Ergohaven RMK Firmware v0.1.8-rc.1

K:04 host BLE power-saving test

This prerelease contains standalone firmware for K:04, K:04 Mini, and K:04 Micro.

Changes

• After 2 minutes without input, the host BLE link switches to low-duty connection parameters without disconnecting.
• After the selected timeout (10 minutes to 5 hours, 30 minutes by default), the keyboard fully disconnects from the PC.
• A host suspend request disconnects the host BLE link immediately.
• A key, encoder, trackball, or touchpad event starts reconnection, and the first event is retained until the PC reconnects.
• Changing Host disconnect timeout in Bluetooth settings takes effect immediately.

What to test

• Overnight battery drain of the central and peripheral halves while the PC is on and while it is asleep.
• Reconnection delay and first-input delivery after the full timeout.
• Wake behavior from keys, encoders, trackballs, and touchpads on Windows, macOS, and Linux.
• Several timeout values, including changing the value while connected.

Flash both halves with the matching left/right UF2 files from one archive. Qube firmware is not included in this prerelease.

Ergohaven RMK Firmware v0.1.7

Features

• Added firmware-native Universal Symbols and Russian letters to dynamic Combo and Tap Dance actions
• Added persistent per-combo activation layers configurable from Entropy
• Advertised exact firmware update package identities for all 14 supported Ergohaven keyboard and Qube profiles

Fixes

• Suspended K:04 trackball and touchpad modules during automatic sleep while preserving their selected type and settings after wake
• Stabilized repeated macro saves, split BLE traffic, pointing-mode changes, and K:04 thumb-cluster geometry

Removed

• Removed RMK firmware and release builds for the standalone Trackball Mini v3.0, Mini v3.1, and Royale devices

Ergohaven RMK Firmware v0.1.6

Features

• Includes the firmware-native Universal Symbols and Russian letter actions introduced in the v0.1.5 release candidate.
• Restores explicit per-side K:04 module selection: None, Encoder, Trackball, or Touchpad. Only the selected module remains active.
• Keeps the BLE sleep manager alive across reconnects and profile changes, with wakeup from keyboard and pointing-device activity.

Fixes

• Prevents automatic blue pairing on bonded profiles; pairing starts only for an empty profile or after an explicit bond clear.
• Prevents USB suspend and bus-state changes from blocking the HID/input path, including cancellation of writes already waiting on the endpoint.
• Fixes K:04 trackball report starvation and split-link backlog during continuous movement.
• Hardens touchpad idle wakeup, charging/ATI frame filtering, two-finger gesture confirmation, and stale-state cleanup.

Initial firmware packages

• k04-v0.1.6.zip: K:04 Series Standalone.
• k04-mini-v0.1.6.zip: K:04 Mini Series Standalone.
• k04-micro-v0.1.6.zip: K:04 Micro Series Standalone.
• SHA256SUMS.txt: checksums for every published archive.

Qube and the remaining keyboard packages will be added to this same release after K:04 Series hardware validation.

The experimental touchpad RDY-over-P1.09 change is intentionally not included. Every archive contains the exact build commit (798b074fcb2420156c03033d6b26b2babb0f73fd) and SHA-256 checksums for its UF2 files.

Ergohaven RMK Firmware v0.1.5 RC1

Features

• Added modular firmware-native Universal Symbols for EN/RU punctuation, with autonomous Toggle, Sync, English, Russian, PC, and macOS controls.
• Added firmware-native Russian х, б, ю, and ъ actions with normal Shift, One-shot Shift, and Caps Word behavior.
• Advertised Universal Symbols through the Ergohaven native key-action capability protocol on every bundled Ergohaven keyboard profile.

Compatibility

• Universal Symbols work without Entropy by sending standard HID keys and temporarily managing the EN/RU layout in firmware.
• Entropy v0.3.2-rc.1 adds the matching picker UI and optional automatic Layout Sync for supported desktops.
• Updating from v0.1.4 does not require storage migration, pairing reset, or settings reset.

