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Product Description

2.9inch Touch E-Paper E-Ink Display HAT for Raspberry Pi

Capacitive Touch, Partial Refresh, Low Power, Wide Viewing Angle, Paper-Like Effect

Ideal for price tags, shelf labels, industrial instruments...

Features At A Glance

2.9inch capacitive touch ePaper module, 296×128 resolution
5-points touch support, user-defined wakeup gesture
No backlight, keeps displaying last content for a long time even when power down
Ultra low power consumption, basically power is only required for refreshing
Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
Reversed control interface, for connecting with controller boards like Arduino/STM32, etc.
Comes with development resources and manual (examples for Raspberry Pi)

Specifications

OPERATING VOLTAGE: 3.3V/5V

DISPLAY COLOR: black, white

INTERFACE: 3-wire SPI, 4-wire SPI

GREY SCALE: 2

OUTLINE DIMENSIONS: 89.10 × 42.70mm

PARTIAL REFRESH TIME: 0.3s

DISPLAY SIZE: 66.89 × 29.05mm

FULL REFRESH TIME: 2s

DOT PITCH: 0.227 × 0.226mm

REFRESH POWER: 26.4mW (typ.)

RESOLUTION: 296×128 pixels

STANDBY CURRENT: <0.01uA (almost none)

TOUCH POINTS: 5

VIEWING ANGLE: >170°

Advantages Of EINK

E-paper display utilizes microcapsule electrophoretic technology for displaying, the principle is: charged particles suspended in clear fluid will move to sides of microcapsule when electric field is applied, making the microcapsule become visible by reflecting ambient light, just as traditional printed paper.

E-paper display will clearly display images/texts under lamplight or natural light, requires no backlight, and features nearly up to 180° viewing angle. It is usually used as e-reader due to its paper-like effect.