Elec
R2, R3
Show 2 more
QtyPartRefs
2
0805WAD
22
Uniroyal Elec
R4, R5
2
0805WAD
1.5k
Uniroyal Elec
R6, R7

Nack design files

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

Nack: common questions

What microcontroller does the Nack use?

The Nack is built around the STM32F303CCT6, from the STM32 family.

How big is the Nack PCB?

The Nack measures 247.7 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nack?

240 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 Nack design files?

From the farfalleflickan/nack repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Nack design in my own project?

Yes, under the terms of its AGPL-3.0 license, which farfalleflickan chose for the repository.

Can I test firmware for the Nack without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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