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Flinx

ayukmr·flinx·pcb/flinx.kicad_pcb

Flinx PCB layout, top view — open source board by ayukmr
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About the Flinx PCB

Flinx is an open source PCB design by ayukmr, published on GitHub under the MIT license. It is a 4-layer board measuring 252.5 × 68.8 mm, with 119 components from 18 distinct parts.

Other key parts include the TP4057. By type, the board carries 49 switches, 48 diodes, 6 test points, 6 capacitors, 6 resistors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

BL654-based low-profile 40% keyboard

The board uses Kailh Choc V2 switches, and purposely doesn't include any stabilizers. The PCB fits directly inside the case and is mounted with four screws. A USB-C port on the side is used for charging, and a switch turns the board on/off. Once turned on, the keyboard pairs over Bluetooth to send keystrokes.

This is intended as a small board mostly for travel, and as a low-profile version of the Monokei Neko.

Flinx, from the project README
From the project README

Main components on the Flinx

TP4057

Flinx bill of materials (BOM)

119 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TP4057
U1
1
32.768 kHz 9 pF
Y1
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J1
1
451-00001
ANT1
38
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +30
4
SW_Push
SW15, SW39, SW42, SW47
6
SW_Push
SW27, SW28, SW43, SW44, SW45, SW46
1
SW_SPDT
SW49
6
TestPoint
TP1, TP2, TP3, TP4, TP6, TP7
48
D
D1, D2, D3, D4, D5, D6, D7, D8 +40
1
12 pF
C1
1
10 pF
C2
1
100 nF
C3
3
10 uF
C4, C5, C6
2
22
R1, R2
2
5.1k
R3, R4
1
75k
R6
1
10k
R7

Flinx design files

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

Flinx: common questions

How big is the Flinx PCB?

The Flinx measures 252.5 × 68.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Flinx?

119 components, from 18 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 Flinx design files?

From the ayukmr/flinx 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 Flinx design in my own project?

Yes, under the terms of its MIT license, which ayukmr chose for the repository.

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