WiFi starts and joins on internal RAM: ~42 KB the first time, ~25 KB after,
more for WPA. Free internal RAM had shrunk to ~20 KB after opening the map
(the tile decoder's 12 KB stack, the 32 KB I-cache, the DMA draw buffers,
UI statics), so a scan failed at once (esp_wifi_init: no memory) and a join
during a tile download timed out (AUTH_EXPIRE).
- ESP-IDF: CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY, and the esp_timer
task stack 8 -> 4 KB (it uses ~0.4 KB). Rebuild the framework libs:
pio run -e Wio_Tracker_L2_idf_libs.
- PSRAM_BSS (EXT_RAM_BSS_ATTR) on the UI's big statics: QR codes, map
state, charts, lists. .dram0.bss 115 -> 66 KB.
- The tile decoder's and fetcher's task stacks in PSRAM.
Free internal RAM, idle: 48 -> 105 KB; WiFi up: 57 KB, 29 KB at the
lowest while downloading tiles.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Neither is published or used any more: the LVGL firmware on Arduino-ESP32
3.x is the only L2 build.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The panel takes each 24-line band by DMA while LVGL draws the next one
into the other buffer (two 15 KB buffers in internal RAM; LovyanGFX's
4092-byte DMA descriptors leave PSRAM unaligned for the S3's DMA, which
showed as shifted and smeared bands). LVGL draws in the panel's byte
order, and so do map tiles and the frozen screen under a popup, so
nothing is swapped on the way out. Full frames ~10-25% faster (page1
19.9 -> 14.7 ms, Home 21.4 -> 18.2 ms). Without the internal RAM the
screen is sent as before. The arduino2 env keeps the old way.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The framework libs are rebuilt for the L2's own ESP-IDF options
(solo/wio-tracker-l2/idf/sdkconfig): a 32 KB instruction cache and
64-byte data cache lines make frames ~35% faster (map 45 -> 30 ms,
settings ~36 -> 22 ms). mbedTLS and the NimBLE host allocate in PSRAM,
so internal RAM ends up with more free than before (103 KB, largest
block 57 KB; was 89.6 / 45).
Wio_Tracker_L2_idf_libs does the rebuild; it has to run before the
firmware env, also in CI. idf/arduino_tinyusb gives the rebuild the
TinyUSB options and the framework's prebuilt library, which it would
otherwise lose.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PNGdec (bitbank2, 1.1.6) decodes a tile a row at a time straight into
RGB565, without lodepng's 256 KB RGBA buffer; the trail overlay goes through
it too, blended by hand for palette-with-alpha and RGBA. It lives in its own
file (ui-lvgl/TilePng.cpp) because its zlib headers put DONE/EXTRA in the
global namespace. lodepng stays the fallback and the sim's decoder.
Same 20 tiles: decode 78 -> 50 ms, trails 42 -> 17.5 ms, a whole tile
170 -> 105 ms; the map with trails is pixel-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Trail on the L2: 32768 points every 5 m, no simplification, no point
spacing setting; copied to the card every minute and restored at power-on.
The line keeps up with the position dot (incremental sync, pending point).
Map: a tap's finger jitter no longer turns follow off; the GPS button
shows when the map follows. The trail is drawn as one polyline with
breaks and off-view chunks skipped (an lv_line queued a draw task per
point).
Fewer rebuilds: conversation bubbles patched (new messages, delivery
marks), home mini-map dots reused, Nearby rows rewritten in place,
history read in runs and each file opened once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- CMD_GET_SCREENSHOT on colour screens: display type 2 (RGB565 LE),
32-bit payload size; ui-lvgl captureFrame() shared with the SD BMP
- ENABLE_SCREENSHOT in the L2 build; tools/screenshot.py decodes type 2
- docs and READMEs point to solo.marekzegarek.com/#pc-tools
- USB popup: "Keep card" instead of "Charge only" (only the card is lent;
charging and USB serial work either way)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Short pages by feature (getting started, messages, contacts, navigation,
tools, settings, lock, hardware) instead of one page per OLED screen, with
Wio Tracker L2 differences as notes; facts checked against the code
(keyboard scripts vs. hold-for-accents, {batt}/{dist}, L2 limits and
settings layout). Developer guides and build flags under docs/solo/developer.
Old docs/solo_features and its ~50 screenshots removed; a hero banner and
three simulator screenshots added; links updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Working plans (docs/development, docs/design redesign notes) removed; the
two developer guides moved to docs/developer/. README cut to devices,
flashing, links and building (Wio Tracker L2 added); its feature list and
doc tables moved to docs/solo_features/README.md. RELEASE.md describes the
Solo release flow. Upstream's GitHub Pages workflow (docs.meshcore.io)
dropped, CLAUDE.md untracked, Buy Me a Coffee back in FUNDING.yml.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- USB through TinyUSB (ARDUINO_USB_MODE=0) instead of USB-Serial/JTAG: the
serial port stays, and plugged into a computer (enumerated, the bus not
suspended -- on battery an unplug only shows as a suspend) the device asks
"Charge only / USB drive". As a drive the firmware lets go of the card and
the computer gets its sectors; ejected or unplugged, the device restarts.
