Instruction
This is an NFC-powered 7.5inch e-Paper Module, with 800x480 resolution. Users can transmit data from smartphone or NFC reader to e-Paper and refresh by NFC.
Features
- No backlight required, e-Paper keep displaying the last content for a long time without power
- No power adapter required
- You can modify the display content by smartphone
- Compe with ABS case
- App is provided
Specification
- Power: NFC-powered
- Resolution: 800x480
- Dot pitch: 0.205 × 0.204
- Refresh time: 5s
- Display color: black, white
- Viewing angle: >170°
User guide
You can scan the QR code to download and install the APP to your phone, note that the app can only supports Android 4.0(Ice Cream Sandwich) and above.
![NFCTag APP EN.png](https://einkcn.com/zb_users/upload/2020/03/20200330110230158553735062158.png)
- Click the picture button on the bottome to choose picture. You can choose the picture from DCIM or you take a picture by camera.
Except pictures from DCIM and camera, you can also make string picture manually.
- You can cut the picture after choosing, resize it and rotate. For best effect. we recommend you to pre-adjust the picture according to the resolution of e-Paper.
![4.2inch NFC-Powered epaper manual-7.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-7.png&width=300)
![4.2inch NFC-Powered epaper manual-8.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-8.png&width=300)
![4.2inch NFC-Powered epaper manual-9.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-9.png&width=300)
- In the main page, you can select the process effect ( None Effect, Gray Effect, Block Effect, Sketch Effect and Neon Effect)
- In the main page, you can clock the Adjust symbol on the left-bottom to adjust the brightness and contrast. You can also touch the "+" symbol on the right-bottom to adjust picture.
![4.2inch NFC-Powered epaper manual-10.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-10.png&width=300)
![4.2inch NFC-Powered epaper manual-11.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-11.png&width=300)
![4.2inch NFC-Powered epaper manual-12.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-12.png&width=300)
- After setting, close the NFC area of you phone to backside of 4.2inch NFC-Powered e-Paper to update it.
【Note】Make sure that you have open NFC function of your phone, and do not move phone when transmitting and updating.
![4.2inch NFC-Powered epaper manual-13.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-13.png&width=300)
![4.2inch NFC-Powered epaper manual-14.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-14.png&width=300)
![4.2inch NFC-Powered epaper manual-15.png](https://www.waveshare.com/w/thumb.php?f=4.2inch_NFC-Powered_epaper_manual-15.png&width=300)
- Other functions
![7in5-nfc-epaper-1.jpg](https://www.waveshare.com/w/thumb.php?f=7in5-nfc-epaper-1.jpg&width=300)
Resources
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