1. හැඳින්වීම
This manual provides detailed instructions for the Waveshare 2.13-inch E-Paper E-Ink Display Module (Model: Pico-ePaper-2.13). This module is designed for use with the Raspberry Pi Pico, offering a low-power, partial refresh display solution. E-paper displays are known for their paper-like effect and ability to retain content without continuous power.
Figure 1: Waveshare 2.13-inch E-Paper Display Module displaying example අන්තර්ගතය.
2 ප්රධාන ලක්ෂණ
- පසුතල ආලෝකය නැත: The display retains its content indefinitely without power, making it highly energy-efficient.
- අතිශය අඩු බල පරිභෝජනය: Power is primarily required only during content refresh cycles.
- SPI Interface: Utilizes a Serial Peripheral Interface, requiring minimal I/O pins for communication.
- සංවර්ධන සම්පත්: Includes comprehensive development resources and a manual with Raspberry Pi Pico C/C++ and MicroPython examples.
- Direct Raspberry Pi Pico Attachment: Features an onboard female pin header for direct connection to a Raspberry Pi Pico.
රූපය 2: අවසන්view of the 2.13-inch E-Paper Module's features and specifications.
3. තාක්ෂණික පිරිවිතර
| විශේෂාංගය | වටිනාකම |
|---|---|
| මෙහෙයුම් වෙළුමtage | 3.3V |
| අළු පරිමාණය | 2 |
| අතුරු මුහුණත | 3-වයර් SPI, 4-වයර් SPI |
| Partial Refresh Time | 0.3s |
| දළ සටහන් මානයන් | 65.00 × 30.50 මි.මී. |
| Full Refresh Time | 2s |
| සංදර්ශක ප්රමාණය | 48.55 × 23.70 මි.මී. |
| Refresh Power | 26.4mW (වර්ගය.) |
| තිත තණතීරුව | 0.194 × 0.194 මි.මී. |
| පොරොත්තු ධාරාව | <0.01uA (almost none) |
| විභේදනය | 250×122 පික්සල |
| Viewing කෝණය | >170° |
| සංදර්ශක වර්ණය | කළු, සුදු |
Figure 3: Detailed technical specifications of the E-Paper module.
Figure 4: Outline dimensions of the 2.13-inch E-Paper module in millimeters.
4. පිහිටුවීම සහ සම්බන්ධ කිරීම
The Waveshare Pico-ePaper-2.13 module is designed for direct attachment to a Raspberry Pi Pico. Follow these steps for proper setup:
- Prepare Raspberry Pi Pico: Ensure your Raspberry Pi Pico is ready for use, with necessary firmware or operating system installed if required for your project.
- Align and Connect: Carefully align the female pin header on the E-Paper module with the male pins on your Raspberry Pi Pico. Gently press them together until fully seated. Ensure correct orientation to prevent damage.
- බල සැපයුම: Once connected, power the Raspberry Pi Pico via its USB port or other designated power input. The E-Paper module draws power directly from the Pico.
- මෘදුකාංග සැකසුම: Refer to the provided development resources for specific C/C++ or MicroPython examples to initialize and control the display. This typically involves configuring the SPI interface on the Pico.
Figure 5: Raspberry Pi Pico securely connected to the E-Paper module. Note: Raspberry Pi Pico is not included with the display module.
Figure 6: Raspberry Pi Pico with E-Paper module connected and powered via USB. Note: Raspberry Pi Pico is not included with the display module.
4.1 Pinout Definition
Understanding the pinout is crucial for advanced configurations or troubleshooting. The module uses an SPI interface.
Figure 7: Pinout definition for the Waveshare Pico-ePaper-2.13 module, showing connections for SPI, power, and control pins.
| පින් නම | විස්තරය |
|---|---|
| වී.එස්.වයි.එස් | බල ආදානය |
| GND | බිම |
| e-Paper_DC | දත්ත/විධාන පාලන පින් (දත්ත සඳහා ඉහළ, විධාන සඳහා අඩු) |
| e-Paper_CS | SPI chip select (low active) |
| e-Paper_CLK | SPI SCK පින් එක |
| e-Paper_DIN | SPI MOSI පින් එක |
| e-Paper_RST | External reset (low active) |
| e-Paper_BUSY | Busy status output |
5. මෙහෙයුම් මාර්ගෝපදේශය
Operating the Waveshare 2.13-inch E-Paper module involves programming your Raspberry Pi Pico to send display data via the SPI interface. Waveshare provides example code and libraries to facilitate this process.
