1. ആമുഖം
The Waveshare 2.13 inch Passive NFC-Powered e-Paper is an innovative display solution that utilizes passive NFC technology for both power and data transfer. This eliminates the need for internal batteries or complex wiring, offering a clean and energy-efficient display. It is designed for various applications requiring static, low-power displays that can be updated wirelessly via an NFC-enabled smartphone or NFC reader.
ചിത്രം: മുൻഭാഗം view of the Waveshare 2.13 inch Passive NFC-Powered e-Paper module.
2. പാക്കേജ് ഉള്ളടക്കം
പാക്കേജ് തുറക്കുമ്പോൾ എല്ലാ ഇനങ്ങളും നിലവിലുണ്ടെന്നും നല്ല നിലയിലാണെന്നും ദയവായി പരിശോധിക്കുക:
- 1 x 2.13inch NFC-Powered e-Paper module
3 പ്രധാന സവിശേഷതകൾ
- Passive NFC Technology: No battery required, eliminating battery life concerns and messy wiring.
- Wireless Powering & Data Transfer: Display content is refreshed wirelessly via NFC.
- ഊർജ്ജ സംരക്ഷണം: E-paper displays consume power only during refresh, retaining the image indefinitely without power.
- User-Friendly APP: An Android application is provided for easy content management and display refreshing.
- മോടിയുള്ള ഡിസൈൻ: Features a protective ABS case for enhanced durability and lightweight handling.
Image: Visual representation of the e-Paper's key features, including NFC technology, no battery requirement, app support, and protective casing.
4. സജ്ജീകരണവും പ്രവർത്തനവും
4.1 ഇത് എങ്ങനെ പ്രവർത്തിക്കുന്നു
The e-Paper display operates on a passive NFC principle. To update the display content, you need an NFC-enabled device, such as a smartphone or a dedicated NFC reader (e.g., ST25R3911B NFC Board). Simply bring the NFC device close to the e-Paper module. The NFC field will provide the necessary power for the e-Paper to refresh its display, and simultaneously transfer the new data.
Image: Flowchart demonstrating the interaction between an NFC-enabled smartphone and the e-Paper for wireless power and data transfer.
4.2 Installing the Android Application
An Android application is provided to facilitate easy content refreshing. Please note that this application may not be available on the Google Play Store and might require direct download from the manufacturer's website. Ensure your device allows installation from unknown sources if prompted.
- Visit the official Waveshare wiki page for the 2.13inch NFC-Powered e-Paper to find the download link for the Android APP.
- APK ഡൗൺലോഡ് ചെയ്യുക file to your Android smartphone.
- Open the downloaded APK file ആപ്ലിക്കേഷൻ ഇൻസ്റ്റാൾ ചെയ്യുന്നതിന് സ്ക്രീനിലെ നിർദ്ദേശങ്ങൾ പാലിക്കുക.
- Grant necessary permissions to the application when prompted.
4.3 Refreshing the Display Content
Once the application is installed, refreshing the display is a straightforward process:
- Open the Waveshare NFC e-Paper application on your Android smartphone.
- Select the image or text you wish to display on the e-Paper. The application typically allows you to load pre-downloaded images or generate text.
- Position your smartphone's NFC antenna (usually near the top or center of the phone) directly over the e-Paper module.
- Maintain contact until the refresh process is complete. The application will usually show a progress indicator (e.g., percentage counter). The e-Paper screen may flash several times (white to black and back) during the refresh.
- Once the progress reaches 100% and the e-Paper has finished flashing, you can remove your phone. The new content should now be displayed.
Note: The refresh time is approximately 2 seconds (excluding data transfer time).
Image: A smartphone held over the e-Paper, demonstrating the wireless NFC refresh process, highlighting the absence of batteries and wires.
5. പരിപാലനം
The Waveshare NFC-Powered e-Paper requires minimal maintenance due to its passive design:
- വൃത്തിയാക്കൽ: Use a soft, dry cloth to gently wipe the display surface. Avoid abrasive cleaners or excessive moisture.
