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CrowPanel ESP32 E-Paper HMI 3.7-inch Display

Description

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.

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.

Model: DIE01237S001

e-paper-3.7

Feature

  • 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.

Application

  • Electronic label: supermarket or shelf product information and price；
  • E-book reader；
  • Electronic business card: display the corresponding participant information；
  • Smart home and other applications

Specification

Item Descriptions
Size 3.7 inch
MCU ESP32-S3-WROOM-1-N8R8, up to 240 MHz
Flash 8 MB
PSRAM 8 MB
Material Active Matrix Electrophoretic Display (AM EPD)
Driver Chip UC8253
Resolution 240(H)x416(V) Pixel
Pixel pitch 0.196x0.196
Viewing Angle Full Viewing Angle
Communication interface 3-/4-wire SPI, default 4-wire SPI
Interface UART0x1, BATx1, GPIOx1, TF Card Slot x1
Button Rotary Switchx1, Menu Buttonx1, EXIT Buttonx1, REST Buttonx1, BOOT Buttonx1
Development Environment Arduino IDE、ESP IDF、MicroPython
Display Color Black and white
Refresh Mode Partial refresh (saves more power)
Operation Voltage 2.2~3.7V
Operation Temperature -0~50℃
Storage Temperature -25~70℃
Active Area 47.04(H)x81.54(L)(HxL)

Interfaces

3.7-e-paper-interface

Interface Name Description Module Type
MENU Button Used for custom programming.
Rotary Switch Used for custom programming.
EXIT Button Used for custom programming.
RST Reset button. Push it to reset the system.
BOOT The Boot button is mainly used to control the startup and download mode of the development board.
GPIO Reserved available GPIO pins.
TF Provide off-line save and extra storage space.
BAT Connect with the lithium battery. (With the battery charging circuit) SH1.0-2Pin socket
Type-C Provide serial communication, supply voltage and serial information printing.
3.7-inch Display Port Pin Number
MENU Button IO2
Rotary Switch Down(IO4); Up(IO6); CONF(IO5)
EXIT Button IO1
GPIO IO3; IO9; IO15; IO17; IO19; IO21; IO8; IO14; IO16; IO18; IO20; IO38
SD Card Slot(SPI) MOSI(IO40); MISO(IO13); CLK(IO39); CS(IO10)

Platforms Supported

Arduino IDE
Arduino
GetStarted

Resources

Schematic & PCB

Specifications

Certification

Demo Code

Arduino IDE