3.7 inch e-Paper HAT 3.7inch E-Paper Display HAT for Raspberry Pi A 480 × 280 black-and-white e-paper HAT with 4 grey scales, SPI interface, Raspberry Pi 40PIN GPIO header, partial refresh support, and ultra-low power paper-like display. Key Features 3.7 inch e-paper panel with 480 × 280 resolution. Black and white display with 4 grey scales. Partial refresh support, with about 0.3s partial refresh time. Standard Raspberry Pi 40PIN GPIO header for Raspberry Pi series boards and Jetson Nano. SPI interface for Raspberry Pi, Jetson Nano, Arduino, STM32, and other controller boards. No backlight required; content remains visible after power is removed. Onboard voltage translator for 3.3V and 5V MCU compatibility. Specifications Operating voltage 3.3V / 5V Display color Black / White Interface 3-wire SPI / 4-wire SPI Grey scale 4 Resolution 480 × 280 pixels Display size 47.32 × 81.12mm Outline dimensions 58.0 × 96.5mm Full refresh time 3s Partial refresh time 0.3s Refresh power 50mW typ. Dot pitch 0.169 × 0.169mm Standby current
