2 layers346.1 × 96.6 mm
KeyBoard
shreejita56/Split-Keyboard
SO I made a custom 60 % layout Split Mechanical keyboard which has a rotor encoder at the top for brightness controlee as well . It is based on Xiao rp2040 .
205 parts
2 layers330 × 123 mm
Riptide
SharKingStudios/Riptide18An Infinitely Expandable Keyboard built during Hackclub Highway!
- Size
- 330 × 123 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 270
- Nets
- 203
- Pads
- 1,039
- Tracks, vias
- 3,214, 272
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Feb 2025
- Updated
- 9 Aug 2025
Overview
Riptide is an open-source printed circuit board by SharKingStudios, from the SharKingStudios/Riptide repository on GitHub, published under the MIT licence. It is a 2-layer board of 330 × 123 mm with 270 parts on 203 nets, routed with 3,214 tracks and 272 vias.
It is built around the PCA9555D, SK6812MINI-E and X6511FRS-05-C85D30. Its parts include 146 diodes, 85 switches, 2 resistors and 2 ICs. It belongs with the RP2040 boards of this library.
Main components
3
PCA9555D
SO-24-300milReset function、Cascading and address extension SO-24-300mil I/O Expanders ROHSNXP SemiconductorsI/O Expanders
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
X6511FRS-05-C85D30
SMD,P=2.54mm,卧贴-40℃~+105℃ 1 1x5P 2.54mm 3A 5P 8.5mm Side Square Hole Surface Mount, Right Angle SMD,P=2.54mm,卧贴 Female Headers ROHSXKB ConnectionFemale Headers
README
README.mdRiptide – The Infinitely Expandable Keyboard
My Massive Glowing Submission to Highway
Renders
Visuals because everyone loves eye candy.
What is this?
It's a custom keyboard built for infinite expansion through its module ports! It uses an Orpheus Pico, QMK firmware, and even more LEDs. The expansion modules could be literally anything! From a screen, a rechargeable battery, a buzzer, or even more LEDs!
Features:
- Keycool84 Layout – Possibly the best?
- Rotary Encoder – Twist for volume, scroll, or secret hacker functions.
- Clickable Encoder Button – Because sometimes, twisting isn’t enough.
- 61 SK6812 Mini LEDs – ✨Almost blinding✨
- Literally Infinite Expandability – Custom designed module slots that support chaining submodules together!
How It Works:
The infinitely expandable modules were built using an I2C bus! Also since the Orph Pico knows which modules are plugged in, certain modules could unlock further functionality from another! Like a button module being able to activate a haptic feedback (vibration) module. (This isnt built in yet // Software still WIP)
Each module slot has a 5V, EN, GND, SDA, and SCL lines. After a module is plugged in and ready to work it will pull its EN line high to 3.3V, letting the Pico know there is something there in that expansion slot!
Why?
I built this keyboard for Highway—an awesome Hack Club YSWS project mainly run by Alex Ren. (I helped run this event as one of the project reviewers!) I wanted to create something that wasnt just useful, but also super cool! Thats why I went with creating my own expansion support instead of just adding a USB hub and calling it a day.
BOM
All the bits and pieces needed can be found here.
| Name | Amount | Price | Source |
|---|---|---|---|
| PCB | 1 (5) | 33.74 | JLCPCB |
| Keycaps | 1 | 24.99 | Amazon |
| Gateron Red Keyswitches | 1 | 34.99 | Amazon |
| Gateron Clear Stabs | 1 | 11.99 | Amazon |
| Diodes | 85 (100) | 6.99 | Amazon |
| 11"x14" Acrylic | 1 (2) | 11.99 | Amazon |
| SK6812MINI-E LEDs | 61 (65) | 3.84 | LCSC |
| PCA9555D | 1 | 1.75 | LCSC |
| X6511FRS-05-C85D30 | 14 (15) | 2.46 | LCSC |
| 18ga Steel Plate | 1 | 0.00 | PRICE Industries |
| Orpheus Pico | 1 | 0.00 | Me |
| OLED | 1 | 0.00 | Old Hackpad Kit |
| EC11 Rotary Encoder | 1 | 0.00 | Old Hackpad Kit |
| M2.5 10mm Standoffs | 12 | 0.00 | Me |
| M2.5 3mm Screw | 12 | 0.00 | Me |
| 4.7K THT Resistor | 2 | 0.00 | Me |
| Shipping | N/A | 11.26 | LCSC |
| Total | — | 130.00 | — |
Contribute
Want to make it better? Open a PR, suggest a feature, or just yell at me on GitHub.
Disclaimer
This project is 100% free, open-source, and powered by vibes. If it breaks, explodes, or opens a black hole, that’s on you.
Parts
270| Qty | Value | Footprint | References |
|---|---|---|---|
| 85 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D10, D11, D12, D102, D105, D106, D115, D116, D117, D118, D119, D120, D121, D122, D123 +69 |
| 73 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_1.00u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +57 |
| 61 | SK6812MINI | Custom:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +45 |
| 20 | LOGO | LOGO | G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G*** +4 |
| 14 | X6511FRS-05-C85D30 | Custom:HDR-SMD_5P-P2.54-H-F_X6511FRS-19-C85D30 | H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14 |
| 3 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_1.25u | SW75, SW76, SW77 |
| 2 | 4.7K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2 |
| 2 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_1.50u | SW32, SW45 |
| 2 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_1.75u | SW47, SW72 |
| 2 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_2.25u | SW59, SW61 |
| 1 | PCA9555D | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW85 |
| 1 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_PCB_2.00u | SW30 |
| 1 | SW_Push | Custom Keyboard Parts:SW_Cherry_MX_6.25u_PCB | SW78 |
| 1 | ~ | Custom:SSD1306-0.91-OLED-4pin-128x32 | U2 |
Questions
How big is the Riptide PCB?
It measures 330 × 123 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Riptide use?
270 parts, built around the PCA9555D, SK6812MINI-E and X6511FRS-05-C85D30. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Riptide KiCad files?
From the SharKingStudios/Riptide repository on GitHub, at the commit this page was made from: the board is PCB/Riptide.kicad_pcb and its schematic PCB/Riptide.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Riptide design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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