Cached opentopia stream URLs go stale, and the stored-URL retry path
re-showed the same camera (sometimes a full second time via the history
interaction), which read as frequent repeats. Now opentopia cameras
re-resolve their stream URL on every play and the retry dance is gone; a
last-drawn guard also prevents any camera being drawn twice in a row.
Verified: 29 consecutive cameras, 29 distinct, 0 repeats.
Random mode keeps a ring of the last 1200 cameras (provider|id) and
skips them, giving up after four fully-seen pages. Opentopia pages now
contribute all 19 cameras instead of the first six.
Themes (Phosphor, Pink, Amber, Ice, Terminal) restyle the menu, boot
page and toasts live from the menu; all but Terminal use readable
Montserrat text. Source gains Popular: the top-rated listings walked in
rank order from page 1, alternating providers when mixed.
Listing pages (rated/newest) and per-camera pages are fetched over HTTPS
with the certificate bundle; the camera page's Live Feed mode yields the
camera's own MJPEG URL (Current Still as fallback), resolved just before
playing and cached in favourites. New Provider menu row: insecam /
opentopia / mixed. cam_info_t gains provider + title fields and the
settings blob a version byte; older favourites and settings still load.
BAT_ADC (GPIO4) sits between two 100k resistors on the switched supply
rail, so it reads the cell on battery and ~4.4 V on USB; above 4.25 V is
reported as USB power. On battery the caption shows a glyph + percentage
from a LiPo OCV table; the menu shows voltage and source. Menu lists now
wrap at both ends.
Hold the knob to open a six-row menu: save/remove the playing camera as
a favourite (12 NVS slots), play or forget favourites, choose the
source (random insecam or favourites), time per camera, listing,
screen and ring brightness, caption, and reboot into Wi-Fi setup.
Settings live in NVS and override the Kconfig first-boot defaults.
Camera URLs are stored with their COUNTER placeholder so favourites get
a fresh cache-buster on every visit.
ESP-IDF 5.5 + LVGL 9 firmware that plays random public cameras from
insecam.org on the T-Embed's 320x170 screen, live MJPEG where available,
a new camera every 20 seconds. Knob steps through cameras, LED ring shows
the countdown. Auto-detects the original vs CC1101 board, reuses Wi-Fi
credentials from NVS and falls back to a captive-portal setup hotspot.
Juli