- സംഭരണം: നേരിട്ടുള്ള സൂര്യപ്രകാശത്തിൽ നിന്നും കടുത്ത താപനിലയിൽ നിന്നും മാറി തണുത്തതും വരണ്ടതുമായ സ്ഥലത്ത് ഉപകരണം സൂക്ഷിക്കുക.
- ബാറ്ററി മാറ്റിസ്ഥാപിക്കൽ ഇല്ല: As the device is battery-free, there is no need for battery replacement or charging.
- വയറിംഗ് ഇല്ല: The absence of wiring means no cable management or connection checks are required.
6. പ്രശ്നപരിഹാരം
- Display Not Refreshing:
- Ensure your smartphone's NFC function is enabled.
- Verify the correct positioning of your smartphone's NFC antenna over the e-Paper. The optimal position is usually near the top of the phone.
- Keep the phone steady and in contact with the e-Paper throughout the entire refresh process until the application indicates completion.
- If the app shows an error after successful refresh, this can sometimes be normal; check the e-Paper display itself for the updated content.
- Android App Installation Issues:
- If you downloaded the APK directly, ensure your phone's security settings allow installation from "Unknown Sources."
- Download the latest version of the app from the official Waveshare wiki page.
- Display Content Fades Over Time:
- E-paper displays are designed to hold an image indefinitely without power. If fading occurs, it might indicate an issue with the display itself or external factors like extreme temperature fluctuations. Re-refresh the display.
7 സ്പെസിഫിക്കേഷനുകൾ
| പരാമീറ്റർ | മൂല്യം |
|---|---|
| വൈദ്യുതി വിതരണം | Wireless (NFC-powered) |
| ഗ്രേ സ്കെയിൽ | 2 |
| ഡിസ്പ്ലേ കളർ | കറുപ്പ് / വെള്ള |
| റെസലൂഷൻ | 250 × 122 പിക്സലുകൾ |
| ഡിസ്പ്ലേ വലിപ്പം | 49.70 മില്ല്യൺ 21.75 മില്ലി |
| ഡോട്ട് പിച്ച് | 0.194 × 0.194 മിമി |
| ഔട്ട്ലൈൻ ഡൈമൻഷൻ | 65.35 മില്ല്യൺ 40.05 മില്ലി |
| പുതുക്കിയ സമയം | ~2 seconds (data transfer time not included) |
| Viewing ആംഗിൾ | >170° |
| ഇനത്തിൻ്റെ ഭാരം | 0.704 ഔൺസ് (0.02 കിലോഗ്രാം) |
| ഉൽപ്പന്ന അളവുകൾ | 2.57 x 1.58 x 1.58 inches (65.35mm L x 40.05mm W x 7.10mm Th) |
ചിത്രം: മുന്നിലും പിന്നിലും view of the e-Paper module, alongside a table detailing its technical specifications.
Image: Detailed dimensional drawing of the e-Paper module, showing all key measurements in millimeters.
8. ആപ്ലിക്കേഷൻ Exampലെസ്
The versatility and passive nature of the Waveshare NFC-Powered e-Paper make it suitable for a wide range of applications, including but not limited to:
- വില Tags: Dynamic pricing updates in retail environments.
- Asset/Equipment Tags: Tracking and identification of assets without needing internal power.
- Shelf Labels: Digital labels for product information and promotions.
- കോൺഫറൻസ് നാമം Tags: Customizable and reusable name badges for events.
- IoT Displays: Low-power display for various Internet of Things projects.
- Information Boards: Small, updateable information displays.
9. വാറൻ്റിയും പിന്തുണയും
For technical support, documentation, and further resources, please visit the official Waveshare website or their dedicated product wiki page. Information regarding warranty policies can typically be found on the manufacturer's official channels or through your point of purchase.
For the most up-to-date information and detailed guides, refer to the Waveshare Wiki for this product model. This resource often contains comprehensive tutorials, code exampപരിഹാരങ്ങളും പ്രശ്നപരിഹാര നുറുങ്ങുകളും.
