Wiki source code of LTS5 LoRa HMI Touch Screen

Version 52.1 by BoYang Xie on 2024/09/28 12:15

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	6	(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)Table of Contents：
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	8	{{toc/}}
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	17	= 1. Introduction =
	18
4.1	19	== 1.1 What is LTS5 LoRa HMI touch screen ==
2.1	20
4.1	21	LTS5 is a (% style="color:blue" %)LoRa / LoRaWAN HMI Touch Screen(%%) designed for display purpose of IoT project. It have a 5.0" HMI touch screen, and support WiFi, Bluetooch, LoRa wireless protocol.
2.1	22
4.1	23	LTS5 is an Open Source software project. The MCU is ESP32 and Dragino LA66 LoRa module. There are lots of development source for ESP32 which can greatly reduce the development time.
2.1	24
4.2	25	The HMI touch screen of LTS5 supports drap & drop design. Developer can use SquareLine to easily customize the display UI for different application.
2.1	26
4.2	27	LTS5 use LA66 LoRa module, this module can be program to support private LoRa protocol or LoRaWAN protocol.
2.1	28
4.2	29
2.1	30	== 1.2 Features ==
	31
4.8	32	* ESP32-WROOM MCU + Dragino LA66 LoRa Module
4.2	33	* Support Private LoRa protocol or LoRaWAN protocol
	34	* Support WiFi & BLE wireless protocol
	35	* 5.0" HMI touch screen
4.6	36	* Support LVGL case. SquareLine program.
4.2	37	* Support RS485 Interface
	38	* Open Source Project
2.1	39	* Wall Attachable.
4.2	40	* 5V DC power
2.1	41	* IP Rating: IP52
	42
	43	== 1.3 Specification ==
	44
4.9	45	LoRa:
	46
	47
4.7	48	WiFi:
	49
	50	* 802.11b/g/n
	51	* Up to 150 Mbps data rate in 802.11n mode
	52	* Support A-MPDU and A-MSDU aggregation
	53	* zero point four μ S protection interval
	54	* Working channel center frequency range: 2412~~2484 MHz
	55
	56	Bluetooth:
	57
	58	* Bluetooth V4.2 BR/EDR and Bluetooth LE standard
	59	* Class-1, Class-2, and Class-3 transmitters.
	60	* AFH
	61	* CVSD and SBC
	62
4.2	63	Display:
2.1	64
4.9	65	* 5.0 Inch , 800 x 480
	66	* IPS Capacitive Touch SCreen
4.11	67	* RGB color.
	68	* Display Area: 120.7*75.80 mm
2.1	69
	70	== 1.4 Power Consumption ==
	71
4.5	72	* External 5V DC power adapter
2.1	73
	74	== 1.5 Storage & Operation Temperature ==
	75
4.10	76	* Operation Temperature: -20 ~~ 70°C (No Dew)
	77	* Storage Temperature: -30 ~~ 70°C (No Dew)
2.1	78
	79	== 1.6 Applications ==
	80
	81	* Smart Buildings & Home Automation
	82	* Logistics and Supply Chain Management
	83	* Smart Metering
	84	* Smart Agriculture
	85	* Smart Cities
	86	* Smart Factory
	87
51.2	88	= 2. Getting Started with Hello World =
2.1	89
5.1	90	== 2.1 About this demo ==
2.1	91
51.2	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.
2.1	93
5.1	94	== 2.2 Install Software Running Environment ==
2.1	95
26.2	96	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.
2.1	97
26.2	98	=== 2.2.1 Install VSCode and ESP-IDF extension ===
	99
	100	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]].
	101
	102	Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
	103
	104
51.2	105	[[image:image-20240928110211-5.png\|\|height="508" width="866"]]
	106
26.2	107	image 1 ESP-IDF extension install
	108
	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]]
	110
5.1	111	=== 2.2.2 Install SquareLine Studio ===
2.1	112
26.2	113	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]].
2.1	114
26.2	115	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.
2.1	116
26.2	117	== 2.3 Simple usage of SquareLine Studio and export UI code ==
2.1	118
26.2	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.
2.1	120
	121
51.2	122	[[image:image-20240928103357-2.png\|\|height="680" width="708"]]
28.2	123
51.2	124	image 2 create a SquareLine project
26.2	125
	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
	128	[[image:1727229582471-566.png]]
	129
	130	image 3 project settings
	131
	132
51.2	133	[[image:image-20240928105309-4.png\|\|height="526" width="556"]]
	134
26.2	135	image 4 modify project settings
