Commit Graph
4 Commits
Author SHA1 Message Date
tfaour d5de882b1e Fix stale documentation found by a doc-accuracy audit
firmware/README.md's HTTP vs HTTPS section still described the
public-CA-bundle trust approach that was tried and abandoned in favor
of pinning one specific certificate -- rewritten to match what's
actually there. docs/architecture.md was missing the back-photo button
entirely (sequence diagram and boot-flow bullets only covered next) and
still said the system talks "over plain HTTP" despite HTTPS support.
docker-compose.yml.example's MANAGEMENT_TOKEN comment understated its
scope (said "the web UI", omitting that every /frame/* endpoint is
gated too).
2026-07-19 15:20:12 -04:00
tfaour 3868d357ff Add back-photo button; consolidate reset/manage onto one hold-duration button
Build and push server image / build-and-push (push) Successful in 32s
Back button (new GPIO0, POST /frame/back): the server now tracks a
bounded history of previously-current photos (photo_queue.py), pushed
to on every advance (auto or forced) and popped by back_forced() --
symmetric with advance, so pressing next afterwards returns to right
where you were. frame_client.c's force_advance bool becomes a 3-way
fetch_action_t (NORMAL/ADVANCE/BACK) threaded through the whole fetch
path.

Also folds the separate reset and manage buttons onto one pin
(combo_button.c, replacing reset_button.c/manage_button.c entirely),
disambiguated by hold duration: quick press shows the management menu
(unchanged), ~3s hold-then-release soft-resets (esp_restart(), config
kept -- new), ~15s hold factory-resets (today's old reset behavior,
extended from 10s for clearer tier separation). Driven by a production
board (Seeed XIAO ESP32-C6) exposing only 3 of the ESP32-C6's 8
deep-sleep-wakeup-capable GPIOs -- next/back keep their own dedicated
pins where instant response matters most, everything else shares the
third pin via timing instead of needing its own. Same three-pin layout
now works on both the dev board and the production board.

Fixed a fast-tap bug in combo_button_check() before shipping: it only
did a live gpio_get_level() read to decide whether the button was
pressed at all, so a press fast enough to already be released by the
time boot reached that check was missed entirely (treated as "never
pressed" rather than "quick press"). Added the same latched
esp_sleep_get_gpio_wakeup_status() check the other buttons already use
for exactly this reason.
2026-07-19 12:53:26 -04:00
tfaour b9649c35ec Skip redundant panel refreshes and fetch the image before the config check
The panel driver now splits writing a frame into its SPI buffer
(epd_write_frame(), which also computes a CRC32 as it streams) from
actually triggering the physical refresh (epd_turn_on_display()).
frame_client.c compares the new CRC against the last one that was
actually refreshed (persisted in NVS) and skips the refresh entirely
when they match -- e.g. a reboot redisplaying the same photo before the
server's refresh interval elapsed no longer causes a visible flash for
no visual change.

Also reorders the per-wake fetch cycle: the image fetch (15s timeout)
now goes before the config check (3s timeout), instead of after. The
config check's tighter timeout was intermittently tripping on
connection-setup latency that's common on the first request after
waking from a long deep sleep (e.g. stale ARP); putting the more
tolerant request first absorbs that latency, and the config check then
rides the connection it already warmed up.
2026-07-18 23:51:01 -04:00
tfaour 7013311249 Add READMEs, docs, and LICENSE for publishing
Build and push server image / build-and-push (push) Successful in 32s
- LICENSE: MIT, with attribution notes for the vendored qrcode/epaper_fonts/
  dns_server code and the epd7in3e driver's transcription of Waveshare's
  register sequence.
- Top-level README.md: project overview, hardware list, quick-start
  pointing at firmware/ and server/, repo layout, license, Claude Code
  attribution.
- firmware/README.md: full rewrite (was still the stock ESP-IDF captive
  portal example's README) -- build/flash instructions, Kconfig reference
  table, first-boot walkthrough, and how to reset to provisioning mode via
  NVS erase (the only way in right now; a proper reconfigure trigger is a
  future addition).
- docs/hardware.md: wiring table + parts list + strapping-pin/SPI-speed notes.
- docs/architecture.md: sequence diagram and walkthrough of the full
  provision -> connect -> fetch -> display -> sleep cycle, plus the
  reasoning behind doing image processing server-side and reusing Immich's
  face detection instead of bundling a detector.
- server/README.md: fixed stale endpoint docs (missing GET /frame/config,
  POST /api/config still describing removed immich_url/api_key fields).
2026-07-18 16:47:30 -04:00