Last modified by Dilisi S on 2025/02/26 19:24
<
From version < 122.1 >
edited by Dilisi S
on 2024/12/23 04:44
To version < 116.1 >
edited by Dilisi S
on 2024/12/17 21:42
>
Change comment: Dec 17 edits - part 1

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102 102  * Smart Cities
103 103  * Smart Factory
104 104  
105 -= 2.  Getting Started with 'Hello World' =
105 += 2.  Getting Started with Hello World =
106 106  
107 107  == 2.1  About this demo ==
108 108  
109 109  
110 -This getting started example demonstrates how to design and deploy a simple display UI for the LTS5 device. The example includes:
110 +In this Getting Started Example, we will show how to design a simple Display UI and upload it to LTS5. This UI has  a button , when user click the button. The Web UI will jump to a new page.
111 111  
112 -* Creating a basic UI with a single button.
113 -* Implementing functionality to navigate the Web UI to a new page when the button is clicked.
114 -* Uploading the UI to the LTS5 device.
115 115  
116 -By completing this demo, you will gain foundational knowledge for customizing the LTS5 interface and building more advanced IoT applications.
117 -
118 -
119 119  == 2.2  Install Software Running Environment ==
120 120  
121 121  
122 -The **ESP MCU** supports development with **ESP-IDF**, **Arduino**, or **MicroPython**. We use **ESP-IDF** for compilation and **Visual Studio Code (VS Code)** as the development environment for this project.
116 +The ESP MCU can be developed using ESP-IDF, Arduino, or MicroPython. For this project, we utilize ESP-IDF for compilation and Visual Studio Code (VSCode) for editing.
123 123  
124 124  
125 -=== 2.2.1 Install VS Code and ESP-IDF extension ===
119 +=== 2.2.1 Install VSCode and ESP-IDF extension ===
126 126  
127 127  
128 -First, download and install **VS Code** for your operating system from the Visual Studio Code website: [[Visual Studio Code - Mac, Linux, Windows>>https://code.visualstudio.com/download]].
122 +Firstly, download and install VSCode for your computer's operating system from the official website: [[Download Visual Studio Code - Mac, Linux, Windows>>url:https://code.visualstudio.com/download]].
129 129  
130 -Next, install the **ESP-IDF** extension within **VS Code**. Detailed steps for this process are shown in Image 1.
124 +Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
131 131  
132 -
133 133  [[image:image-20240928110211-5.png||height="508" width="866"]]
134 134  
135 - Image 1: ESP-IDF extension install
128 + image 1 ESP-IDF extension install
136 136  
137 137  Links for reference: [[Install ESP32 ESP-IDF on Windows and Integrate with VS code (esp32tutorials.com)>>url:https://esp32tutorials.com/install-esp32-esp-idf-windows-integrate-vs-code/#:~~:text=In%20this%20tutorial,%20we%20will%20show%20you%20how%20to%20install]]
138 138  
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140 140  === 2.2.2 Install SquareLine Studio ===
141 141  
142 142  
143 -Download and install the latest version of [[SquareLine Studio>>https://squareline.io/downloads#lastRelease]] on your computer. It supports Windows, Linux, and Mac OS. The software version we are using here is 1.4.2.
136 +The version we are utilizing for this software is 1.4.2. You can download it from the official link: [[SquareLine Studio - Download the current version of SquareLine Studio>>url:https://squareline.io/downloads#lastRelease]].
144 144  
145 -[[image:squareline.io_downloads.png]]
138 +Please note that this software necessitates the registration of a license prior to usage, and various licenses come with distinct limitations. For instance, the free version imposes restrictions such as a limit of 1 component, 150 widgets, and 10 screens. However, for first-time downloads, you are granted unrestricted access for a period of 30 days without the need for immediate registration.
146 146  
147 147  
148 -After installation, you can use SquareLine Studio with a **PERSONAL license plan**. Click **LOG IN** and create a free account using your email address. Then activate your PERSONAL license plan for free. You don’t need to provide any credit card information. However, the PERSONAL license plan has the following limitations:
141 +== 2.3 Simple usage of SquareLine Studio and export UI code ==
149 149  
150 -* Max. 10 screens
151 -* Max. 150 widgets
152 -* Max. 5 global colors
153 -* Max. 2 themes
154 -* Max. 1 component
155 155  
156 -== 2.3 Simple usage of SquareLine Studio and exporting UI code ==
144 +After launching and logging in to this software, create a project as shown in the following image 2. The version of LVGL is 8.3.11.
157 157  
158 -
159 -After launching and logging into the software, create a new project as shown in Image 2.
160 -
161 -* Select the major **LVGL** version as **8.3**.
162 -* Select the **Desktop** tab.
163 -* Select  **Eclipse with  SDL for  development on PC**:
164 -* In the **PROJECT SETTINGS**, select **LVGL version** **8.3.11**
165 -* Select the **CREATE **button.
166 -
167 167  [[image:image-20240928103357-2.png||height="680" width="708"]]
168 168  
169 - Image 2: Creating a new SquareLine project
148 + image 2 create a SquareLine project
170 170  
150 +Next, we need to make some settings for this project. By clicking in the specified order on image 3, we can see the page as shown in image 4.
