T5L screen handwriting input scheme application

神秘の宅叔

1.Introduction to DWIN Handing Scheme

T5L chip is responsible for the collection of handwriting trace points on the LCD screen and the real-time restoration of handwriting trace on the screen. And the LCM will display the text selected by users in the input text box.

2. Device initialization

When we supply DC 12V power to LCD screen, it display device initialization interface, as shown in figure 1.

3. Bring up the handwriting panel

Click any position on the text box to pop up the corresponding handwriting panel, as shown in Figure 3.

4. Handwriting input

Write in the handwriting area. After writing, the chip will recognize the corresponding matching text and display it in the text box to be selected.

Click the text in the text box to be entered. As shown in Figure 4.

Phrase association function:

After the text is selected and entered, the text box to be selected will display some associative phrases of the selected word.

5. Special function button

There are some special function buttons on the right side of the handwriting panel, including close, backspace, comma, period, and enter buttons.

Close function: click the "close" button on the right side of the handwriting panel to exit the handwriting input function and hide the handwriting panel.

Backspace function: click the "backspace" button on the right side of the handwriting panel to delete the last character or text entered in the text box.

Comma function: click the "comma" button on the right side of the handwriting panel to enter a comma in the text box.

Period function: click the "period" button on the right side of the handwriting panel to enter a period in the text box.

Enter function: click the "Enter" button on the right side of the handwriting panel, and the cursor position in the text box will switch to the next line.

demonstration video：