	136
51.2	137	Now we can start to use this software. Here are some usage information for this software.
26.2	138
51.2	139	1.add widget
26.2	140
51.2	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.
26.2	142
51.2	143	[[image:image-20240928111412-6.png\|\|height="526" width="864"]]
26.2	144
	145
51.2	146	image 5 add widgets
26.2	147
51.2	148	2.modify widget
26.2	149
51.2	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".
26.2	151
51.2	152	[[image:1727485118799-984.png]]
26.2	153
51.2	154	image 6 the button widget's "Inspector" tab
26.2	155
51.2	156	Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
26.2	157
51.2	158	[[image:1727485251053-655.png]]
26.2	159
51.2	160	image 7 the button widget's "BUTTON" tab
26.2	161
51.2	162	Third part: It is an area of style setting.
26.2	163
51.2	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.
26.2	165
51.2	166	[[image:1727485480434-713.png\|\|height="395" width="290"]]
26.2	167
51.2	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"]]
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	190	image 11 use image widget in SquareLine Studio
	191
	192	5.The relationship between widgets
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	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)
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	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
26.2	215	== 2.4 Integrate UI Code to ESP-IDF Project ==
	216
	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
	219	[[image:1727229798126-306.png]]
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51.2	221	image 15 export UI file
26.2	222
51.2	223	[[image:1727229821582-258.png\|\|height="333" width="662"]]
26.2	224
51.2	225	image 16 exported UI file
26.2	226
51.2	227	Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
26.2	228
51.2	229	[[image:1727229845835-509.png\|\|height="165" width="582"]]
26.2	230
51.2	231	image 17 open CMakeLists.txt
26.2	232
51.2	233	[[image:1727229892636-154.png\|\|height="521" width="407"]]
26.2	234
51.2	235	image 18 modify CMakeLists.txt
26.2	236
	237	The last step of integrating is adding two lines of code in main.c file.
	238
	239	[[image:1727229926561-300.png]]
	240
51.2	241	image 19 add "ui.h"
26.2	242
	243	[[image:1727229955611-607.png]]
	244
51.2	245	image 20 add "ui_init()"
26.2	246
51.2	247	== 2.5 Brief introduction of hello world project ==
2.1	248
51.2	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
26.2	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.
2.1	255
51.2	256	[[image:1727488067077-684.png\|\|height="402" width="574"]]
26.2	257
51.2	258	image 21 screen1
26.2	259
51.2	260	[[image:1727488157579-949.png\|\|height="397" width="572"]]
26.2	261
51.2	262	image 22 screen2
26.2	263
5.1	264	= 3. Example Project 1: LoRa Central Display =
2.1	265
7.1	266	[[image:image-20240916101737-1.png\|\|height="468" width="683"]]
2.1	267
7.1	268
	269
8.1	270	= 4. Example Project 2: LoRaWAN RS485 Alarm =
2.1	271
	272
	273	= 6. FAQ =
	274
7.1	275	== 6.1 ==
2.1	276
	277
	278	= 7. Order Info =
	279
4.4	280	== 7.1 Part Number ==
2.1	281
4.4	282	Part Number: (% style="color:#4472c4" %)LTS5
2.1	283
	284
4.4	285	== 7.2 Packing Info ==
2.1	286
4.4	287	Package Includes:
2.1	288
4.4	289	* LTS5 HMI Touch Screen
	290	* 5V,2A DC Power Adapter.
	291	* USB Type C Program Cable
2.1	292
	293	= 8. Support =
	294
	295	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	296	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
	297
	298	= 9. Reference material =
	299
4.2	300	* Datasheet
	301	* Source Code
4.3	302	* Mechinical
2.1	303
	304	= 10. FCC Warning =
	305
	306
	307	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
	308
	309	(1) This device may not cause harmful interference;
	310
	311	(2) this device must accept any interference received,including interference that may cause undesired operation.
	312

Wiki source code of LTS5 LoRa HMI Touch Screen

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