release v0.2.7

What's Changed

• drm/canaan: derive DSI hsfreqrange from lane rate (fix RM69A10 warm-init image shift) by @jheidecker in #5

New Contributors

• @jheidecker made their first contribution in #5

NRF9151 and NRF52840 Firmware

Version v0.2.5 does not include firmware updates for the nRF9151 and nRF52840; if you need to update the firmware, please go to v0.2.0 to download the nRF9151 and nRF52840 firmware.

release v0.2.6

Added

• Added NES mapper 163 support ISSUE2 .
• Added safer NES ROM validation before launch to avoid crashes caused by unsupported, empty, or incomplete ROM files.

Improved

• Updated LR2021 LILYGO RF switch handling for DIO6/DIO7/DIO8/DIO10 routing ISSUE3
• Limited LR2021 LILYGO 2.4 GHz HF profile power to 4 dBm.
• Updated LoRa, FLRC, and Meshtastic LR2021 paths to use the same RF switch and power-limit behavior.
• Updated documentation for LR2021 module RF-switch differences.

Notes

• LR2021 868/915 MHz hardware uses the DPX205850DT-4055A1 duplexer and does not use an MXD8721 RF switch.
• DIO8/DIO10 RF-switch control applies only to the 433 MHz LR2021 variant.

Commits Included

• NES ROM stability and mapper 163 fixes.
• LR2021 LILYGO RF switch and HF power-limit fixes.
• Documentation and changelog updates for v0.2.6.

NRF9151 and NRF52840 Firmware

Version v0.2.5 does not include firmware updates for the nRF9151 and nRF52840; if you need to update the firmware, please go to v0.2.0 to download the nRF9151 and nRF52840 firmware.

release v0.2.5

Highlights

• Added optional DRV2605 haptic feedback support.
• Added GC2093 camera focus support for modules with a DW9714 focus actuator.
• Added camera QR code scanning flow.
• Improved camera startup reliability and autofocus settling behavior.
• Improved music and NES list navigation and portrait layout handling.
• Improved MTP storage-space reporting and file-write error handling.

Camera

• Added DW9714 focus actuator support on the GC2093 camera I2C bus.
• Added tap-focus and autofocus stability improvements.
• Improved cold camera pipeline startup behavior.
• Fixed portrait QR scanner preview rotation.
• Added camera QR scanner app flow.

Launcher Apps

• Improved music playlist and song-info navigation.
• Improved long-title handling in music lists.
• Improved NES ROM list scrolling and portrait layout bounds.
• Added protection against loading empty or incomplete NES ROM files.

Storage / MTP

• Improved MTP storage-space safeguards.
• Improved MTP responder write-error handling so failed copies are easier to diagnose.

Hardware / Documentation

• Documented optional DW9714 focus actuator support and I2C address 0x0C.
• Documented optional DRV2605 haptic feedback support.
• Updated hardware support lists and pin maps.

Notes

• DRV2605 is optional hardware and only works on boards fitted with the haptic driver.
• DW9714 focus support only applies to camera modules with the focus actuator populated.
• NES ROM files are still user-provided and are not bundled in the default image.

NRF9151 and NRF52840 Firmware

• Version v0.2.5 does not include firmware updates for the nRF9151 and nRF52840; if you need to update the firmware, please go to v0.2.0 to download the nRF9151 and nRF52840 firmware.

release v0.2.4

Highlights

• Added PicoClaw AI chat app.
• Added PicoClaw model profiles, API-key storage, SSH profile provisioning, and
  Weixin QR login.
• Added persistent XL9555 address probing for keyboard-base hardware variants.
• Added LoRa radio model persistence so the launcher can reuse the last detected
  SX1262/LR2021 type and re-probe only when initialization fails.
• Improved LoRa RF test profile layout and payload controls.
• Improved I2C Scan with asynchronous scanning and added the extension bus used
  by keyboard and sensor hardware.
• Updated default hardware F-key actions:
  • F3: keyboard backlight down
  • F4: keyboard backlight up
  • F7: screenshot
• Moved release iteration notes from README files into dedicated changelog files.

Documentation

• Added CHANGELOG.MD and CHANGELOG_CN.MD.
• Cleaned the top-level README files so they remain stable across releases.
• Updated the launcher app guide with the latest PicoClaw, I2C Scan, screenshot,
  and keyboard hotkey behavior.

