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Bancouver40 cfx

ChrisChrisLoLo·bancouver40·pcb/bancouver40_cfx/bancouver40_cfx.kicad_pcb

Bancouver40 cfx PCB layout, top view — open source AVR/Arduino board by ChrisChrisLoLo
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About the Bancouver40 cfx PCB

Bancouver40 cfx is an open source AVR/Arduino PCB design by ChrisChrisLoLo, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 170 × 69.4 mm, with 98 components from 14 distinct parts.

Its main chip is the ATmega32U4-M, from the AVR/Arduino family. By type, the board carries 40 switches, 40 diodes, 7 capacitors, 6 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

A 4x10 CFX spaced low-profile mechanical keyboard.

A 4x10 CFX spaced low-profile mechanical keyboard.

Uncompromisingly small. Unabashedly uwu.

Also contains the source code for the 4x12 minipeg48 and the 4x4 kowgary16.

This keyboard also has the design files needed to order your own accompanying 3D-printed/Aluminum CNC case!

Additionally, you should need - 40 (plus spare) kailh choc switches. Avoid Red/White/Brown switches as they can be pretty rattly. Pro Red/Silver/Sunset switches are good places to start. - 40 (plus spare) 1u CFX keycaps

Main components on the Bancouver40 cfx

ATmega32U4-M

Bancouver40 cfx bill of materials (BOM)

98 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATmega32U4-M
U1
1
16MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
1
SW_Push
B1
1
500mA
F1
40
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +32
40
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +32
2
22pF
C1, C2
1
1uF
C3
3
0.1uF
C4, C5, C6
1
10uF
C7
2
10k
R1, R6
2
5k1
R2, R3
2
22
R4, R5

Bancouver40 cfx design files

The KiCad project lives in the ChrisChrisLoLo/bancouver40 repository on GitHub; these links point at the commit this page was built from.

Bancouver40 cfx: common questions

What microcontroller does the Bancouver40 cfx use?

The Bancouver40 cfx is built around the ATmega32U4-M, from the AVR/Arduino family.

How big is the Bancouver40 cfx PCB?

The Bancouver40 cfx measures 170 × 69.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bancouver40 cfx?

98 components, from 14 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 Bancouver40 cfx design files?

From the ChrisChrisLoLo/bancouver40 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Bancouver40 cfx design in my own project?

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

Can I test firmware for the Bancouver40 cfx 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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