Seeed XIAO ePaper Display Board EE04

The XIAO ePaper Display Board EE04 is Seeed's do-it-yourself e-paper board: a XIAO ESP32-S3 Plus (8 MB of PSRAM) on a carrier with a 24-pin and a 50-pin panel connector (a jumper picks which one is live), three user keys, a reset button and a battery connector with a charger. Bring your own panel - anything from a 1.54" black/white tag to the 7.5" tri-color and, on the 50-pin connector, the 7.3" Spectra 6.

It has a hardware preset of its own, and FrameOS runs the full on-device renderer on it.

Setup

1. In the FrameOS backend or FrameOS Cloud, create a frame with Flash embedded device and choose ESP32-S3.
2. Select the Seeed XIAO ePaper EE04 hardware preset (seeed_xiao_ee04). It fills in the pins, the panel power switch, the three keys and the battery wiring.
3. Pick the panel you plugged in - the preset stays selected. It starts on the 7.5" black/white, and FrameOS Cloud asks for the panel when you flash. Seeed's panels usually share their controllers with Waveshare's: pick the driver with the same size, resolution and colors in the device database - for example the 7.3" Spectra 6 on the 50-pin connector.
4. Flash it over USB from the browser, then install scenes as usual.

Buttons and battery

The keys are KEY1 (GPIO 2), KEY2 (GPIO 3) and KEY3 (GPIO 5), and they arrive in scenes as button events. The battery is read through a 2:1 divider on GPIO 1, switched on by GPIO 6.

The board can't tell the firmware when USB is plugged in, so the preset leaves deep sleep off. Turn it on under Power if the frame lives on its battery.

Pin map

Status

🟡 Should work, not yet confirmed on real hardware. The pins are from Seeed's schematic. Tell us on GitHub or Discord if you try it.