3.52inch 3 Color E-Paper Display (B) 3.52inch e-Paper display with 360 × 240 resolution, red / black / white display color, SPI interface, low power consumption, and optional driver board support. Designed for price tags, shelf labels, industrial instruments, asset labels, conference name tags, and other low-power display applications. Key Features 3.52inch e-paper display with 360 × 240 resolution and red / black / white three-color output. No backlight; the screen keeps displaying the last content for a long time even after power is removed. Ultra-low power consumption, with power mainly required during refresh. Wide viewing angle and paper-like visual effect under ambient light. SPI communication interface for controller boards such as Raspberry Pi, Jetson series, RDK X3, Arduino, and STM32. Optional driver board provides Raspberry Pi 40PIN GPIO header and onboard voltage translator for 3.3V / 5V MCUs. Version Options 3.52inch e-Paper (B) Raw display version without driver board. 3.52inch e-Paper HAT (B) Version with driver board. Specifications Operating voltage Raw display: 3.3V; with driver board: 3.3V / 5V Interface 3-wire SPI, 4-wire SPI Display color Red / Black / White Resolution 360 × 240 pixels Raw display dimensions 84.70 × 54.41 × 0.85mm With driver board dimensions 86.50 × 57.00mm Display size 74.51 × 49.67mm Dot pitch 0.207 × 0.207mm Grey scale 2 Full refresh time 16s Refresh power
