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From version < 116.1 >
edited by Dilisi S
on 2024/12/17 21:42
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Change comment: Dec 22 edits - part 3

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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 -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.
110 +This getting started example demonstrates how to design and deploy a simple display UI for the LTS5 device. The example includes:
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.
112 112  
116 +By completing this demo, you will gain foundational knowledge for customizing the LTS5 interface and building more advanced IoT applications.
117 +
118 +
113 113  == 2.2  Install Software Running Environment ==
114 114  
115 115  
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.
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.
117 117  
118 118  
119 -=== 2.2.1 Install VSCode and ESP-IDF extension ===
125 +=== 2.2.1 Install VS Code and ESP-IDF extension ===
120 120  
121 121  
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]].
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]].
123 123  
124 -Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
130 +Next, install the **ESP-IDF** extension within **VS Code**. Detailed steps for this process are shown in Image 1.
125 125  
132 +
126 126  [[image:image-20240928110211-5.png||height="508" width="866"]]
127 127  
128 - image 1 ESP-IDF extension install
135 + Image 1: ESP-IDF extension install
129 129  
130 130  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]]
131 131  
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133 133  === 2.2.2 Install SquareLine Studio ===
134 134  
135 135  
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]].
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.
137 137  
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.
145 +[[image:squareline.io_downloads.png]]
139 139  
140 140  
141 -== 2.3 Simple usage of SquareLine Studio and export UI code ==
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:
142 142  
150 +* Max. 10 screens
151 +* Max. 150 widgets
152 +* Max. 5 global colors
153 +* Max. 2 themes
154 +* Max. 1 component
143 143  
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.
156 +== 2.3 Simple usage of SquareLine Studio and exporting UI code ==
145 145  
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 +
146 146  [[image:image-20240928103357-2.png||height="680" width="708"]]
147 147  
148 - image 2 create a SquareLine project
169 + Image 2: Creating a new SquareLine project
149 149  
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.
151 151  
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 +
152 152  [[image:1727229582471-566.png]]
153 153  
154 - image 3 project settings
178 + Image 3 accessing project settings
155 155  
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 +
156 156  [[image:image-20240928105309-4.png||height="526" width="556"]]
157 157  
158 - image 4 modify project settings
189 + Image 4 Configure/modify project settings
159 159  
160 -Now we can start to use this software. Here are some usage information for this software.
161 161  
162 -**~1. add widget**
192 +Now you can start building the sample UI. Follow the steps below:
163 163  
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.
165 165  
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 +
166 166  [[image:image-20240928111412-6.png||height="526" width="864"]]
167 167  
168 - image 5 add widgets
203 + Image 5: Add widgets
169 169  
170 -**2. modify widget**
205 +=== Modify widget properties ===
171 171  
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".
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.
173 173  
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 +
174 174  [[image:1727485118799-984.png]]
175 175  
176 - image 6 the button widget's "Inspector" tab
213 + Image 6: The button widget's "Inspector" tab
177 177  
178 -Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
179 179  
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 +
180 180  [[image:1727485251053-655.png]]
181 181  
182 182  image 7 the button widget's "BUTTON" tab
183 183  
226 +
184 184  Third part: It is an area of style setting.
185 185  
186 186  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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189 189  
190 190   image 8 add event for button
191 191  
192 -**3. change label widget content**
193 193  
194 -Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
236 +==== Changing the label properties ====
195 195  
238 +Click the label. Under the **Label** section, type "Hello World!" in the **Text** textbox.
239 +
240 +
196 196  [[image:image-20240928090825-1.png||height="327" width="391"]]
197 197  
198 - image 9 modify text content of label widget
243 + Image 9:  Modify text of label widget
199 199  
200 -**4. Add image into project**
201 201  
246 +==== 4. Changing image properties ====
247 +
202 202  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.
203 203  
204 204  [[image:image-20240928113424-9.png||height="355" width="505"]]
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221 221  
222 222   image 13 move label1 to make label1 widget be a child of button1 widget(2)
223 223  
224 -**6. Preview the final effect**
225 225  
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.
271 +**6. Preview the screen**
227 227  
273 +You can test the result by clicking on the **PLAY** button. The screen will change into play mode.
274 +
228 228  [[image:1727487368023-281.png]]
229 229  
230 230   image 14 click on the triangle icon to start or end the simulation
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