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Corne Chocolate

Corne Chocolate Low-profile Hotswap Split Ergo 40% Kit

€33.88

Build your very own low profile hotswap split ergo 40% custom keyboard from scratch!

Easy to build, uses Pro Micro (or compatible) controllers.

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In Stock

  • Layout *

  • Case Type *

    Tenting case includes a 3 mm bottom plate with tenting lugs for M5 tenting hardware (see below in add-ons)

  • Switch Plate Colour *

  • Mid-layer *

    Optional mid layer fills the gap between the PCB and the bottom plate. 3 mm mid layer allow putting thin batteries underneath the PCB.

  • Bottom Plate *

  • *

    With mid-layer, the bottom plate will be 3 mm thick. Smoky Grey 3 mm acrylic is a bit lighter than the 2 mm one.

  • Acrylic Colour (3 mm) *

  • Add-ons *

    nice!nano V2 Wireless Controller (Sold Out)

    €25.05

    Powerful wireless Pro Micro drop-in replacement

    AddRemove

    nice!nano V2
    nice!nano V2 Front
    nice!nano V2 Back

    nice!nano V2 Wireless Controller

    (3 customer reviews)

    €25.05

    Powerful wireless Pro Micro drop-in replacement

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    ×

    Frood RP2040 Pro Micro Controller

    €9.98 – €14.52

    Powerful and affordable RP2040-based Pro Micro drop-in replacement

    AddRemove

    Sale!
    Frood Rev5 Black
    Frood Rev5 Black Back
    Frood Rev5 White
    Frood Rev5 White Back
    Frood Rev5 Purple
    Frood Rev5 Purple Back
    Frood Rev5 Yellow
    Frood Rev5 Yellow Back
    Frood Rev5 All Colours
    Frood size comparison

    Frood RP2040 Pro Micro Controller

    (2 customer reviews)

    €9.98 – €14.52

    Powerful and affordable RP2040-based Pro Micro drop-in replacement

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    ×

    Controller Sockets/Pins/Headers

    €0.48 – €9.68

    Various sockets / pins for Pro Micro/nice!nano/Frood and similar controllers Pack for one controller

    AddRemove

    Mill Max Sockets + Pins
    Mill Max 315 sockets
    Mill Max 3320 Pins

    Controller Sockets/Pins/Headers

    €0.48 – €9.68

    Various sockets / pins for Pro Micro/nice!nano/Frood and similar controllers

    Pack for one controller

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    ×

    nice!view Power-Efficient 1″ LCD Display

    €24.20

    Extremely power-efficient and fast LCD display

    AddRemove

    nice!view

    nice!view Power-Efficient 1″ LCD Display

    €24.20

    Extremely power-efficient and fast LCD display

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    ×

    OLED Display Module 0.91″ 128×32

    €3.75 – €4.84

    0.91" OLED module with 128x32 pixel resolution

    AddRemove

    Sale!
    OLED 0.91" Black
    OLED 0.91" Black Back

    OLED Display Module 0.91″ 128×32

    €3.75 – €4.84

    0.91″ OLED module with 128×32 pixel resolution

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    ×

    Low Profile OLED Socket (1 pc)

    €1.09

    Low profile socket good for socketing OLED screens with standard (thick, square) header pins Includes a single 4-pin one row socket.

    AddRemove

    OLED Sockets

    Low Profile OLED Socket (1 pc)

    €1.09

    Low profile socket good for socketing OLED screens with standard (thick, square) header pins

    Includes a single 4-pin one row socket.

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    ×

    SK6812 (WS2812B) RGB LED Modules (10 pcs) – SK6812 MINI (3535) (Sold Out)

    €1.21

    3.5x3.5 mm

    AddRemove

    SK6812 MINI

    SK6812 (WS2812B) RGB LED Modules (10 pcs) – SK6812 MINI (3535)

    €1.21

    Type: SK6812 MINI (3535)

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    ×

    Plain/Braided/Metal TRRS cable (Sold Out)

    €3.87 – €6.05

    TRRS cable for use with split keyboards

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    TRRS cables plastic
    TRRS cables braided
    TRRS cable metal braided
    TRRS black coiled
    TRRS cable braided pink
    TRRS cable braided blue
    TRRS cable braided gold
    TRRS cable white
    TRRS Cable Purple 46 cm
    TRRS cable orange
    TRRS Cable Black 28 cm
    TRRS Cable Black Plain 26 cm
    TRRS Cable Red 20 cm

