Helix
About the Helix PCB
Helix is an open source PCB design by ginjake, published on GitHub. It is a 2-layer board measuring 132 × 94 mm, with 155 components from 21 distinct parts.
Other key parts include the ProMicro, 74HC4051 and AD8616. By type, the board carries 65 switches, 36 resistors, 32 inductors, 8 jumpers, 6 ICs and 2 transistors.
From the project
商用利用したい場合は twitter @sirojake にご相談ください please contact me for commercial use. ## developer ginjake
商用利用したい場合は twitter @sirojake にご相談ください please contact me for commercial use. ## developer ginjake
こちらのビルドログも参考になるので、目を通しておくと良いかもしれません https://orumin.blogspot.com/2020/10/helix-ec-helix-niz-ver.html
OLED,TRRSジャック等のHelixの共通部分については省略します。 LEDについてはbacklightのみの対応です。 (Varmilo版とラバードーム版で数が異なります)
絶縁テープの上から、写真のようにジャンパしていきます。 この作業は左手側のみで、右手は不要です。
また、絶縁テープを貼らず、ProMicro側を表裏逆転させる方法もありますが OLED用のスペーサーの高さが変わってしまうのであまりおすすめしません。
Main components on the Helix
Helix bill of materials (BOM)
155 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ProMicro | ProMicro_v3.5 | U1, U38 |
| 2 | 74HC4051 | SSOP16 | U34, U35 |
| 2 | AD8616 | MSOP8 | U36, U37 |
| 2 | 2SC2712 | 2SC2712 | Q1, Q2 |
| 1 | MJ-4PP-9 | MJ-4PP-9 | J1 |
| 1 | OLED | OLED | P3 |
| 1 | VAL** | HOLE_M2_TH | HOLE_3M |
| 1 | VAL** | HOLE_M2 | HOLE_M2 |
| 2 | GND | Jumper | JP4, JP11 |
| 2 | VCC | Jumper | JP5, JP10 |
| 2 | SCL | Jumper | JP6, JP9 |
| 2 | SDA | Jumper | JP7, JP8 |
| 64 | SW_PUSH | MX_Hotswap-1.00u-irreversible | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +56 |
| 1 | Reset | ResetSW | SW33 |
| 32 | SK6812MINI | SK6812MINI_narrow-irreversible2 | L1, L2, L3, L4, L5, L6, L7, L8 +24 |
| 2 | 220pF | C_0603_1608Metric | C1, C2 |
| 12 | 200Ω | R_0603_1608Metric | R1, R2, R3, R4, R5, R15, R21, R32 +4 |
| 14 | 100kΩ | R_0603_1608Metric | R6, R7, R8, R9, R10, R11, R12, R25 +6 |
| 4 | 10kΩ | R_0603_1608Metric | R13, R17, R19, R23 |
| 4 | 1kΩ | R_0603_1608Metric | R14, R18, R20, R24 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 51-100kΩ | R_0603_1608Metric | R16, R22 |
Helix design files
The KiCad project lives in the ginjake/ec_helix_build repository on GitHub; these links point at the commit this page was built from.
- Layouthelix.kicad_pcb
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?
155 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Helix design files?
From the ginjake/ec_helix_build 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?
The repository has no license, so all rights stay with ginjake. Use it as a reference, and ask the author before reusing the design.