171 171  
172 -Next, you need to configure some settings for this project. By clicking in the specified order shown in Image 3, you will be directed to the page displayed in Image 4.
173 -
174 -* Select** File  -> Project Settings**
175 -
176 176  [[image:1727229582471-566.png]]
177 177  
178 - Image 3 accessing project settings
154 + image 3 project settings
179 179  
180 -
181 -In the PROJECT SETTINGS dialog box, configure/modify the project settings:
182 -
183 -* **UI Files Export Root**: Select a folder on your computer to store the UI files.
184 -* **LVGL Include Path**: Set this to **lvgl.h**
185 -* **Click on the APPLY CHANGES button.**
186 -
187 187  [[image:image-20240928105309-4.png||height="526" width="556"]]
188 188  
189 - Image 4 Configure/modify project settings
158 + image 4 modify project settings
190 190  
160 +Now we can start to use this software. Here are some usage information for this software.
191 191  
192 -Now you can start building the sample UI. Follow the steps below:
162 +**~1. add widget**
193 193  
164 +To add a widget, you should click a widget you want to add at the area entitled “Widgets”. In image , demonstrate a add process of label, button, and image 5.
194 194  
195 -=== Add widgets ===
196 -
197 -To add widgets navigate to the **Widgets** area, then click on the widgets you want to add. The selected widgets will be added to the screen. You can reposition the widgets in the screen area by clicking and dragging them.
198 -
199 -Add a Label, Button, and Image to the screen as shown in **Image 5**.
200 -
201 201  [[image:image-20240928111412-6.png||height="526" width="864"]]
202 202  
203 - Image 5: Add widgets
168 + image 5 add widgets
204 204  
205 -=== Modify widget properties ===
170 +**2. modify widget**
206 206  
207 -The area for modifying widgets is called the **Inspector** tab. The Inspector tab consists of four sections: **COMPONENT**, **<WIDGET>**, **STYLE SETTINGS**, and **EVENTS**, as shown in Image 6.
172 +The area for modifying widgets is called "Inspector". There are four parts in the "Inspector" tab. We use three of them more frequently, excluding "COMPONENT". The second part is aimed at adjusting the layout, size, position, alignment, flags, and states, etc. of widgets. The name of the second part indicates the type of widget it is representing, and in image 6, it is "BUTTON".
208 208  
209 -The second section allows you to adjust a widget's layout, size, position, alignment, flags, states, and more. When you select a widget on the screen, the name of this section changes to match the name of the selected widget.
210 -
211 211  [[image:1727485118799-984.png]]
212 212  
213 - Image 6: The button widget's "Inspector" tab
176 + image 6 the button widget's "Inspector" tab
214 214  
178 +Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
215 215  
216 -==== Changing the Button properties ====
217 -
218 -Click the Button. Under the **Label** section, type "Click for details..." in the **Text** textbox.
219 -
220 -Under the "Layout" you can
221 -
222 222  [[image:1727485251053-655.png]]
223 223  
224 224  image 7 the button widget's "BUTTON" tab
225 225  
226 -
227 227  Third part: It is an area of style setting.
228 228  
229 229  Fourth part: It is an area for adding events. In image 8, it is adding a click event to a button. If the button is clicked after the click event is added as shown in image 8, the current screen will fade into another specified screen, and the switching process will last 500ms.
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232 232  
233 233   image 8 add event for button
234 234  
192 +**3. change label widget content**
235 235  
236 -==== Changing the label properties ====
194 +Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
237 237  
238 -Click the label. Under the **Label** section, type "Hello World!" in the **Text** textbox.
239 -
240 -
241 241  [[image:image-20240928090825-1.png||height="327" width="391"]]
242 242  
243 - Image 9:  Modify text of label widget
198 + image 9 modify text content of label widget
244 244  
200 +**4. Add image into project**
245 245  
246 -==== 4. Changing image properties ====
247 -
248 248  To use the image widget, you should first add an image to your project. The image format must be PNG, and its resolution should not exceed 800x480 pixels. There are two ways to add an image file. One way is to move your image into the folder "…/squareline project/assets/", as shown in image 10. The other way is to click the "ADD FILE INTO ASSETS" button, then select an image from your computer to import. After adding, you can see the image in the "assets" area in SquareLine Studio, as demonstrated in image 11.
249 249  
250 250  [[image:image-20240928113424-9.png||height="355" width="505"]]
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267 267  
268 268   image 13 move label1 to make label1 widget be a child of button1 widget(2)
269 269  
224 +**6. Preview the final effect**
270 270  
271 -**6. Preview the screen**
226 +An advantage of this kind of software is that you can edit the UI with quick previews. In other words, it provides a way of combining graphical programming with simulation immediately.
272 272  
273 -You can test the result by clicking on the **PLAY** button. The screen will change into play mode.
274 -
275 275  [[image:1727487368023-281.png]]
276 276  
277 277   image 14 click on the triangle icon to start or end the simulation
squalreline-trial.png
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