Flipbook
Play short animations on e-paper. Convert any GIF on your computer and copy it to the card.
For the LILYGO T5 E-Paper S3 Pro · Free and open source
Your T5, as a reader, map and messenger.
E32 turns the 4.7-inch LILYGO T5 into a calm, fast e-paper companion: books with real typography, offline maps with GPS, off-grid LoRa messages, and a dashboard for your day. Install it from your browser in about two minutes.
Latest: v0.1.0 · Chrome or Edge on a computer · One USB-C data cable
Library
Maps
Mesh
Flipbook
Dashboard
GPS
SSH
Games
Settings
Continue: The Martian, p. 212
Illustration. Real device photos go here.
At a glance
- 960 × 54016 grey levels on the 4.7-inch panel
- 2 minutesBrowser install over USB, no tools
- OfflineBooks, maps and messages without the internet
- $0Free forever, source published
What E32 does
Reading
Typography done properly
EPUBs with real justification and hyphenation, working footnotes, your choice of fonts and spacing, and Quick Resume that drops you back on your page. Books move over Wi-Fi from any browser.
I'm pretty much screwed. That's my considered opinion. Six days into what should be the greatest month of my life, and it's turned into a nightmare. I don't even know who'll read this. I guess someone will find it eventually.
For the record, I didn't die on Sol 6. Certainly the rest of the crew thought I did, and I can't blame them.
Maps and GPS
Offline maps that know where you are
Load map tiles onto the SD card once, then navigate with no signal. The GPS screen shows a live sky plot of satellites and works with both GPS modules LILYGO fits to V2 boards.
Off-grid messaging
Talk to the Meshtastic mesh
The built-in LoRa radio joins the public Meshtastic channel, so you can message nearby nodes with no phone or cell service. You set your node name and radio region on first boot.
Trailhead parking is full, use the north lot.
Thanks, heading there now.
Ranger station has water.
Dashboard
Show a TRMNL-compatible dashboard from your own server. Nothing is pre-set: you choose the server.
Battery care
An optional 80% charge cap, accurate battery readings and deep sleep that wakes reliably.
Bluetooth keyboards and SSH
Pair a Bluetooth keyboard and open an SSH session to a computer you own.
Supported hardware
Check the marking printed on the back of your board.
| Board | Marking | Status | Notes |
|---|---|---|---|
| T5 E-Paper S3 Pro (V2) | H752-01 | Supported | GPS module is MIA-M10Q or L76K; E32 detects which one you have. |
| T5 E-Paper S3 Pro Lite | H752-01 | Planned | No LoRa or GPS, so Mesh and Maps are hidden. |
| T5 E-Paper S3 Pro (V1) | H752 | Not yet | Different display power design and no GPS. Use upstream CrossPoint for now. |
| T5 4.7" (non-Pro, ESP32) | n/a | No | Different chip and panel driver. |
Changelog
v0.1.0 · first public release (planned)
Reader, Maps and GPS, Meshtastic messages, Flipbook, Dashboard, battery care and in-browser install. Based on CrossPoint Reader 1.5.
Questions
Will this erase my books?
No. Your SD card is not touched. Settings stored on the device are reset on the first install.
Can I go back to the LILYGO factory firmware?
Yes. The install page links to LILYGO's factory image, and you can flash it the same way.
How do I update later?
Once E32 is installed, Settings > System > Check for updates downloads new versions over Wi-Fi.
Is the LoRa radio legal where I live?
Your board's radio band (433, 868 or 915 MHz) is set by the hardware you bought. Pick the matching region on first boot.
Credits and licenses
E32 stands on the work of many open-source projects. Full license texts ship with every release and are listed on the Licenses page.
CrossPoint Reader
The reader E32 is built on. MIT License.
freeink-sdk
Board support for e-paper readers. MIT License.
wolfSSL and wolfSSH
Secure connections and SSH. GPL; E32's full source is published for this reason.
M5GFX, RadioLib and more
Display, LoRa, JSON, images and Bluetooth libraries. MIT, BSD, Apache 2.0 and LGPL.