2.7inch E-Paper E-Ink Display HAT (B) For Raspberry Pi, 264×176 Pixels, Red / Black / White Three-Color, SPI Interface

2.7" E-PAPER HAT (B)
Low Power, Wide Viewing Angle, Paper-Like Displaying Without Electricity
Ideal for price tags, shelf labels, industrial instruments...

Features At A Glance:

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, Jetson Nano
SPI interface, for connecting with controller boards like Raspberry Pi/Arduino/STM32, etc.
Onboard voltage translator, compatible with 3.3V / 5V MCUs
Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)

Specifications:

OPERATING VOLTAGE 3.3V/5V
DISPLAY COLOR red, black, white
INTERFACE 3-wire SPI, 4-wire SPI
GREY SCALE 2
OUTLINE DIMENSIONS 73.50 × 56mm
FULL REFRESH TIME 15s
DISPLAY SIZE 57.288 × 38.192mm
REFRESH POWER 26.4mW (typ.)
DOT PITCH 0.217 × 0.217mm
STANDBY CURRENT <0.01uA (almost none)
RESOLUTION 264×176 pixels
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.