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- SKU: 09090
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Elecrow CrowPanel ESP32 4.2 Inch E-Paper HMI Display, 400×300 Resolution, SPI Interface
This CrowPanel ESP32 4.2” E-paper HMI display adopts advanced active matrix electrophoretic display technology and is equipped with a hard-coated anti-glare surface, which can keep the content clearly visible even in the sun, perfectly reproducing the appearance and reading experience of traditional paper. The built-in ESP32-S3 chip as the main control ensures powerful performance and fast and stable data transmission through the SPI interface. With a high resolution of 400*300, it provides a delicate display effect and adopts a classic black and white dual-color display to adapt to various application scenarios. It is also equipped with multiple interface and button designs, including TF card slot, BAT interface, UART0 interface, 2x10-pin GPIO interface, back button, menu button and rotary switch, which is convenient for users to develop and operate. The white acrylic shell is not only beautiful but also protects the screen.
Based on the ESP32 chip, another highlight is its wide compatibility. It is compatible with the Arduino IDE development environment, 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.
Due to its excellent characteristics such as low power consumption, high contrast and high reflectivity, this e-ink screen is widely used in shelf labels, price tags, badges, smart labels, smart home devices, e-readers, smart wearable devices and other portable devices, and is an ideal choice for various smart devices and applications.
User Manual / Datasheet / Example Codes Etc.
Features
- CrowPanel 4.2-inch E-Paper display, 400*300 resolution, black and white, using SPI interface communication;
- ESP32-S3 as the main chip, frequency up to 240MHz;
- 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, which can keep the content visible even under direct sunlight;
- High contrast and high reflectivity provide a clearer and more vivid visual experience;
- Ultra-low power consumption and partial refresh function, significantly saving energy and extending battery life;
- Support full viewing angle, clearly visible from any angle;
- Rich buttons and interfaces (such as GPIO interface, UART interface, home button, etc.) for easy development and operation;
- Equip with the Arduino IDE development environment for a smooth development experience.
Where to use
- 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.
Specifications
- Size: 4.2 inch
- MCU: ESP32-S3-WROOM-1-N8R8, up to 240 MHz
- Flash: 8 MB
- PSRAM: 8 MB
- WiFi: Support
- Material: Active Matrix Electrophoretic Display (AM EPD)
- Driver Chip: SSD1683
- Resolution: 400(H)*300(V) Pixel
- Pixel pitch: 0.212 × 0.212 mm
- Viewing Angle: Full Viewing Angle
- Communication interface: 3-/4-wire SPI
- Interface: UART0x1, BATx1(SH1.0-2P), GPIO x1, TF Card Slot x1
- Button: Rotary Switch x1, Menu Button x1, Back Button x1, Reset Button x1, BOOT Button x1
- Development Environment: Arduino IDE
- Display Color: Black and white
- Refresh Mode: Partial refresh (saves more power)
- Battery Input Voltage: 2.2~3.7V (BAT, SH1.0-2P)
- Case: White Acrylic Case
- Operating Temperature: 0~50℃
- Storage Temperature: -25~70℃
- Active Area: 84.8(H)*63.6(L)(H*L)
Package Includes
- 1x 4.2 inch E-Paper Display
- 1x USB Cable
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ short quantity/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
Unboxing video is mandatory to report damaged or short quantity of the items in the order.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)



