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Corne Keyboard v4.1 is released

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Ryosuke Kawamura
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On May 7, 2024, Corne creator foostan updated his official X to announce the release of Corne Keyboard v4.1.

Corne Keyboard v4.1 fixes

  • Fixed a problem that made it unusable after miniaturization
    • In v4.0.0, there was a problem that GND floated when the edge of the board was folded, making it unusable, but this problem has been fixed since v4.1.0.
  • Change of parts for TRRS connector
    • The TRRS connector ( ST-0277D00-052-142 ) used in v4.0.0: has been discontinued and replaced by the PJ-399B-6A. As a result, from v4.1.0, TRS (3 poles) will be used for left-right communication. TRS (3 poles) is not supported in v4.0.0.

*If a board is manufactured using the V4.1.1 left-right intercommunication parts selected by default when ordering a board, it will not be compatible with a case created based on a V4.0.0 board. For products sold by Yousha-Kobo, the parts will be changed to compatible parts before being sold. Also, if you are designing a case, you may want to allow some margin for the TRS jack, as its position may be severe.

After all, the most significant modification is the ability to miniaturize.

Previously, there was a problem with the board not working when the edge of the board was folded, but now that this has been corrected, many people will be able to get their long-awaited mini conversion.

In addition, the TRRS jacks used to connect the left and right sides are no longer in production, so they have been replaced with similar parts.

There are no changes to the case or board due to the connector change, only the firmware has been modified.

This also fixes the firmware.

04896b180671e796d08b0eab40a61080
https://github.com/foostan/crkbd/blob/main/docs/firmware/rev4/firmware_jp.md

The currently out-of-stock inventory of Yousha Kobo is also expected to be added as soon as it is ready.

9b2c0fcc1b6da3f3abec9a838e6f4b73
https://shop.yushakobo.jp/collections/keyboard
Related Reading
DSC 8658
【通常利用には問題なし】Corne V4で「mini化」による不具合が報告される 2024年4月8日、Corne設計者の @foostan 氏は自身のXを更新し、先日リリースされたCorne V4を「mini化」すると動作が不能になる不具合が見つかったことを公表しました。 …

Information reference: https: //github.com/foostan/crkbd/releases/tag/v4.1

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Avatar of 河村 亮介 Ryosuke Kawamura Greenkeys chief editor

Ryosuke Kawamura is the Editor-in-Chief of Greenkeys and the founder of GreenEchoes Studio.

He covers mechanical keyboards, custom keyboards, and input devices through reviews, interviews, hands-on testing, photography, and editorial work. He has reviewed more than 100 products and regularly reports on JIS-layout compatibility and trends in the Japanese keyboard market.

He also founded the Japan Layout Alliance (JLA), an industry collaboration initiative aimed at improving compatibility for Japanese-layout keyboards.

Greenkeys values editorial independence and transparency. Product samples, advertising relationships, and affiliate links are disclosed within each article.

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