4.2inch NFC-Powered e-Paper
From Waveshare Wiki
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Instruction
This is an NFC-powered 4.2inch e-Paper Module, with 400x300 resolution. Users can transmit data from smart phone or NFC reader to e-Papre and refresh by NFC.
Features
- No backlight required, e-Paper keep displaying the last content for a long time without power
- No power adapter requried
- You can modify the display content by smart phone
- Compe with ABS case
- App is provided
Specification
- Power: NFC-powered
- Resolution: 400x300
- Dot pitch: 0x212x 0x212
- Refresh time: 4s
- Display color: black, white
- Viewing angle: >170°
- Outline dimension: 105.0mm x 94.1mm, 9.90mm
- Display dimension: 84.8mm x 63.6mm
User guide
You can download the app from #Resources and install it to your phone, note that the app can only supports Android 4.0(Ice Cream Sandwich) and above.
- Click the picture button on the bottome to choose picture. You can choose the picture from DCIM or you take a picture by camera.
- 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.
- 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.
- 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.
- Other functions
- You can also draw the picture. Click the "..." symbol on right-top , choose Gallery, touch one picture to enter drawing mode.
Resources
Support
Support
If you require technical support, please go to the Support page and open a ticket.