Overview This is an E-Ink display module, 1.54inch, 200x200 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on. Specifications Operating voltage: 3.3V/5V Interface: 3-wire SPI, 4-wire SPI Outline dimension: 48mm × 33mm Display size: 27.6mm × 27.6mm Dot pitch: 0.138 × 0.138 Resolution: 200 × 200 Display color: black, white Grey level: 2 Partial refresh time: 0.3s Full refresh time: 2s Refresh power: 26.4mW(typ.) Standby power: <0.017mW Viewing angle: >170° Package include 1. 1.54inch e-Paper Module x1 2. PH2.0 20cm 8Pin x1