2.13inch NFC-Powered e-Paper (G) User Guide

User Guide

For the convenience of use, we provide a mobile app. Please make sure that your telephone supports the NFC function and is enabled.

App Test on Mobile Phones

NFC Sensing Location Reference

Android APP

Demo Download

You can scan the QR code below to download and install the APP on your phone, note that the app can only support Android 4.0 (Ice Cream Sandwich) and above. Note: Do not scan with WeChat, please use the scanning function of your browser

Usage Steps

The steps to use the app are:

• 1. Click Binding device button to read the device information to be refreshed first; After the binding is complete, the corresponding information will be displayed on the main page

• 2. Click the "Album" icon to enter the album, then select the image you want to display, confirm the selection, and you will then enter the following page

• 3. You can perform the corresponding processing on the image by selecting the corresponding button. Click the Import button to start importing the image (PS: If you have not separated the e-Paper screen and phone after binding, you need to re-contact it after separation)

• 4. Wait for the refresh to complete, expected 20s
• 5. Text operation, select the Text icon on the main page (PS: you also need to bind the device first)

• 6. Start drawing text, and you can choose the font size, color, and font of the text; Simply drag to adjust the position of the text in the image below;

Alternatively, you can choose to "Import background template image". This image must be consistent with the resolution of the e-Paper screen. After completing all the settings, click the "√" in the upper right corner to save the image and enter the image processing page, then proceed to step 3 above 

• 7. Palette operation, select the Palette icon on the main page (PS: you also need to bind the device first)

• 8. Start drawing shapes on the screen with your finger; the default brush is black with a width of 5. Click the gear in the lower right corner to access the brush selection, click the "√" in the upper right corner to save the image and enter the image processing page, then proceed to step 3 above

• 9. Shoot operation, select the Shoot on the main page (PS: you also need to bind the device first)

• 10. Shoot and take a screenshot of the image, then proceed to step 3 above

ST25R3911B NFC Board

Demo Download

• The reader has the program flashed in at the factory, so you can skip the program download and test it directly if you don't need to modify the program
• ST25R3911 NFC Board (NFC Board for short) provides a SW download interface, allowing users to connect a downloader via this interface to download the program to the driver board.
• After the program is downloaded, connect the reader's Micro USB port to the PC using a Micro USB cable

Demos for Image Refresh

• Connect the USB port of the reader to the computer or 5V power supply using USB first
• Copy the prepared monochrome bitmap to the TF card. Insert the TF card into the card slot of the NFC Board
• Connect the 5V power supply to the USB interface of the NFC Board
• The directory is displayed on the screen, and you can select the e-Paper display model and corresponding images to refresh by pressing the buttons

• Move the mouse to select the Update e-Paper option
• Select the display model to refresh based on the your display
• Select the corresponding image transfer method

• TF card reading image: Update E-paper SD

• Select an image (note that the image resolution should match the screen resolution)
• Confirm the image

• Serial transmission image: Update E-paper UART

• Send BMP format images via serial port (note that the image resolution should match the screen resolution)

• Place the coil of the NFC Board near the center of the NFC Powered e-paper
• Waiting for successful image updating

• 

  Select Demo

 
• 

  Select the display mode

 
• 

  Select image acquisition method(TF card)

 
• 

  Select image(TF card)

 
• 

  Confirm selection(TF card)

 
• 

  Read image from TF card(TF card)

 
• 

  Select image acquisition method(Serial port)

 
• 

  Wait for the image transmission (serial port)

 
• 

  Prompt to attach the reader coil to the display

 
• 

  Detect the display successfully

 
• 

  Configure the display

 
• 

  Updating

 
• 

  Update successfully and exit

• If prompted with refresh failure, please remove the reader and reposition for refresh
• 

Note: Due to the limited communication distance of NFC, please do not move the device during refreshing to improve the success rate.

Resources

Related Document

• Create a Scatter Plot using Photoshop
• 2.13inch e-Paper (G) V2 Datasheet (current version)

ST25R3911B NFC Board Related Resources

• Schematic
• ST25R3911B Reference Manual
• ST25R3911B Datasheet
• Demo (Quick refresh, default)
• Demo (Global refresh)
• Pictures for testing

Mobile App

• Android APP

FAQ

Support

Monday-Friday (9:30-6:30) Saturday (9:30-5:30)

Email: services01@spotpear.com