Adafruit
3.7-inch 416x240 Monochrome eInk Bare Display
· MPN: ADA6395
E-Ink and E-Paper panels are excellent for projects that need a low-power, daylight-readable display. The image remains visible even when power is disconnect...
E-Ink and E-Paper panels are excellent for projects that need a low-power, daylight-readable display. The image remains visible even when power is disconnected, giving a high-contrast, paper-like result for static information, labels, dashboards and portable builds.
This is a bare 3.7-inch monochrome black/white EPD panel with 416x240 black ink pixels on a white-ish background. It is not a complete breakout or driver board, so you will need to connect it to hardware with a standard 24-pin FPC e-paper connector.
Adafruit recommends using a matching driver option such as the Feather RP2040 ThinkInk for a solderless Arduino or CircuitPython setup, an eInk Feather Friend for Feather boards, an eInk Breakout Friend for breadboard use, or a 24-pin eInk/ePaper extension cable with a 24-pin FPC adapter if you need extra reach.
The display uses the UC8253 chipset, so check that your firmware supports it. Adafruit’s Arduino library handles the display driving and lets you work with it like an Adafruit_GFX compatible display. For better-looking monochrome images, dithering can be used to improve graphics output on the panel.
Specifications:
- Display size: 3.7 inch
- Resolution: 416x240 pixels
- Display type: Monochrome Black/White EPD
- Pixel colour: Black ink pixels
- Background colour: White-ish background
- Connector: Standard 24-pin FPC e-paper connector
- Chipset: UC8253
- Format: Bare display element
Ideal for makers who want to build their own eInk interface with Adafruit Feather, breakout or compatible driver hardware.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- ePaper
- A display technology that looks more like printed paper than a glowing screen and usually keeps its image visible with very little power. It matters for projects such as labels, badges, and status screens where readability and low power use are more important than fast animation.
- FPC
- FPC stands for flexible printed circuit, a flat flexible cable or connector style often used where space is tight. It matters because this breakout needs the correct pin count and pitch FPC cable to connect reliably to the display or high-speed interface.
- RP2040
- A microcontroller chip used on many maker boards, with enough speed and flexible I/O for some camera and display projects. Compatibility with RP2040 matters because camera modules often need many pins and careful timing to read image data successfully.
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Displays & Screens
3.7-inch 416x240 Monochrome eInk Display Datasheet
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Supplier page — adafruit.com
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