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    AJMRTC 3Inch E-Paper (G) Raw Display Panel, 400×168, Red Yellow Black White 4-Color E-Ink, 3/4-Wire SPI Interface, No Onboard Driver Board, Ultra Low Power for Custom ESL Industrial Dashboard STM32 Ar

    • - Raw bare eink panel without integrated driver carrier board, 400×168 resolution with red, yellow, black and white four ink colors
    • - Supports 3-wire and 4-wire SPI selectable via BS pin setting, flexible for custom PCB integration
    • - Bistable reflective eink technology, zero standby power, retains content after power removal
    • - Ultra-wide viewing angle over 170°, readable clearly under ambient light with no backlight required
    • - Compact thin form, ideal for custom enclosure, electronic shelf label and space-limited embedded design
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    Overview
    Specs
    Reviews

    Any questions? Ask CelesteSM will help you find out quickly.

    AJMRTC 3-inch E-Paper (G) raw panel is a bare four-color electrophoretic display for custom hardware development. It uses E Ink Spectra 3100 four-ink system to show warning prompts, price tags and highlighted information with red and yellow. It only consumes power during full refresh, and standby current is nearly zero. Since it is a raw panel, you need to match it with a dedicated driver board to supply required driving voltage and timing signals. It comes with datasheet and timing reference for Raspberry Pi, STM32 and Arduino firmware development. It fits custom electronic shelf labels, industrial status tags, battery-powered indicators and DIY low-power display projects. Flicker is normal during full refresh, and partial refresh is not supported.


    Specifications

    1. Screen Size: 3 inch
    2. Resolution: 400 × 168
    3. Display Color: Red, Yellow, Black, White (4 Colors)
    4. Interface: 3-Wire / 4-Wire SPI (BS pin selectable)
    5. Refresh Mode: Full Refresh Only
    6. Full Refresh Time: 12s
    7. Viewing Angle: 170°
    8. Working Logic Voltage: 3.3V
    9. Standby Current: <0.01uA
    10. Panel Thickness: 0.85mm
    11. Weight: 5.6g
    12. Note: Raw panel only, driver board is NOT included
    13. Compatible Host: Raspberry Pi, STM32, Arduino, Jetson Nano (extra driver board required)
    14. Application: Custom Electronic Shelf Label, Industrial Warning Tag, Low-Power Battery Display, Embedded HMI


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