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Details

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1		-XWiki.xieby
	1	+XWiki.Edwin

Content

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29	29
30	30	== 1.2  Features ==
31	31
32		-* ESP32-WROOM MCU + Dragino LA66 LoRa Module
	32	+* ESP32-WROOM MCU: 8MB RAM & 16MB ROM
	33	+* Dragino LA66 LoRa Module
33	33	* Support Private LoRa protocol or LoRaWAN protocol
34	34	* Support WiFi & BLE wireless protocol
35	35	* 5.0" HMI touch screen
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44	44
45	45	**LoRa**:
46	46
	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
47	47
48	48	**WiFi:**
49	49
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85	85	* Smart Cities
86	86	* Smart Factory
87	87
88		-= 2.  Getting Start with Hello World =
	95	+= 2.  Getting Started with Hello World =
89	89
90	90	== 2.1  About this demo ==
91	91
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.
	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.
93	93
94	94	== 2.2  Install Software Running Environment ==
95	95
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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]]
	111	+[[image:image-20240928110211-5.png||height="508" width="866"]]
105	105
106	106	image 1 ESP-IDF extension install
107	107
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117	117
118	118	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.
119	119
120		-[[image:1727229550717-684.png]]
121	121
122		-[[image:1727233636007-933.png]]
	128	+[[image:image-20240928103357-2.png||height="680" width="708"]]
123	123
124		- image 2 create a SquareLine project
	130	+ 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
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129	129
130	130	image 3 project settings
131	131
132		-[[image:1727229618724-758.png]]
	138	+[[image:image-20240928105309-4.png||height="526" width="556"]]
133	133
134	134	image 4 modify project settings
135	135
136		-Now we can start to use this software. The steps for creating this UI are shown in image 5-10.
	142	+Now we can start to use this software. Here are some usage information for this software.
137	137
138		-[[image:1727229653254-680.png]]
	144	+**1.add widget**
139	139
140		- image 5 create a UI(1)
	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.
141	141
142		-[[image:1727231038705-173.png]]
	148	+[[image:image-20240928111412-6.png||height="526" width="864"]]
143	143
144		- image 6 create a UI(2)
	150	+ image 5 add widgets
145	145
146		-[[image:1727229682537-381.png]]
	152	+**2.modify widget**
147	147
148		- image 7 create a UI(3)
	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".
149	149
150		-We repeat the steps of screen1 in screen2. Then we get screen2 as shown in image 8.
	156	+[[image:1727485118799-984.png]]
151	151
152		-[[image:1727229715361-392.png]]
	158	+ image 6 the button widget's "Inspector" tab
153	153
154		- image 8 create a UI(4)
	160	+Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
155	155
156		-Finally, we add click event for screen change to button1 in screen1(shown in image 9) and button2 in screen2.
	162	+[[image:1727485251053-655.png]]
157	157
158		-[[image:1727229740592-843.png]]
	164	+image 7 the button widget's "BUTTON" tab
159	159
160		- image 9 create a UI(5)
	166	+Third part: It is an area of style setting.
161	161
162		-The event settings of button1 are as image 10 shown. The event adding operation of button2 is similar to button1.
	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.
163	163
164		-[[image:1727229760857-521.png]]
	170	+[[image:1727485480434-713.png||height="395" width="290"]]
165	165
166		- image 10 create a UI(6)
	172	+ image 8 add event for button
167	167
	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	+
168	168	== 2.4 Integrate UI Code to ESP-IDF Project ==
169	169
170	170	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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171	171
172	172	[[image:1727229798126-306.png]]
173	173
174		- image 11 export UI file
	223	+ image 15 export UI file
175	175
176		-[[image:1727229821582-258.png]]
	225	+[[image:1727229821582-258.png||height="333" width="662"]]
177	177
178		- image 12 exported UI file
	227	+ image 16 exported UI file
179	179
180		-Create a empty directory entitled ‘ui’ in path “basic_prj/app_components/ui/”, and then copy all UI code exported to this directory.
	229	+Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
181	181
182		-[[image:1727229845835-509.png]]
	231	+[[image:image-20240928144830-11.png]]
183	183
184		- image 13 open CMakeLists.txt
	233	+ image 17 open CMakeLists.txt
185	185
186		-[[image:1727229892636-154.png]]
	235	+[[image:1727229892636-154.png||height="521" width="407"]]
187	187
188		- image 14 modify CMakeLists.txt
	237	+ image 18 modify CMakeLists.txt
189	189
190	190	The last step of integrating is adding two lines of code in main.c file.
191	191
192	192	[[image:1727229926561-300.png]]
193	193
194		- image 15 add “ui.h”
	243	+ image 19 add "ui.h"
195	195
196	196	[[image:1727229955611-607.png]]
197	197
198		- image 16 add “ui_init()”
	247	+ image 20 add "ui_init()"
199	199
200		-== 2.5 Test Result ==
	249	+== 2.5 Brief introduction of hello world project ==
201	201
	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	+
202	202	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.
203	203
204		-[[image:1727229990795-405.png]]
	257	+[[image:1727488067077-684.png||height="402" width="574"]]
205	205
206		- image 17 screen1
	259	+ image 21 screen1
207	207
208		-[[image:1727230012478-930.png]]
	261	+[[image:1727488157579-949.png||height="397" width="572"]]
209	209
210		- image 18 screen2
	263	+ image 22 screen2
211	211
212	212	= 3. Example Project 1: LoRa Central Display =
213	213

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