- Incoming messages: a banner slides down from under the status bar (icon,
sender or channel, two lines of the text from history); a tap opens the
conversation (not while locked), a swipe up dismisses it, not shown for
the conversation already open. Toasts moved up there too, under the banner
when both are up; the ones only echoing a switch or a choice are gone.
- Storage > Format card: a popup saying what goes, then Format tapped twice;
one FAT32 volume over the whole card (readable or not), then a restart.
- A deliberate restart shows a full "Restarting..." screen with the reason
instead of the screen just freezing.
- The screenshot flash is a thin frame round the edges: a full-screen fade
redrew all 320x240 each step and tore.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
helpers/esp32/InternalFS.h picks the filesystem: -D ESP32_LITTLEFS mounts
LittleFS on the same "spiffs" partition, otherwise SPIFFS as before. Only the
L2 LVGL envs set it; every other ESP32 board is unchanged. A settings save
drops from ~0.5 s to ~80 ms and the files survive power loss mid-write.
No migration: the first boot formats the partition (fresh identity).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The triangle draw descriptor's colour fields lost their bg_ prefix and style
getters take an lv_part_t. 9.6 sizes flex containers through the layout, so
popups no longer shrink when pulled past their end: lvgl_patches.py goes.
The sim wipes its LVGL object cache when the library version changes.
Flash +73 KB.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
LVGL 9.2.2 measures a SIZE_CONTENT box from its children as scrolled, so an
elastic pull past the end of a capped popup list shrank it by the overshoot,
again on every pull. lvgl_patches.py fixes calc_content_height in the
downloaded library (a build middleware for PlatformIO, called directly by the
sim's build_wasm.sh).
The five popups that each built the same panel now share popupOpen() (fit to
content / full height / under the status bar).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Home > GPS and Settings > System > GPS details: satellites on a sky plot
(filled = used in the fix, colour = C/N0), a bar per satellite with its
dB-Hz, fix state with time to first fix, DOPs, position, altitude, speed,
UTC and per-constellation counts; a Turn on button while GPS is off
- helpers/sensors/GpsSky.h parses GSV / GSA / GGA / RMC from any talker,
fed from MicroNMEALocationProvider behind -D GPS_SKYVIEW (L2 and the
sim only; L1 unchanged); the sim feeds it made-up NMEA
- Roadmap: GPS indoors diagnosed with it - on the USB cable the L76K
tracks satellites but never decodes navigation data; on battery it
gets UTC within seconds and a fix
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Message history archived per conversation on the SD card (HIST_ARCHIVE):
restored on boot, Older/Newer paging in threads, kept count selectable
- Settings > System > Storage: card and flash usage, breakdown by maps,
messages, trails and other, kept-per-chat setting, delete history;
reads the mounted volume and warns when the FAT partition is much
smaller than the card
- Saved trails on the card: every Save is a new file, Load opens a list
with load (framed on the map), GPX export and delete
- Diagnostics: GPS data rows, last start reason, last crash summary
- Messages restored before the clock is set show their date instead of 0s
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Screen PIN (Settings > Display & power > Security): 4-8 digits in NVS,
keypad on the lock card after every wake and on boot, 5 misses -> 30 s pause
- Live map tiles: missing tiles at the current zoom are fetched over the saved
WiFi, written to the card and drawn; WiFi drops 30 s after leaving the map;
"Live tiles" switch in Map tools
- Firmware update (Settings > System): checks the fork's latest release,
streams the -ota.bin into the spare app slot over TLS verified with the
Arduino 3.x CA bundle, checks image magic/chip id, restarts
- Release workflow publishes *_solo_lvgl envs (merged image + -ota.bin)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- New env Wio_Tracker_L2_companion_solo_lvgl_v3 on pioarduino 55.03.312-1;
the 2.0.17 env stays until the new one passes the hardware checklist
- SerialBLEInterface: NimBLE variant (PIN pairing through encrypted,
authenticated characteristic properties; setAccessPermissions is a no-op)
- buzzer: i2s_std driver on IDF 5 (legacy driver kept for 2.0.17)
- ESPNOWRadio: IDF 5 callback signatures
- ui-lvgl: psramBuf() for trail drawing, tile cache, map marks, list rows,
keyboard maps and message metadata; internal heap back to 2.0.17 level
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- genericBuzzer I2S path (BUZZER_I2S): an audio task synthesises the notes
with eased edges and keeps the DMA queue fed with silence between sounds;
ES8311 setup; amp powered through the board only around sounds
- ui-core/SoundControl.h (mode, volume, built-in sounds, melody model),
SoundNotifier moved to the Core, chanctl::melody, schema Sound page
- L2: notifications, alarm / timer ring, locator sounds, Settings > Sound,
melody editor with the playing note lit, per-chat sound, mute icon
- noteIndex() on every buzzer backend; scrolling popups past screen height
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The map's download button fetches the visible area (overview levels up to
a chosen zoom) into /sdcard/maps from OpenTopoMap or maps/source.txt,
skipping tiles already on the card and rejecting placeholder answers.
