HardLabs

Theboulevard

joedinkle·eyeohdesigns·keyboards/theboulevard/pcb-files/main-pcb/theboulevard.kicad_pcb

Theboulevard PCB layout, top view — open source AVR/Arduino board by joedinkle

About the Theboulevard PCB

Theboulevard is an open source AVR/Arduino PCB design by joedinkle, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 257.2 × 85.7 mm, with 154 components from 20 distinct parts.

Its main chip is the ATMEGA32U4-MUR, from the AVR/Arduino family. By type, the board carries 87 relays, 52 diodes, 6 capacitors, 4 resistors, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Files for EOD keyboards

Directions for assembling the top PCB can be found here

If using plate foam and a 6.25u or 7u bar, I recommend removing this portion of the foam to ensure smooth operation of the spacebar.

Use screws that require an allen key for screwing the bottom case to the top case. All other screws are the same.

Main components on the Theboulevard

ATMEGA32U4-MUR

Theboulevard bill of materials (BOM)

154 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-MUR
ATMEGA32U4
U1
1
AWSCR-16.00CV-T
Resonator
Y1
1
Conn_01x04_Female
J1
1
MTP220-1206R1
Conn_01x12_Male
J2
70
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +62
6
KEYSW
K152, K392, K412, K432, K502, K522
2
KEYSW
K262, K282
2
KEYSW
K422, K512
3
KEYSW
K452, K473, K483
1
KEYSW
K453
1
KEYSW
K462
1
KEYSW
K472
1
KEYSW
K482
1
RS-187R05A2-DSMTRT
SW_PUSH
SW1
52
1N4148W-7-F
D
D1, D2, D3, D4, D5, D6, D7, D8 +44
4
CC0603KRX7R6BB104
0.1u
C1, C2, C3, C4
1
CC0603KRX5R6BB475
4.7u
C5
1
CC0603KRX5R6BB105
1u
C6
2
RC0603JR-0722RL
22
R1, R2
2
RC0603JR-0710KL
10k
R3, R4

Theboulevard design files

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

Theboulevard: common questions

What microcontroller does the Theboulevard use?

The Theboulevard is built around the ATMEGA32U4-MUR, from the AVR/Arduino family.

How big is the Theboulevard PCB?

The Theboulevard measures 257.2 × 85.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Theboulevard?

154 components, from 20 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 Theboulevard design files?

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

Can I use the Theboulevard design in my own project?

Yes, under the terms of its GPL-3.0 license, which joedinkle chose for the repository.

Can I test firmware for the Theboulevard 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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