E-paper might be the most lightweight and comfortable material to read. It reflects light instead of emitting light to mimic the experience of conventional paper reading. And in this way much less power is consumed.
A small e-paper shield is a driver shield for e-paper of 2.0-inch and 2.7-inch sizes. It is used for displaying texts, graphics, and images and supporting more than 170 languages. The upper surface of the shield is flat and clean, which gives great support to the e-paper attached to it.
Compatibility: Arduino Uno/Genuino UNO/Seeeduino v3/4/4.1
Operating Voltage: 3.3/5VDC
Operating Current (refresh screen):40mA
Interface Type: SPI, I/O
White Reflectance: above 35%
Contrast Ratio: above 8:1（t=2minutes）