What is it?

This CrowPanel ESP32 3.7” E-paper HMI Display has a resolution of 240*416 and a classic black and white dual-color presentation, bringing a reading experience like paper. It has high contrast and reflectivity, and thanks to hard-coated anti-glare technology, ensures excellent visual performance under various lighting conditions. The built-in ESP32-S3 chip as the main control ensures powerful performance and fast and stable data transmission through the SPI interface.

It is also equipped with various interface and button designs, including BAT interface, UART0 interface, 2x10 pin GPIO interface, back button, home button and rotary switch switch, allowing developers to easily program and control. The white acrylic case is not only beautiful but also protects the screen.

Based on the ESP32 chip, another highlight is its wide compatibility. It is compatible with three development environments: Arduino IDE, ESP IDF, and MicroPython, simplifying the secondary development process. Also, its ultra-wide viewing angle design allows you to enjoy the same brilliant image from any angle. The ultra-low power consumption feature consumes only a small amount of power when refreshing, ensuring long-lasting battery life. Pure reflection mode means no backlight is required, and information remains clearly visible after power failure, without worrying about information loss.

Why did you make it?

This E-Paper display works in pure reflection mode, providing a comfortable reading experience close to paper. It is suitable for application scenarios such as shelf labels, price tags, badges, smart labels, and smart homes and is also an ideal choice for e-readers, smart wearable devices, and other portable devices.

Customization can be discussed for bulk orders.

What makes it special?

• 3.7-inch E-Paper display, 240*416 resolution, black and white, using SPI interface communication;
• ESP32-S3 as the main chip, frequency up to 240MHz;
• Support full viewing angle, clearly visible from any angle;
• High contrast and high reflectivity provide a clearer and more vivid visual experience;
• Pure reflection mode, no backlight required, completely relying on light reflection to display content, and the displayed content will not be lost even if the power is off;
• Hard-coated anti-glare display surface, it can keep the content clearly visible even under direct sunlight;
• Ultra-low power consumption and partial refresh function, significantly saving energy;
• Rich buttons and interfaces (such as GPIO interface, UART interface, home button, etc.) for easy development and operation；
• Support Arduino IDE, ESP IDF, and MicroPython development environment to get a smooth development experience.