Elecrow CrowPanel ESP32 4.2-Inch SPI E-Paper HMI Display, 400 300, Black & White

The Elecrow CrowPanel ESP32 4.2-Inch SPI E-Paper HMI Display is a powerful ESP32 e-paper display designed for developers, makers, and IoT enthusiasts who need a low-power, high-visibility display solution. It features a 4.2-inch electrophoretic (E-Ink) screen with a 400 300 pixel resolution, delivering sharp black-and-white images that closely resemble printed paper.

Powered by the ESP32-S3 processor, the display communicates through the SPI interface, ensuring stable and efficient data transfer for embedded applications. Its hard-coated anti-glare surface and ultra-wide viewing angle provide excellent readability even under direct sunlight, while the pure reflective display technology eliminates the need for a backlight and keeps the displayed information visible even after power is removed.

The module also includes a TF card slot, BAT interface, UART0 interface, 210 GPIO expansion header, Home button, Back button, and rotary switch, offering excellent flexibility for custom development. Fully compatible with the Arduino IDE, this ESP32 HMI display is perfect for electronic shelf labels, smart price tags, wearable devices, smart home systems, e-readers, portable IoT projects, and industrial HMI applications.

Features:

• The CrowPanel 4.2-inch E-Paper display has a resolution of 400*300 in black and white and communicates via SPI. The main chip is the ESP32-S3, with a frequency of up to 240MHz.
• Pure reflection mode, no backlight required, totally depending on light reflection to display material, and the displayed content will not be lost even when the power is turned off.
• The hard-coated anti-glare display surface can keep the content visible even in direct sunshine;
• High contrast and high reflectivity create a sharper and more vibrant visual experience.
• Ultra-low power consumption and a partial refresh capability greatly save energy and extend battery life.
• Support complete viewing angle, vividly seen from all angles.
• Rich buttons and interfaces (such as GPIO, UART, and home buttons) for easy programming and operation.
• Install the Arduino IDE development environment for a pleasant development experience.

Where to Use:

• Electronic label: supermarket or shelf product information and pricing.
• E-book Reader
• Electronic business card: display the related participant information.
• Smart home and other applications.