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>
Chart.h draws Diagnostics > History, the noise sweep and the trail's height
profile: round values up the left, labels along the bottom, a solid fill
(no transparency) and, under a finger, the sample's value and when / where.
Sim: sim_open("histdemo") / ("profdemo") fill them with made-up data.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Node detail: a card with a compass rose and the hop chain over the info;
the bar keeps Message / Admin / Add, Ping and Navigate, the rest goes to a
"More" group under the info (favourite toggled in place, delete by a second
tap). Nodes: an arrow by each distance. A trail's height profile in Map
tools and a saved trail's popup. Diagnostics > History: battery, noise,
SNR and traffic charts. Clock > Calendar: today, the weekend and alarm days.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
JakubandClaude Opus 5.5