5.1 Programming the Display
- Access Development Resources: Visit the official Waveshare product page or documentation portal for the Pico-ePaper-2.13 module. Here you will find example code in C/C++ and MicroPython.
- පුස්තකාල ස්ථාපනය කරන්න: Download and install any necessary libraries or drivers for your chosen programming language (e.g., MicroPython libraries for e-paper displays).
- ලෝඩ් Example කේතය: Upload the provided example code to your Raspberry Pi Pico. These examples typically demonstrate basic functions like displaying text, images, or performing partial/full refreshes.
- අන්තර්ගතය අභිරුචිකරණය කරන්න: Modify the example code to display your desired content. Pay attention to the display resolution (250x122 pixels) and color depth (black/white, 2 grey scales).
- Refresh Cycles: Understand the difference between full refresh (approx. 2 seconds) and partial refresh (approx. 0.3 seconds). Partial refresh is faster and consumes less power but may leave ghosting artifacts over time, requiring an occasional full refresh.
5.2 අයදුම්පතamples
The E-Paper module is versatile and suitable for various applications due to its low power consumption and persistent display capabilities.
රූපය 8: උදාamples of potential applications for the E-Paper module, such as price tags, shelf labels, and information displays in various environments.
6 රැකවරණය සහ නඩත්තුව
To ensure the longevity and optimal performance of your Waveshare E-Paper display module, follow these maintenance guidelines:
- පරිස්සමින් හැසිරවීම: E-paper displays are delicate. Avoid applying excessive pressure or bending the module, especially the flexible FPC cable.
- පිරිසිදු කිරීම: Use a soft, dry, lint-free cloth to gently wipe the display surface. Do not use liquid cleaners, solvents, or abrasive materials, as these can damage the screen.
- පාරිසරික තත්ත්වයන්: Operate and store the module within its specified temperature and humidity ranges. Avoid extreme temperatures, direct sunlight for prolonged periods, and high humidity.
- බල කළමනාකරණය: While the display retains content without power, ensure proper power-down sequences for the Raspberry Pi Pico to prevent data corruption or unexpected behavior.
- ස්ථිති විද්යුතය: Take precautions against electrostatic discharge (ESD) when handling the module, as electronic components can be sensitive to static.
7. දෝශ නිරාකරණය
If you encounter issues with your E-Paper display module, consider the following troubleshooting steps:
- Display Not Refreshing/Blank:
- Check all connections between the E-Paper module and the Raspberry Pi Pico. Ensure they are secure and correctly oriented.
- Verify the power supply to the Raspberry Pi Pico.
- Review your code for display initialization and refresh commands. Ensure the SPI interface is correctly configured.
- Confirm that the correct libraries for the Pico-ePaper-2.13 are installed and imported in your code.
- Ghosting or Image Retention:
- Ghosting is common with partial refreshes. Perform a full refresh periodically to clear the display completely.
- Ensure your refresh cycles are correctly implemented in your code.
- Incorrect Display Orientation:
- The display typically operates in portrait mode by default. If you require landscape orientation, check if your chosen library or example code supports rotation and how to implement it.
- Module Not Detected by Pico:
- Double-check the pin connections against the pinout diagram (Figure 7).
- Ensure the Raspberry Pi Pico is functioning correctly independently.
For further assistance, refer to the official Waveshare documentation and community forums.
8. සහාය සහ වගකීම්
For technical support, additional resources, and the latest documentation, please visit the official Waveshare website. You can typically find detailed product wikis, example code, and community forums there.
නිෂ්පාදකයා: Waveshare
Webඅඩවිය: www.waveshare.com
Information regarding product warranty is typically available on the Waveshare webවෙබ් අඩවිය හෝ ඔබේ මිලදී ගැනීමේ ලියකියවිලි සමඟ ඇතුළත් කර ඇත. වගකීම් හිමිකම් සඳහා කරුණාකර ඔබේ මිලදී ගැනීමේ සාක්ෂි තබා ගන්න.