Notes

• PicoClaw requires network access and an OpenAI-compatible model API key.
• Meshtastic voice/photo transfer is available only between K230 devices using
  LR2021 modules. SX1262 devices support basic text mesh messages.
• NES ROMs and offline map tiles are not bundled in the default image.
• Hardware-dependent apps check for optional peripherals before enabling related
  features.

release v0.2.2

Highlights

• Added and refined the Xiaozhi voice assistant app.
• Improved wake-word, push-to-talk, hardware MIC key, and chat transcript behavior.
• Added a full-screen robot face mode for Xiaozhi voice interaction.
• Improved Xiaozhi audio playback/session handling so long responses can continue correctly.
• Added automatic Xiaozhi session recovery when the background session closes unexpectedly.
• Improved battery and power defaults for first-run images.
• Added optional low-voltage shutdown with a cleaner shutdown animation path.
• Improved nRF52840 UART ownership coordination between Meshtastic BLE and nRF DFU.
• Improved SD-card image generation for clean rebuilds and reboot validation.
• Updated public README and launcher documentation for the current release.

Xiaozhi Voice Assistant

This release includes a Xiaozhi-compatible voice assistant app. The app supports:

• Official 6-digit device binding flow.
• Chat-style conversation view.
• Wake-word entry with the xiaozhi wake word.
• Push-to-talk button.
• Hardware MIC key input.
• Full-screen robot face mode.
• Automatic session reconnect.
• Network fallback handling for Ethernet/Wi-Fi environments.

Xiaozhi is currently treated as a beta feature. It requires network access and a compatible Xiaozhi service. Wake-word listening is active only while the Xiaozhi app is open and owns the microphone.

Power And Battery

• Added first-run charger defaults:
  • Charge current: 704 mA
  • Charge voltage: 4288 mV
• Set the default battery capacity to 6000 mAh.
• Added optional low-voltage shutdown thresholds.
• Improved shutdown behavior so screen and keyboard backlight handling is coordinated during shutdown.
• Improved BOOT0 screen toggle debounce behavior.

Optional battery and charger features are enabled only when the related hardware is detected.

nRF52840 And Meshtastic BLE

• Improved nRF52840 manager behavior.
• Reduced UART contention between Meshtastic BLE and nRF DFU.
• nRF DFU now uses the managed nRF52840 path and restores normal ownership after the update flow.
• Meshtastic remains a beta feature. Text mesh messaging is supported on SX1262 and LR2021 boards; K230-to-K230 voice/photo transfer requires LR2021 modules on both devices.

BSP And Image Generation

• Improved BSP apply behavior so generated rootfs artifacts are refreshed when needed.
• Improved repeatability for clean image builds.
• Improved reboot validation behavior for newly flashed SD-card images.

The validated upstream SDK remains:

https://github.com/kendryte/k230_linux_sdk.git
dev commit 22d02c6b6783a57a3aca7eb3160e313e772cb710

User Content

The default image does not bundle user-provided content:

• NES ROM files should be copied to /root/nes.
• Offline map tiles should be copied to /root/maps.
• Music, videos, screenshots, recordings, and photos are managed through the launcher folders and can be accessed with the MTP app.

Known Limitations

• Xiaozhi, Meshtastic, LoRaWAN, nRF52840 UART DFU, and nRF9151 cellular/GNSS tools are still considered beta-level features.
• HDMI remains a diagnostic/optional path. AMOLED is the default display target.
• Optional hardware features require the corresponding module to be present.
• RTL8723DS Bluetooth requires the BT UART pins to be connected; SDIO covers Wi-Fi only.

Upgrade Notes

For the most reliable result, flash the full sysimage-sdcard.img from this release to the TF card. Fast SSH deployment is useful for launcher iteration, but a full SD-card image is recommended when validating BSP, boot, rootfs, or first-run behavior.

Full Changelog

v0.2.1...v0.2.2

release v0.2.0

Highlights

• Promoted the tested phone-style LVGL launcher and BSP work to v0.2.0.
• Added camera, gallery, media, terminal, MTP, settings, keyboard, cellular,
  LoRa/LoRaWAN, nRF52840 DFU, and Meshtastic beta apps.
• Added responsive portrait/landscape layouts and fixed the verified portrait
  scroll refresh issue.
• Added nRF52840 and nRF9151 managers to reduce UART contention between apps.
• Added Chinese pinyin input, emoji resources, notification sounds, app icons,
  and richer mobile-style status indicators.
• Added LoRaWAN profile management with CayenneLPP telemetry sources.
• Added Meshtastic beta chat, node list, map, channel sharing, notification,
  and K230-to-K230 media transfer experiments.

