1.54 inch E-ink Display Module This is an E-Ink display or electronic ink display module, 1.54inch, 200x200 resolution, with an embedded controller, communicating via SPI interface, supports partial refresh. E-Ink display is communicating via SPI interface and it supports partial refresh. As these electronic ink displays have no backlight panels and it doesn’t need a continuous power supply to display the (static data with periodic intervals) data on the screen, The E-Ink display has a great advantage of ultra-low power consumption. Package Includes: 1 x 1.54 inch E-ink Display Module E-Ink Display Specifications Operating Voltage (VDC) 3.3V/5V Interface 3-wire SPI, 4-wire SPI Display Resolution 200 x 200 Display Size (inch) 1.54 Dimensions 48 x 34 x 10(mm) Weight  20 grams