    Plain/Braided/Metal TRRS cable

    €3.87 – €6.05

    TRRS cable for use with split keyboards

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    ×

    Tenting/Tilting Hardware

    €4.84

    Nuts and bolts for use as legs with our tenting kits Includes bolts and nuts for both halves of a split keyboard (2 of each 35, 45, 60 and 70 mm M5 bolts + 16x M5 half nuts)

    AddRemove

    Tenting Hardware Hex Head
    Tenting Hardware Assembly

    Tenting/Tilting Hardware

    €4.84

    Nuts and bolts for use as legs with our tenting kits

    Includes bolts and nuts for both halves of a split keyboard (2 of each 35, 45, 60 and 70 mm M5 bolts + 16x M5 half nuts)

    Read more…

    ×

    Lithium-Polymer Battery – 301230 (110 mAh)

    €3.57

    ⚠Batteries can only be shipped within the EU! 🇪🇺 32 x 11.5 x 3.3 mm, 110 mAh, 2.2 g 20 mm lead, no plug

    AddRemove

    Li-Po Battery 301230 110 mAh

    Lithium-Polymer Battery – 301230 (110 mAh)

    €3.57

    Size: 301230 (110 mAh)

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    ×
  • Soldering

    We can solder the kit for you. It will add 3-5 days to the order processing time.
    Price is just for the service, no extra parts included.
    If you want the controllers to be removable, please include 2 packs of controller sockets + pins.

  • *

    Sorry, we don't provide the full in-switch RGB module soldering service. The modules are a big pain to solder in this kit and we could not guarantee good reliability.

Product total

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Grand total

SKU: K-CORNE-CHOC-BLK Categories: , Tags: , , , , ,

Designed by Kosuke Adachi (a.k.a. foostan). The designer receives a portion of the proceeds from every sale.

This is version v2.4 modified by 42. Keebs to include a power switch and battery connector for wireless operation and native nice!view support.

Build your very own custom split keyboard from scratch!

  • Split 12×3 + 6 (40%-ish) ortho/ergo layout with an OLKB MX spacing (19.00×19.00 mm)
  • Supports Kailh Choc V1 switches only
  • Uses Kailh Choc hotswap sockets
  • Supports in-switch RGB LEDs and RGB underglow
  • Optional OLED screens
  • Includes a power switch and battery pads on the PCB (v2.3)
  • Native support for the power-efficient nice!view screens (v2.4)
  • Optional mid-plate available for a neater case without gaps
  • Fairly easy to build – based on Pro Micro controllers, but uses SMD diodes
  • Tinned lead-free finish, black solder mask

⚠️💀 Warning: Never plug/unplug the TRRS cable while the keyboard is powered! It could damage the data pin of the controller. 💀⚠️

Please note, the RGB pin had to be changed to pin 14 (B2 / GPIO23) for native nice!view support. RGB is not supported out of the box when using the nice!nano (minor modification required), and custom Vial firmware is required for RGB support using the Frood (available soon from our firmware page).

Original build guide in the GitHub repository (TODO: add information about modifications)

Kit contents

  • 2x main PCB
  • 2x 2 mm acrylic switch plate (clear or smoky grey)
  • Optional 2 or 3 mm foam mid-layer (to fill the gap between the PCB and the bottom plate)
  • 2x 2 mm or 3 mm acrylic bottom plate (clear or smoky grey)
  • 44x SMD diodes (42 + 2 spare)
  • 42x Kailh Choc V1 hotswap socket
  • 2x TRRS socket
  • 2x SMD power switch
  • 2x Reset switch
  • Brass standoffs and screws
  • Acrylic covers

Required parts not included in the kit

  • 2x Pro Micro-compatible controllers (Frood, nice!nano etc.)
  • 42x Kailh Choc V1 switches
  • TRRS cable (for a wired build)

Optional parts not included in the kit

  • Controller sockets/pins (to make them removable)
  • nice!view screens
  • OLED screens + OLED sockets
  • 12x SK6812MINI in-switch RGB LEDs for underglow
  • 42x SK6812MINI in-switch RGB LEDs
Weight 0.26 kg
Stock Status

Coming Soon

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