Waveshare 3.5inch Dot Matrix e-Paper Display User Manual

1. Product Overview

The Waveshare 3.5inch Dot Matrix e-Paper Display is part of the Electronic Shelf Label (ESL) series, designed for displaying dynamic information such as prices, product details, or other data. These displays feature a red/yellow/black/white 4-color e-paper screen, offering high readability and ultra-low power consumption. They retain the displayed content even when powered off, making them ideal for applications requiring long-term static displays with occasional updates.

This product includes 10 units of the ESL-ePaper-3.5G display, equipped with built-in replaceable batteries for extended operational life and housed in durable ABS plastic cases for protection.

Image: Waveshare e-Paper displays in various application scenarios, demonstrating their use as electronic shelf labels.

2. Key Features

• 4-Color E-Paper Display: Features red, yellow, black, and white colors for clear and vibrant information display.
• No Backlight: Content remains visible indefinitely without power, offering excellent readability in ambient light.
• Ultra-Low Power Consumption: Power is primarily consumed only during content refreshing, leading to extended battery life.
• Cloud Platform Support: Enables image refreshing via the ESL-Gateway-AP base station, facilitating remote updates.
• Wide Operating Temperature: Designed to operate within 0°C to 40°C, suitable for common retail and industrial environments.
• Long Battery Life: Built-in replaceable battery provides an ultra-long life of approximately 5 years.
• Durable Construction: Encased in ABS plastic for dustproof protection and enhanced durability.

Image: Visual representation of the key features and different ESL e-Paper display sizes available.

3. Package Content

Your package should contain the following items:

• 10 x ESL-ePaper-3.5G Displays

Image: Representation of the package content, showing one ESL-ePaper-3.5G display and indicating a quantity of 10 units.

4. Setup and Operation

4.1. System Requirements

To utilize the Waveshare ESL e-Paper displays for dynamic content refreshing, an ESL-Gateway-AP Base Station is required. This base station acts as the central hub for communication between your cloud platform and the e-paper displays.

• ESL-Gateway-AP Base Station (sold separately)
• Internet connection for cloud platform access
• Smart phone or tablet for management (optional, via cloud platform)

4.2. Initial Setup

1. Power On Base Station: Connect the ESL-Gateway-AP Base Station to a power source (48V PoE supported).
2. Network Connection: Ensure the base station is connected to your network (Wi-Fi 2.4GHz + 5GHz supported).
3. Cloud Platform Integration: Access the ESL Waveshare Cloud Platform (esl.waveshare.cloud) via a web browser. Follow the platform's instructions to register your base station and displays.
4. Display Pairing: The e-paper displays will automatically connect to the base station within its coverage range (10-30m indoors). Specific pairing steps may be detailed in the ESL-Gateway-AP Base Station manual or the cloud platform interface.

Image: Overview of the Wireless BLE Base Station and its role in the ESL Waveshare Cloud Platform ecosystem.

4.3. Refreshing Content

Content on the e-paper displays is refreshed through the ESL Waveshare Cloud Platform. This platform allows you to upload new images or data, which are then transmitted wirelessly to the displays via the ESL-Gateway-AP Base Station.

1. Prepare Content: Create or select the image/text content you wish to display. Ensure it is formatted correctly for the 3.5inch display (384 x 184 pixels resolution).
2. Upload to Cloud Platform: Use the cloud platform interface to upload your prepared content.
3. Assign to Displays: Assign the uploaded content to specific e-paper displays or groups of displays.
4. Initiate Refresh: Trigger the refresh command from the cloud platform. The base station will then transmit the new content to the assigned displays.

Note: The e-paper displays only consume significant power during the refresh process. Once the content is displayed, they require no power to maintain the image.

5. Maintenance

5.1. Cleaning

To clean the display surface, gently wipe it with a soft, dry, lint-free cloth. For stubborn smudges, slightly dampen the cloth with water. Avoid using abrasive cleaners, solvents, or excessive moisture, as these can damage the display or casing.

5.2. Battery Replacement

The e-paper displays are equipped with replaceable batteries designed for approximately 5 years of life. When the battery level is low, the display may indicate this or fail to refresh content. Refer to the specific instructions provided with the display or on the Waveshare Wiki for detailed steps on how to safely open the ABS case and replace the battery.

Always ensure the device is powered off before attempting battery replacement. Use only compatible replacement batteries.

6. Troubleshooting

• Display Not Refreshing:
  • Ensure the ESL-Gateway-AP Base Station is powered on and connected to the internet.
  • Verify the e-paper display is within the base station's coverage range (10-30m indoors).
  • Check the battery level of the e-paper display. Replace if necessary.
  • Confirm the content is correctly uploaded and assigned on the cloud platform.
• Display Shows Partial or Corrupted Image:
  • Attempt to refresh the display again from the cloud platform.
  • Ensure the image resolution and format are compatible with the display (384 x 184 pixels for 3.5inch).
  • Check for any physical damage to the display.
• Base Station Connectivity Issues:
  • Restart the base station.
  • Check network cables or Wi-Fi connection.
  • Verify router settings and internet access.

For further assistance, please refer to the official Waveshare Wiki resources or contact Waveshare customer support.

7. Specifications

7.1. ESL-ePaper-3.5G Display Specifications

Image: Detailed specifications for ESL e-Paper displays, including the 3.5-inch model.

7.2. ESL-Gateway-AP Base Station Specifications (for reference)

8. Application Examples

The Waveshare ESL e-Paper displays are versatile and can be used in various settings:

• Supermarkets and Retail Stores: For dynamic pricing, product information, and promotions.
• Cashier-less Stores: Automated product identification and pricing.
• Shelf Labels: Clear and easily updatable labels for inventory management.
• Foodstuff Stores: Displaying ingredients, allergens, and pricing.
• Hospital Wards: Patient information, room status, or staff directories.
• Conference Venues: Meeting room schedules, attendee names, or event information.

Image: Examples of the e-Paper display's application in different commercial and institutional settings.

9. Outline Dimensions

The following diagrams provide the physical dimensions of the ESL-ePaper-3.5G display and the ESL-Gateway-AP Base Station (all units in millimeters).

Image: Detailed outline dimensions for the ESL-ePaper displays and the ESL-Gateway-AP Base Station.

10. Warranty and Support

For warranty information and technical support, please refer to the official Waveshare website or contact their customer service directly. Waveshare provides rich Wiki resources for their products, which can be accessed for detailed documentation, tutorials, and software examples.

Official Wiki Resources: https://www.waveshare.com/wiki/