HardLabs

Barobord

sadekbaroudi·barobord·mx/barobord.kicad_pcb

Barobord PCB layout, top view — open source AVR/Arduino board by sadekbaroudi

About the Barobord PCB

Barobord is an open source AVR/Arduino PCB design by sadekbaroudi, published on GitHub. It is a 2-layer board measuring 243.9 × 136.5 mm, with 157 components from 21 distinct parts.

Its main chip is the ATMEGA32U4-A, from the AVR/Arduino family. Other key parts include the PRTR5V0U2X. By type, the board carries 92 diodes, 45 switches, 7 capacitors, 6 resistors, 2 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

I have spent a lot of time and money designing prototypes, testing, developing, etc. Any contributions would be greatly appreciated!

I have spent a lot of time and money designing prototypes, testing, developing, etc. Any contributions would be greatly appreciated!

If you don't want to, or can't afford to support me, please send me a message to let me know you've built one, along with pictures. Also, feel free to submit a pull request with pictures into this repository. I'd be happy to showcase your build.

Barobord, from the project README
From the project README

Main components on the Barobord

ATMEGA32U4-APRTR5V0U2X

Barobord bill of materials (BOM)

157 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-A
ATmega32U4-A
U1
1
PRTR5V0U2X
U2
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1
1
Pimoroni
J1
1
C99561
Polyfuse_Small
F1
40
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +32
1
SW_Push
SW41
2
RotaryEncoder_Switch
SW42, SW43
2
EVQWGD001
SW44, SW45
1
HRO-TYPE-C-31-M-12
USB1
1
SSD1306
Brd1
42
1N4148W
D1, D2, D3, D4, D5, D6, D7, D8 +34
40
SK6812MINI-E
D41, D42, D43, D44, D45, D46, D47, D48 +32
10
WS2812B
ws2812b
D83, D84, D85, D86, D87, D88, D89, D90 +2
1
1u
C1
2
22P
22p
C2, C3
3
0.1U
0.1u
C4, C6, C7
1
10U
10u
C8
2
10K
10k
R1, R4
2
22
R2, R3
Show 1 more
QtyPartRefs
2
5.1K
5.1k
R5, R6

Barobord design files

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

Barobord: common questions

What microcontroller does the Barobord use?

The Barobord is built around the ATMEGA32U4-A, from the AVR/Arduino family.

How big is the Barobord PCB?

The Barobord measures 243.9 × 136.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Barobord?

157 components, from 21 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 Barobord design files?

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

Can I use the Barobord design in my own project?

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

Can I test firmware for the Barobord without the hardware?

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

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