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1		-XWiki.Edwin
	1	+XWiki.xieby

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29	29
30	30	== 1.2  Features ==
31	31
32		-* ESP32-WROOM MCU: 8MB RAM & 16MB ROM
33		-* Dragino LA66 LoRa Module
	32	+* ESP32-WROOM MCU + Dragino LA66 LoRa Module
34	34	* Support Private LoRa protocol or LoRaWAN protocol
35	35	* Support WiFi & BLE wireless protocol
36	36	* 5.0" HMI touch screen
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45	45
46	46	**LoRa**:
47	47
48		-* Frequency Range: 870 MHz ~~ 960 MHz
49		-* TCXO crystal to ensure RF performance on low temperature
50		-* Maximum Power +22 dBm constant RF output
51		-* High sensitivity: -148 dBm
52		-* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
53		-* LoRa Rx current: <9 mA
54	54
55	55	**WiFi:**
56	56
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92	92	* Smart Cities
93	93	* Smart Factory
94	94
95		-= 2.  Getting Started with Hello World =
	88	+= 2.  Getting Start with Hello World =
96	96
97	97	== 2.1  About this demo ==
98	98
99		-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.
100	100
101	101	== 2.2  Install Software Running Environment ==
102	102
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108	108
109	109	Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
110	110
111		-[[image:image-20240928110211-5.png||height="508" width="866"]]
	104	+[[image:1727229396732-319.png]]
112	112
113	113	image 1 ESP-IDF extension install
114	114
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125	125	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.
126	126
127	127
128		-[[image:image-20240928103357-2.png||height="680" width="708"]]
	121	+[[image:1727233636007-933.png]]
129	129
130		- image 2 create a SquareLine project
	123	+ image 2 create a SquareLine project
131	131
132	132	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.
133	133
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135	135
136	136	image 3 project settings
137	137
138		-[[image:image-20240928105309-4.png||height="526" width="556"]]
	131	+[[image:1727229618724-758.png]]
139	139
140	140	image 4 modify project settings
141	141
142		-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.
143	143
144		-**1.add widget**
	137	+[[image:1727229653254-680.png]]
145	145
146		-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)
147	147
148		-[[image:image-20240928111412-6.png||height="526" width="864"]]
	141	+[[image:1727231038705-173.png]]
149	149
150		- image 5 add widgets
	143	+ image 6 create a UI(2)
151	151
152		-**2.modify widget**
	145	+[[image:1727229682537-381.png]]
153	153
154		-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".
	147	+ image 7 create a UI(3)
155	155
156		-[[image:1727485118799-984.png]]
	149	+We repeat the steps of screen1 in screen2. Then we get screen2 as shown in image 8.
157	157
158		- image 6 the button widget's "Inspector" tab
	151	+[[image:1727229715361-392.png]]
159	159
160		-Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
	153	+ image 8 create a UI(4)
161	161
162		-[[image:1727485251053-655.png]]
	155	+Finally, we add click event for screen change to button1 in screen1(shown in image 9) and button2 in screen2.
163	163
164		-image 7 the button widget's "BUTTON" tab
	157	+[[image:1727229740592-843.png]]
165	165
166		-Third part: It is an area of style setting.
	159	+ image 9 create a UI(5)
167	167
168		-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.
	161	+The event settings of button1 are as image 10 shown. The event adding operation of button2 is similar to button1.
169	169
170		-[[image:1727485480434-713.png||height="395" width="290"]]
	163	+[[image:1727229760857-521.png]]
171	171
172		- image 8 add event for button
	165	+ image 10 create a UI(6)
173	173
174		-**3.change label widget content**
175		-
176		-Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
177		-
178		-[[image:image-20240928090825-1.png||height="327" width="391"]]
179		-
180		- image 9 modify text content of label widget
181		-
182		-**4.Add image into project**
183		-
184		-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.
185		-
186		-[[image:image-20240928113424-9.png||height="355" width="505"]]
187		-
188		- image 10 add image file into SquareLine Studio project
189		-
190		-[[image:image-20240928114139-10.png||height="559" width="810"]]
191		-
192		- image 11 use image widget in SquareLine Studio
193		-
194		-**5.The relationship between widgets**
195		-
196		-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.
197		-
198		-[[image:1727486567182-334.png||height="318" width="278"]]
199		-
200		-image 12 move label1 to make label1 widget be a child of button1 widget(1)
201		-
202		-[[image:image-20240928112001-8.png||height="431" width="796"]]
203		-
204		- image 13 move label1 to make label1 widget be a child of button1 widget(2)
205		-
206		-**6.Preview the final effect**
207		-
208		-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.
209		-
210		-[[image:1727487368023-281.png]]
211		-
212		- image 14 click on the triangle icon to start or end the simulation
213		-
214		-For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
215		-
216		-
217	217	== 2.4 Integrate UI Code to ESP-IDF Project ==
218	218
219	219	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.
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220	220
221	221	[[image:1727229798126-306.png]]
222	222
223		- image 15 export UI file
	173	+ image 11 export UI file
224	224
225		-[[image:1727229821582-258.png||height="333" width="662"]]
	175	+[[image:1727229821582-258.png]]
226	226
227		- image 16 exported UI file
	177	+ image 12 exported UI file
228	228
229		-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.
230	230
231		-[[image:image-20240928144830-11.png]]
	181	+[[image:1727229845835-509.png]]
232	232
233		- image 17 open CMakeLists.txt
	183	+ image 13 open CMakeLists.txt
234	234
235		-[[image:1727229892636-154.png||height="521" width="407"]]
	185	+[[image:1727229892636-154.png]]
236	236
237		- image 18 modify CMakeLists.txt
	187	+ image 14 modify CMakeLists.txt
238	238
239	239	The last step of integrating is adding two lines of code in main.c file.
240	240
241	241	[[image:1727229926561-300.png]]
242	242
243		- image 19 add "ui.h"
	193	+ image 15 add “ui.h”
244	244
245	245	[[image:1727229955611-607.png]]
246	246
247		- image 20 add "ui_init()"
	197	+ image 16 add “ui_init()”
248	248
249		-== 2.5 Brief introduction of hello world project ==
	199	+== 2.5 Test Result ==
250	250
251		-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.
252		-
253		-== 2.6 Test Result ==
254		-
255	255	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.
256	256
257		-[[image:1727488067077-684.png||height="402" width="574"]]
	203	+[[image:1727229990795-405.png]]
258	258
259		- image 21 screen1
	205	+ image 17 screen1
260	260
261		-[[image:1727488157579-949.png||height="397" width="572"]]
	207	+[[image:1727230012478-930.png]]
262	262
263		- image 22 screen2
	209	+ image 18 screen2
264	264
265	265	= 3. Example Project 1: LoRa Central Display =
266	266

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