99069ba5fe1ca91bd2ecd15d30355d9172da0ff6
calendar_render.py's _build_* functions now take a real target box and pick font sizes/margins from three discrete size tiers (nearest pixel-area fit) instead of always laying out at full panel size and resizing after the fact -- a calendar widget placed smaller than the full panel gets an actually-legible layout instead of shrunk text. Month view falls back to agenda below the smallest tier, where 7 columns can no longer stay readable. The old photo-inlay split (inlay_region/_content_region/_paste_inlay) is deleted along with it -- arbitrary widget placement already subsumes what a fixed half-panel split did, and every call site has passed photo_inlay=None since the Phase 2 cutover. Also adds HTTP-level test coverage for GET .../preview/calendar, which had none before this -- it's what caught a stale photo_inlay kwarg left over from the _build signature change that would have TypeError'd on every request.
ESPresso Frame
A DIY e-ink photo frame: an ESP32-C6 pulls photos from your Immich library and displays them on a 7.3" full-color e-paper panel, waking on a timer to refresh and spending the rest of its time in deep sleep.
- No cables to a computer, no SD card shuffling. Provisioning is a captive portal with a QR code drawn on the panel itself -- scan, join, fill in your WiFi and server address, done.
- The frame never decodes an image. A small self-hosted server does all the work (pulling from Immich, cropping, dithering, packing into the panel's exact pixel format) and hands the device a stream it can write straight to SPI. The ESP32-C6 has no PSRAM and not much SRAM to spare -- keeping it a dumb display client is what makes that workable.
- Crops toward faces, not just the center, using face bounding boxes Immich already computed for its own People feature -- no bundled face detector.
- Refresh interval and album are configurable from a web UI, no reflashing needed to change them.
Hardware
- ESP32-C6 dev board (8MB flash)
- Waveshare 7.3" E Ink Spectra 6 (E6) panel -- 800x480, 6-color, SPI
See docs/hardware.md for wiring and
docs/architecture.md for how the two halves talk
to each other.
Getting started
server/-- run the FastAPI server first (Docker Compose, points at your Immich instance). Seeserver/README.md.firmware/-- build and flash the ESP32-C6, then scan the QR codes it draws on first boot to provision it. Seefirmware/README.md.
Repo layout
firmware/ ESP-IDF project for the ESP32-C6
server/ FastAPI server: Immich -> crop/dither/pack -> the frame
docs/ Wiring and architecture notes
License
MIT -- see LICENSE. A few small pieces of vendored
third-party code (a QR code generator, a bitmap font table) keep their
own permissive licenses; see LICENSE for details.
Built with substantial assistance from Claude Code.