Input, Keyboard, and Language

• Added multi-language support, covering more applications and button text.
• Added Chinese Pinyin input, supporting input method switching triggered by external keyboards.
• Introduced Pinyin dictionary and emoji resources, supporting basic emoji input.
• TCA8418 keyboard changed to a unified input path prioritizing interrupts.
• Added customizable hotkey settings for F1-F11, supporting screen rotation, brightness, volume, audio output switching, keyboard backlighting, etc.
• Added keyboard backlight brightness control, persistence, and BOOT/INT0 screen on/off linkage.

nRF52840

• Added nRF52840 AT transaction manager, reducing the issue of direct UART preemption between DFU, BLE, and Meshtastic.
• Added nRF52840 DFU application, allowing UART updates from specified firmware packages on the SD card.
• Before DFU update, check the AT firmware version and upgrade package version. Upgrades will be rejected if the firmware versions are the same or incompatible.
• Meshtastic BLE status is integrated into the status bar, distinguishing between AT firmware compatibility, phone connection, and unavailable status.

nRF9151, Cellular, and GNSS

• Added a unified nRF9151 manager to centrally handle AT serial port, SIM/LTE/GNSS/HTTP/MQTT status.
• Cellular applications have been restructured into subpages for Modem Information, GNSS, HTTP, and MQTT.
• Supports reading information such as SIM status, IMEI, firmware version, carrier, registration status, and signal strength.
• Supports basic HTTP GET/POST tests.
• Supports MQTT connection, subscription, publishing, and message display.
• The GNSS page supports NMEA RX counters, TTFF, latitude and longitude, altitude, speed, direction, HDOP/PDOP/VDOP, satellite C/N0 histograms, and star charts.
• Meshtastic maps can use nRF9151 GNSS locations, distinguishing between initial positioning, using the previous positioning, and unfixed satellite positions when not fixed.

Meshtastic Beta

• Added the Meshtastic Beta application, providing a mesh chat interface for direct operation on the K230 side.
• The chat interface supports bubble messages, channel/target display, message notification sounds, node list, and node details.
• Supports official Meshtastic device message sending and receiving tests, supports saving/importing Channel URLs and displaying QR codes.
• Added a map page, supporting offline tiles, zooming, dragging, current location markers, and node location display.
• Added a node detection page, automatic refresh of nearby nodes, and expired node filtering.
• Added ChUtil display and media transmission limit prompts.
• LR2021 devices support K230-to-K230 FLRC voice and photo transmission testing; voice functionality is hidden by default on SX1262.
• Added RF lifecycle coordination for LoRa, LoRaWAN, and Meshtastic; Meshtastic is paused when entering the test application and resumed upon exiting by setting it to auto-start.

Fixes and Optimizations

• Fixed the issue of flickering/black blocks in the bottom area when scrolling in portrait mode.
• Fixed issues with album preview path, screenshot preview, landscape photo preview size, and return hierarchy.
• Fixed insufficient camera feedback, JPEG saving, and thumbnail display issues.
• Fixed the contention issue between nRF DFU and Meshtastic for nRF52840 UART.
• Fixed the issue of nRF9151 GNSS not updating NMEA count, not displaying C/N0, and inaccurate positioning status after being managed by the manager.
• Fixed the issues of background state not being cleared after exiting LTE/HTTP/MQTT actions, insufficient button feedback, and page information overload.
• Fixed the issues of overlapping text in landscape mode on the LoRaWAN page, overlapping text wrapping in data source cards, and insufficient feedback in the network access process.
• Fixed the incorrect return path in the settings subpage; now it is a step-by-step return path.
• Fixed several issues with vertical screen layout overflow, including those related to reboot, DFU, NES, Bluetooth, FFT, audio, notifications, charger, and battery.
• Fixed a conflict between automatic screen-off and shutdown animations; the shutdown animation is no longer interrupted by the screen-off timer.
• Fixed an issue where the desktop IP status was displayed incorrectly after switching between Wi-Fi and Ethernet routers.
• Fixed an issue where the status bar still displayed a valid status even when selectable hardware was not available.

Notes

• Meshtastic remains beta.
• Wi-Fi Test, LoRa FLRC, Halow, and low-level probe apps are hidden by default.
• NES ROMs, offline map tiles, and user media are not bundled.
• Optional hardware-dependent features are enabled only when the hardware is detected.

release v0.1.0

Full Changelog: https://github.com/Xinyuan-LilyGO/T-Display-K230/commits/v0.1