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Refactors Calibre Wireless Device & Calibre Library (#404)

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Our esp32 consistently dropped the last few packets of the TCP transfer
in the old implementation. Only about 1/5 transfers would complete. I've
refactored that entire system into an actual Calibre Device Plugin that
basically uses the exact same system as the web server's file transfer
protocol. I kept them separate so that we don't muddy up the existing
file transfer stuff even if it's basically the same at the end of the
day I didn't want to limit our ability to change it later.

I've also added basic auth to OPDS and renamed that feature to OPDS
Browser to just disassociate it from Calibre.

---------

Co-authored-by: Arthur Tazhitdinov <lisnake@gmail.com>
Co-authored-by: Dave Allie <dave@daveallie.com>
This commit is contained in:
Justin Mitchell
2026-01-27 06:02:38 -05:00
committed by GitHub
parent 13f0ebed96
commit 3a761b18af
20 changed files with 614 additions and 945 deletions
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14
USER_GUIDE.md
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@@ -81,6 +81,18 @@ See the [webserver docs](./docs/webserver.md) for more information on how to con
> [!TIP]
> Advanced users can also manage files programmatically or via the command line using `curl`. See the [webserver docs](./docs/webserver.md) for details.
### 3.4.1 Calibre Wireless Transfers
CrossPoint supports sending books from Calibre using the CrossPoint Reader device plugin.
1. Install the plugin in Calibre:
- Head to https://github.com/crosspoint-reader/calibre-plugins/releases to download the latest version of the crosspoint_reader plugin.
- Download the zip file.
- Open Calibre → Preferences → Plugins → Load plugin from file → Select the zip file.
2. On the device: File Transfer → Connect to Calibre → Join a network.
3. Make sure your computer is on the same WiFi network.
4. In Calibre, click "Send to device" to transfer books.
### 3.5 Settings
The Settings screen allows you to configure the device's behavior. There are a few settings you can adjust:
@@ -132,7 +144,7 @@ The Settings screen allows you to configure the device's behavior. There are a f
- **Reader Paragraph Alignment**: Set the alignment of paragraphs; options are "Justified" (default), "Left", "Center", or "Right".
- **Time to Sleep**: Set the duration of inactivity before the device automatically goes to sleep.
- **Refresh Frequency**: Set how often the screen does a full refresh while reading to reduce ghosting.
- **Calibre Settings**: Set up integration for accessing a Calibre web library or connecting to Calibre as a wireless device.
- **OPDS Browser**: Configure OPDS server settings for browsing and downloading books. Set the server URL (for Calibre Content Server, add `/opds` to the end), and optionally configure username and password for servers requiring authentication. Note: Only HTTP Basic authentication is supported. If using Calibre Content Server with authentication enabled, you must set it to use Basic authentication instead of the default Digest authentication.
- **Check for updates**: Check for firmware updates over WiFi.
### 3.6 Sleep Screen