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feat: switch to CX40 dongle board and ZMK main (v0.4)#10
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Swap board from raytac_mdbt50q_rx to raytac_mdbt50q_cx_40 and point zmk-component-raytac-dongle to perrwa fork with CX40 support. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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[WIP] Test add cx40 and zmk0.4 changes
feat: switch to CX40 dongle board and ZMK main (v0.4)
Apr 12, 2026
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Pull request overview
Updates this ZMK config to test against upcoming ZMK v0.4 by switching all upstream references to main, and changes the dongle target to the CX-40 board variant.
Changes:
- Update
config/west.ymlto track ZMKmainand switch the Raytac dongle module remote toperrwa(also onmain). - Update
build.yamlto build the dongle firmware forraytac_mdbt50q_cx_40. - Update CI/release workflows to use ZMK’s reusable build workflow from
@main.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 6 comments.
| File | Description |
|---|---|
| config/west.yml | Moves ZMK/module revisions to main and switches dongle module remote to perrwa. |
| build.yaml | Changes dongle board in the build matrix to raytac_mdbt50q_cx_40. |
| .github/workflows/build.yml | Updates reusable workflow ref from @v0.3 to @main. |
| .github/workflows/release.yml | Updates reusable workflow ref from @v0.3 to @main. |
- build.yaml: raytac_mdbt50q_rx → raytac_mdbt50q_cx_40 - config/west.yml: zmk v0.3 → main, raytac dongle rschenk/v0.3 → perrwa/main - workflows: reusable workflow @v0.3 → @main Agent-Logs-Url: https://github.com/perrwa/zmk-config/sessions/74bb02a0-3a79-4f40-9a3a-15d2aa6edbfc Co-authored-by: perrwa <7255333+perrwa@users.noreply.github.com>
- nice_nano_v2 → nice_nano//zmk (revision-based naming + ZMK variant) - raytac_mdbt50q_cx_40 → mdbt50q_cx_40 (vendor prefix is now directory, not board name) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Zephyr 4.1's BLE controller + USB stack exceeds 256 KB RAM on this board without tuning. Disable logging, shrink BLE buffers, and reduce stack/heap sizes to fit within nRF52840 SRAM. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This reverts commit 5030f7a.
Add mdbt50q_rx + corne_dongle and mdbt50q_rx + settings_reset to build matrix to determine if Zephyr 4.1 RAM overflow affects all standalone nRF52840 boards or only CX-40. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
RX test complete — both boards need the extend variant fix. RX fails with Missing ZMK Compat (not RAM overflow). Results documented in perrwa/zmk-component-raytac-dongle#5. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Update build.yaml board name: mdbt50q_cx_40 → raytac_mdbt50q_cx_40_dongle//zmk Point west.yml to perrwa/fix-ram-overflow branch for testing. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Upstream Zephyr board raytac_mdbt50q_cx_40_dongle doesn't exist in ZMK's Zephyr fork (v4.1.0+zmk-fixes). Reverting to standalone board with ZMK_BOARD_COMPAT + RAM tuning in the dongle component. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Dongle: MDBT50Q-RX → MDBT50Q-CX-40, rschenk → perrwa fork - Board names: raytac_mdbt50q_rx → mdbt50q_cx_40, nice_nano_v2 → nice_nano//zmk - Release trigger: tag push v* → push to main - West manifest: ZMK v0.3 → ZMK main (v0.4) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Owner
|
✅ Build and draw both pass on ZMK v0.4 (main). CX-40 dongle config validated — closing since this was a test branch. |
perrwa
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enhancement
perrwa
removed their request for review
April 13, 2026 03:34
unified board (nRF52840). Keep CX40 dongle as BLE central with corne_dongle shield unchanged. Changes: - Add boardsource/wireless-corne_zmk_config as west module - Update raytac dongle pin to latest main - Add blecorne.keymap wrapper (#include corne.keymap) - Add blecorne.conf symlink to corne.conf - Update build.yaml: blecorne_left/right with central=n override Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Symbol was removed in ZMK 0.4. RGB underglow=n is sufficient to disable LED driver. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Test branch combining CX-40 dongle support with ZMK main (upcoming v0.4). Rebased on
perrwa/cx40and points all ZMK references atmainbranch.build.yaml: Board names updated for ZMK v0.4 HWMv2 (nice_nano_v2→nice_nano//zmk,raytac_mdbt50q_rx→mdbt50q_cx_40)config/west.yml: ZMKv0.3→main, raytac dongleperrwa/add-cx40→perrwa/fix-ram-overflow@v0.3→@mainin bothbuild.ymlandrelease.ymlRelease workflow trigger
release.ymlnow triggers on push tomain(auto-builds firmware on merge) plus manualworkflow_dispatchwith an optional tag input for versioned releases. This replaces the previous tag-push (v*) trigger.main— intentional for testing. Pin tov0.4tags once ZMK cuts a release.