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85	85	* Smart Cities
86	86	* Smart Factory
87	87
88		-= 2.  Getting Started with Hello World =
	88	+= 2.  Getting Start with Hello World =
89	89
90	90	== 2.1  About this demo ==
91	91
92		-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.
	92	+In this Getting Start 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.
93	93
94	94	== 2.2  Install Software Running Environment ==
95	95
...	...	@@ -101,9 +101,8 @@
101	101
102	102	Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
103	103
	104	+[[image:1727229396732-319.png]]
104	104
105		-[[image:image-20240928110211-5.png||height="508" width="866"]]
106		-
107	107	image 1 ESP-IDF extension install
108	108
109	109	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]]
...	...	@@ -119,9 +119,9 @@
119	119	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.
120	120
121	121
122		-[[image:image-20240928103357-2.png||height="680" width="708"]]
	121	+[[image:1727233636007-933.png]]
123	123
124		- image 2 create a SquareLine project
	123	+ image 2 create a SquareLine project
125	125
126	126	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.
127	127
...	...	@@ -129,89 +129,42 @@
129	129
130	130	image 3 project settings
131	131
	131	+[[image:1727229618724-758.png]]
132	132
133		-[[image:image-20240928105309-4.png||height="526" width="556"]]
134		-
135	135	image 4 modify project settings
136	136
137		-Now we can start to use this software. Here are some usage information for this software.
	135	+Now we can start to use this software. The steps for creating this UI are shown in image 5-10.
138	138
139		-**1.add widget**
	137	+[[image:1727229653254-680.png]]
140	140
141		-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.
	139	+ image 5 create a UI(1)
142	142
143		-[[image:image-20240928111412-6.png||height="526" width="864"]]
	141	+[[image:1727231038705-173.png]]
144	144
	143	+ image 6 create a UI(2)
145	145
146		- image 5 add widgets
	145	+[[image:1727229682537-381.png]]
147	147
148		-**2.modify widget**
	147	+ image 7 create a UI(3)
149	149
150		-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".
	149	+We repeat the steps of screen1 in screen2. Then we get screen2 as shown in image 8.
151	151
152		-[[image:1727485118799-984.png]]
	151	+[[image:1727229715361-392.png]]
153	153
154		- image 6 the button widget's "Inspector" tab
	153	+ image 8 create a UI(4)
155	155
156		-Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
	155	+Finally, we add click event for screen change to button1 in screen1(shown in image 9) and button2 in screen2.
157	157
158		-[[image:1727485251053-655.png]]
	157	+[[image:1727229740592-843.png]]
159	159
160		-image 7 the button widget's "BUTTON" tab
	159	+ image 9 create a UI(5)
161	161
162		-Third part: It is an area of style setting.
	161	+The event settings of button1 are as image 10 shown. The event adding operation of button2 is similar to button1.
163	163
164		-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, the current screen will fade into another specified screen, and the switching process will last 500ms.
	163	+[[image:1727229760857-521.png]]
165	165
166		-[[image:1727485480434-713.png||height="395" width="290"]]
	165	+ image 10 create a UI(6)
167	167
168		-
169		-
170		- image 8 add event for button
171		-
172		-**3.change label widget content**
173		-
174		-Modify the content in text, the text content of label widget will be changed accordingly.
175		-
176		-[[image:image-20240928090825-1.png||height="327" width="391"]]
177		-
178		- image 9 modify text content of label widget
179		-
180		-**4.Add image into project**
181		-
182		-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.
183		-
184		-[[image:image-20240928113424-9.png||height="355" width="505"]]
185		-
186		- image 10 add image file into SquareLine Studio project
187		-
188		-[[image:image-20240928114139-10.png||height="559" width="810"]]
189		-
190		- image 11 use image widget in SquareLine Studio
191		-
192		-**5.The relationship between widgets**
193		-
194		-There are two common relationships between widgets: one is parallel, the other is parent-child. The parallel relationship means that widgets' relative position is based on a collective object of reference. In parent-child relationship, the parts of the child object that are outside the boundaries of the parent object are not visible by default. Therefore, we need to adjust the position of the child object so that it falls within the range of the parent object, allowing it to be seen as illustrated in image 13.
195		-
196		-[[image:1727486567182-334.png||height="318" width="278"]]
197		-
198		-image 12 move label1 to make label1 widget be a child of button1 widget(1)
199		-
200		-[[image:image-20240928112001-8.png||height="431" width="796"]]
201		-
202		- image 13 move label1 to make label1 widget be a child of button1 widget(2)
203		-
204		-**6.Preview the final effect**
205		-
206		-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.
207		-
208		-[[image:1727487368023-281.png]]
209		-
210		- image 14 click on the triangle icon to start or end the simulation
211		-
212		-For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
213		-
214		-
215	215	== 2.4 Integrate UI Code to ESP-IDF Project ==
216	216
217	217	To achieve the integrating, we first need to export the UI code, then make some modifications, and finally relocate the UI code to a specific position within the project.
...	...	@@ -218,48 +218,43 @@
218	218
219	219	[[image:1727229798126-306.png]]
220	220
221		- image 15 export UI file
	173	+ image 11 export UI file
222	222
223		-[[image:1727229821582-258.png||height="333" width="662"]]
	175	+[[image:1727229821582-258.png]]
224	224
225		- image 16 exported UI file
	177	+ image 12 exported UI file
226	226
227		-Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
	179	+Create a empty directory entitled ‘ui’ in path “basic_prj/app_components/ui/”, and then copy all UI code exported to this directory.
228	228
229		-[[image:1727229845835-509.png||height="165" width="582"]]
	181	+[[image:1727229845835-509.png]]
230	230
231		- image 17 open CMakeLists.txt
	183	+ image 13 open CMakeLists.txt
232	232
233		-[[image:1727229892636-154.png||height="521" width="407"]]
	185	+[[image:1727229892636-154.png]]
234	234
235		- image 18 modify CMakeLists.txt
	187	+ image 14 modify CMakeLists.txt
236	236
237	237	The last step of integrating is adding two lines of code in main.c file.
238	238
239	239	[[image:1727229926561-300.png]]
240	240
241		- image 19 add "ui.h"
	193	+ image 15 add “ui.h”
242	242
243	243	[[image:1727229955611-607.png]]
244	244
245		- image 20 add "ui_init()"
	197	+ image 16 add “ui_init()”
246	246
247		-== 2.5 Brief introduction of hello world project ==
	199	+== 2.5 Test Result ==
248	248
249		-The project consists of two screens. The first screen displays the company's logo, the project name, and a button to navigate to the next screen. The second screen presents some information about this HMI screen product through an image and includes a button to return to the previous screen.
250		-
251		-(% class="wikigeneratedid" %)
252		-== 2.6 Test Result ==
253		-
254	254	By pressing the button lying bottom right, the screen can switch to another as expected. This indicates that the UI file has been successfully integrated into the project and is now effective.
255	255
256		-[[image:1727488067077-684.png||height="402" width="574"]]
	203	+[[image:1727229990795-405.png]]
257	257
258		- image 21 screen1
	205	+ image 17 screen1
259	259
260		-[[image:1727488157579-949.png||height="397" width="572"]]
	207	+[[image:1727230012478-930.png]]
261	261
262		- image 22 screen2
	209	+ image 18 screen2
263	263
264	264	= 3. Example Project 1: LoRa Central Display =
265	265