HardLabs

Helix

MakotoKurauchi·helix·PCB/beta/helix.kicad_pcb

Helix PCB layout, top view — open source board by MakotoKurauchi

About the Helix PCB

Helix is an open source PCB design by MakotoKurauchi, published on GitHub under the MIT license. It is a 2-layer board measuring 132 × 94 mm, with 120 components from 20 distinct parts.

Other key parts include the ProMicro and SK6812mini. By type, the board carries 33 ICs, 33 switches, 32 diodes, 11 jumpers, 6 connectors and 2 resistors.

It belongs with the keyboards designs in this gallery.

From the project

A compact split ortholinear keyboard.

Build Guide - JP, EN Firmware - JP, EN * Usage - JP, EN

Helix, from the project README
From the project README

Main components on the Helix

ProMicroSK6812mini

Helix bill of materials (BOM)

120 components, 20 distinct parts.

QtyPartRefs
1
ProMicro
U1
32
SK6812mini
U2, U3, U4, U5, U6, U7, U8, U9 +24
1
MJ-4PP-9
J1
2
CONN_01X01
P1, P2
1
OLED
P3
1
LED
P4
1
ICSP
P5
1
Val**
1PIN
1
VAL**
HOLE_3M
1
VAL**
HOLE_M2
1
JPC2
JP1
2
JP2
JP2, JP3
2
GND
JP4, JP11
2
VCC
JP5, JP10
2
SCL
JP6, JP9
2
SDA
JP7, JP8
32
SW_PUSH
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +24
1
Reset
SW33
32
D
D1, D2, D3, D4, D5, D6, D7, D8 +24
2
R
R1, R2

Helix design files

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

Helix: common questions

How big is the Helix PCB?

The Helix measures 132 × 94 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Helix?

120 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Helix design files?

From the MakotoKurauchi/helix repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Helix design in my own project?

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

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