pelgraine
1.5 KiB
Audiobook Player (Audio variant only)
Press P from the home screen to open the audiobook player.
Place .m4b, .m4a, .mp3, or .wav files in /audiobooks/ on the SD card.
| Key | Action |
|---|---|
| W / S | Scroll file list / Volume up-down |
| Enter | Select book / Play-Pause |
| A | Seek back 30 seconds |
| D | Seek forward 30 seconds |
| [ | Previous chapter (M4B only) |
| ] | Next chapter (M4B only) |
| Q | Stop & back to file list / Exit player |
Bookmarks are saved automatically every 30 seconds during playback and when you stop or exit. Reopening a book resumes from your last position.
Cover art from M4B files is displayed as dithered monochrome on the e-ink screen, along with title, author, and chapter information.
Audio Hardware
The audiobook player uses the PCM5102A I2S DAC on the audio variant of the T-Deck Pro (I2S pins: BCLK=7, DOUT=8, LRC=9). Audio is output via the 3.5mm headphone jack.
Note: The audiobook player is not available on the 4G modem variant due to I2S pin conflicts. MP3 format is recommended over M4B for best compatibility with the ESP32-audioI2S library.
SD Card Folder Structure
SD Card
├── audiobooks/
│ ├── .bookmarks/ (auto-created, stores resume positions)
│ │ ├── mybook.bmk
│ │ └── another.bmk
│ ├── mybook.m4b
│ ├── another.m4b
│ └── podcast.mp3
├── books/ (existing — text reader)
│ └── ...
└── ...