Settings > WiFi stores the network in NVS (with scan); WiFi is on only
while a download runs. HTTP runs on a worker task on core 0; the popup
shows link, internal heap and the last TLS/HTTP error.
Internal RAM was the blocker (~13 KB free with WiFi + Bluedroid): the L2
LVGL env now allocates the_mesh in PSRAM (MESH_IN_PSRAM, static RAM
210 -> 87 KB) and mbedTLS allocates from PSRAM. Confirmed on hardware.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Map screen (Home > Map): Web-Mercator tiles from /maps/{z}/{x}/{y}.png on
the card (Meshtastic MUI layout; per-column TPK1 .pak also read), drag to
pan, +/- zoom, re-centre/follow GPS, Nearby nodes with a position as
markers opening node detail. Tiles decode one per loop pass into a
12-slot RGB565 cache in PSRAM. map/TileProvider.h is the swap point for a
later vector renderer: the screen only calls renderTile(). The tile set's
credit line comes from maps/attribution.txt.
L2 mounts the card over SDMMC 1-bit (CLK 2, CMD 3, D0 1). LVGL's lodepng
is enabled; note its LVGL patch returns an lv_draw_buf_t*, not pixels.
LVGL pool 2 MB for PNG decoding. Fonts gain map / users icons.
tools/maps/fetch_tiles.py prepares a card for an area (presets for
Poland), requires an explicit tile URL (tile.openstreetmap.org blocks
offline use) and stops on placeholder images. The LVGL sim preloads
web/maps into the L2's /sdcard and puts its GPS on Kraków.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fonts: Noto Sans generated with lv_font_conv (ui-lvgl/fonts/generate.sh,
OFL) replaces ASCII-only Montserrat: European Latin (Latin-1, Extended-A/B),
Greek, Cyrillic + supplement, typographic punctuation, currency, LVGL
symbols + globe; 12/14/16/20 px, clock 40 px digits only (RLE, so
LV_USE_FONT_COMPRESSED is on).
Keyboard (ui-lvgl/Keyboard.h): one layout per script (Latin QWERTY,
Cyrillic, Greek) picked by the same keyboard_main/alt_alphabet prefs as
ui-new, globe key to switch, hold a key for its variants in a popup above
it, one-shot shift, symbols page; compose limit counted in UTF-8 bytes.
First Settings screen (Keyboard: Main / Additional).
Long-press variants and UTF-8 case mapping move to ui-core/KeyboardData.h
and are shared with ui-new, whose Hold-Enter accents gain Romanian,
Turkish, Hungarian, Baltic and Icelandic letters (and ș/ț, Ukrainian /
Serbian letters now capitalise).
Verified on L2 hardware.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New examples/companion_radio/ui-lvgl/ over the shared UI Core (env
Wio_Tracker_L2_companion_solo_lvgl, LVGL 9.2.2, pool in PSRAM):
status bar, home (clock, unread), conversation list (channels + recent
DMs with unread badges), contact picker, conversation view with bubbles,
delivery / relay markers and on-screen keyboard, toasts for Core events,
display auto-off with wake on touch / button. Board glue (LovyanGFX
flush + GT911 touch) isolated in LvglPort.h; design tokens in Theme.h.
UiCore gains the first frontend actions, sendDirectText() and
sendChannelText(), and drives DM auto-resend + unread reconcile from its
own loop (removed from ui-new's loop). MessageHistory exposes newest-first
DM ring iteration and a public contactByPrefix().
Verified on L2 hardware: navigation, send/receive, sleep/wake.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Seeed Wio Tracker L2 (ESP32-S3R8 16MB/8MB PSRAM, SX1262, NV3031B 320x240
QSPI LCD + GT911 touch + LP5814 backlight, TCA9535 expander gating every
rail, ADS1115 battery ADC, AW35615 USB-C, L76K GNSS).
Board layer ported from meshcore-dev/MeshCore PR #3381 (Hacuchino-hash),
kept at the same paths for an easy upstream merge. Differences:
- display: dropped the UIColor theme (not adopted in this fork)
- GpsTap diagnostics wrapper omitted; GNSS reads Serial1 directly
- nv3031b ODR fix dropped: LovyanGFX >= 1.2.30 (now pinned) defines
Panel_NV3031B::init_cmds itself -- the fix became a duplicate symbol
- MESH_DEBUG_PRINTLN with a non-literal format fixed (broke MESH_DEBUG builds)
- upload_speed 115200: baud is virtual on native USB; skips the switch
solo/wio-tracker-l2 adds Wio_Tracker_L2_companion_solo_bringup: ui-new
zoomed 2x, BOOT button only, no touch -- a hardware smoke test, not a
release target (deliberately not *_solo_dual, so CI doesn't publish it).
The real UI for this board will be a new LVGL frontend.
Verified on hardware: boot, display, radio, GPS, battery, BLE app link.
First boot takes tens of seconds while SPIFFS formats its 3.4 MB partition.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
JakubandClaude Opus 5.5