Firmware packages

• velvet-v0.1.5-rc.1.zip: Velvet Standalone — right main and left peripheral.
• velvet-qube-v0.1.5-rc.1.zip: Velvet + Qube — dongle, left, and right.
• k04-v0.1.5-rc.1.zip, k04-mini-v0.1.5-rc.1.zip, k04-micro-v0.1.5-rc.1.zip: K:04 Series Standalone.
• k04-qube-v0.1.5-rc.1.zip, k04-mini-qube-v0.1.5-rc.1.zip, k04-micro-qube-v0.1.5-rc.1.zip: K:04 Series + Qube.
• op36-v0.1.5-rc.1.zip, k03-v0.1.5-rc.1.zip, imperial44-v0.1.5-rc.1.zip: OP36, K:03, and Imperial44 Standalone.
• op36-qube-v0.1.5-rc.1.zip, k03-qube-v0.1.5-rc.1.zip, imperial44-qube-v0.1.5-rc.1.zip: OP36, K:03, and Imperial44 + Qube.
• settings-reset-v0.1.5-rc.1.zip: settings reset utility for recovery only.
• SHA256SUMS.txt: checksums for every release archive.

Every keyboard archive includes the exact build commit and checksums for its UF2 files.

Ergohaven RMK Firmware v0.1.4

Features

• Added unified Velvet UI firmware for Standalone and Qube, with the right half as the Standalone central and optional PMW3610 trackball support
• Added persistent Velvet trackball enable and Mouse auto-layer timeout controls for Entropy
• Added left/right battery telemetry, live Qube display data, and consistent factory layouts across the unified Ergohaven profiles
• Embedded the Ergohaven firmware version 0.1.4 in every released keyboard definition and exposed it through VIA id_firmware_version

Fixes

• Fixed Velvet startup and split-runtime panics caused by exhausted settings and layer subscribers
• Fixed PMW3610 report starvation, idle jitter, auto-layer timeouts, and stale-motion accumulation
• Fixed split BLE framing, link cadence, HCI command serialization, reconnect synchronization, and wake responsiveness
• Restored RP2040/Pico split compatibility by avoiding unsupported ARMv6-M atomic read-modify-write operations
• Fixed Qube display redraws blocking pointer reports; Shift and Command indicators now update atomically without cursor freezes
• Fixed K:04 encoder detents and USB layer indication, classic keyboard defaults, and live split status reporting

Firmware packages

• velvet-v0.1.4.zip: Velvet Standalone — right main and left peripheral
• velvet-qube-v0.1.4.zip: Velvet + Qube — dongle, left, and right
• k04-v0.1.4.zip, k04-mini-v0.1.4.zip, k04-micro-v0.1.4.zip: K:04 Series Standalone
• k04-qube-v0.1.4.zip, k04-mini-qube-v0.1.4.zip, k04-micro-qube-v0.1.4.zip: K:04 Series + Qube
• op36-v0.1.4.zip, k03-v0.1.4.zip, imperial44-v0.1.4.zip: OP36, K:03, and Imperial44 Standalone
• op36-qube-v0.1.4.zip, k03-qube-v0.1.4.zip, imperial44-qube-v0.1.4.zip: OP36, K:03, and Imperial44 + Qube
• settings-reset-v0.1.4.zip: settings reset utility
• SHA256SUMS.txt: checksums for every release archive

Velvet installation

• Standalone: flash velvet_standalone_left_peripheral.uf2 to the left half and velvet_standalone_right_main.uf2 to the right half. USB connects to the right half. Start the left half first, then the right half.
• Qube: flash the dongle and both halves from velvet-qube-v0.1.4.zip.
• Updating from the current unified firmware does not require storage_migrate or a pairing reset.

Ergohaven RMK Firmware v0.1.3

Features

• Added complete K:04 Series firmware for K:04, Mini, and Micro in standalone and Qube configurations
• Added left/right battery telemetry and Qube live display data across the complete K:04 Series
• Added module-aware pointing settings, configurable encoder steps, and factory-enabled touchpad acceleration and gestures for the K:04 Series
• Embedded the Ergohaven manufacturer and firmware version 0.1.3 in the released K:04 and trackball definitions and exposed the same version through VIA id_firmware_version

Fixes

• Fixed split wake latency after idle while retaining the power-saving connection interval
• Fixed excessive idle polling for trackball and touchpad modules
• Fixed BLE Vial report framing, host-session responsiveness, discovery compatibility, and split battery updates
• Fixed K:04 settings persistence, Layer LED writes, touch gestures, and Qube pointing runtime parity