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Small rectangular 2.9 inch e-paper display module with gold edge connector and black bezel

LORDWORLD

LORDWORLD 2.9inch e-Paper Display 296x128 2-Color SPI 3.3V/5V

SKU CH-BT4D-004DC

2.9-inch e-paper shows 296×128 two-colour images via SPI, draws power only on refresh and retains the picture without backlight

  • Ultra-low power draw — only refreshes need current
  • Retains image without power — no backlight required
  • 9 inch 296×128 two-colour E-Ink screen
  • Works with 3.3 V and 5 V boards via onboard translator
  • SPI interface plus example code for Raspberry Pi, Arduino, STM32

2.9inch e-Paper Display 296x128

This 2.9inch e-Paper Display Module offers a 296x128 resolution for monochrome readouts. It targets makers building low-power IoT edge devices or development boards. The SPI interface connects directly to Raspberry Pi, Arduino or Nucleo platforms. Ultra-low power consumption means energy is only drawn during screen refreshes.

Onboard voltage translator and development resources

An onboard voltage translator enables compatibility with both 3.3V and 5V microcontrollers without extra circuitry. Supplied development resources and manuals include code examples for Raspberry Pi, Arduino and STM32. Partial refresh support allows updating small screen areas to further reduce power draw. No additional software licences are required to begin development.

No backlight and persistent image retention

The display operates without a backlight, relying on ambient light for visibility in everyday use. Content remains visible for a long time after power is removed, suiting battery-powered or intermittent-operation projects. The compact module mounts easily on breadboards or custom PCBs via standard pin headers. Builders needing colour graphics or video-rate animation should consider alternative display technologies.

Highlights

  • Ultra-low power draw — only refreshes need current
  • Retains image without power — no backlight required
  • 9 inch 296×128 two-colour E-Ink screen
  • Works with 3.3 V and 5 V boards via onboard translator
  • SPI interface plus example code for Raspberry Pi, Arduino, STM32

Specifications

BrandLORDWORLD

Questions about this item

Does the 296x128 panel or its controller need periodic replacement after many refresh cycles?

The e-paper panel is rated for long life; only the refresh operation draws power, so no scheduled replacement is needed under normal use.

What limits continuous operation first — the SPI bus speed or the panel refresh time?

The panel refresh cycle is the bottleneck; each full update takes several hundred milliseconds, so sustained use is limited by that interval.

How much heat or noise does the 2.9 inch module produce when refreshing repeatedly all day?

No backlight and ultra-low power draw mean it stays silent and barely warm even with frequent SPI-driven refreshes.

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