Mission briefing

Detailed mission briefing

Browse EPUBs from internal storage and an optional SD card.
Restore reading positions and save up to 32 bookmarks per book.
Read with hidden controls and tap either side to turn pages.
Navigate by chapter, reader screen number or publisher page label when available.
Adjust font size, line spacing and inverted display mode.
Upload, download and delete internal files over Wi-Fi or BLE.
Configure settings through USB or Bluetooth with ESPConfig.
View estimated battery percentage and charging status in the library.
Enable button clicks and startup/shutdown sounds using the GPIO21 buzzer.
Use idle light sleep while reading, or the library's Off button for deep sleep.