The Elecrow CrowPanel ESP32 1.54‑inch E‑paper HMI display delivers paper‑like readability in a compact, energy‑efficient package. It uses an active matrix electrophoretic display (AM EPD) with a hard‑coated, anti‑glare surface, ensuring excellent legibility even under bright sunlight. The screen runs in pure reflection mode—no backlight required—and retains displayed information even when the power is lost. Powered by an ESP32‑S3 main MCU clocked up to 240 MHz, it communicates via a 3‑ or 4‑wire SPI interface, providing reliable data transfer. The product includes multiple controls and interfaces: rotary switch, menu button, back button, reset and boot buttons, UART0, BAT interface, as well as a 2×10 pin GPIO connector. Developers can use Arduino IDE, ESP‑IDF, or MicroPython environments for development. With full viewing angle, high contrast and reflectivity, and an efficient partial refresh mode, this display module is ideal for low‑power and portable applications like shelf labels, e‑book readers, smart badges, or wearable devices. Its white acrylic enclosure gives both aesthetics and physical protection.