Wiki source code of LTS5 LoRa HMI Touch Screen

Version 54.1 by BoYang Xie on 2024/09/28 18:56

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	5	(% _mstvisible="1" %)
	6	(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)Table of Contents：
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	8	{{toc/}}
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	16
	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
51.2	104	[[image:image-20240928110211-5.png\|\|height="508" width="866"]]
	105
26.2	106	image 1 ESP-IDF extension install
	107
	108	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]]
	109
5.1	110	=== 2.2.2 Install SquareLine Studio ===
2.1	111
26.2	112	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	113
26.2	114	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	115
26.2	116	== 2.3 Simple usage of SquareLine Studio and export UI code ==
2.1	117
26.2	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.
2.1	119
	120
51.2	121	[[image:image-20240928103357-2.png\|\|height="680" width="708"]]
28.2	122
51.2	123	image 2 create a SquareLine project
26.2	124
	125	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.
	126
	127	[[image:1727229582471-566.png]]
	128
	129	image 3 project settings
	130
51.2	131	[[image:image-20240928105309-4.png\|\|height="526" width="556"]]
	132
26.2	133	image 4 modify project settings
	134
51.2	135	Now we can start to use this software. Here are some usage information for this software.
26.2	136
51.2	137	1.add widget
26.2	138
51.2	139	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	140
51.2	141	[[image:image-20240928111412-6.png\|\|height="526" width="864"]]
26.2	142
51.2	143	image 5 add widgets
26.2	144
51.2	145	2.modify widget
26.2	146
51.2	147	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	148
51.2	149	[[image:1727485118799-984.png]]
26.2	150
51.2	151	image 6 the button widget's "Inspector" tab
26.2	152
51.2	153	Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
26.2	154
51.2	155	[[image:1727485251053-655.png]]
26.2	156
51.2	157	image 7 the button widget's "BUTTON" tab
26.2	158
51.2	159	Third part: It is an area of style setting.
26.2	160
54.1	161	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.
26.2	162
51.2	163	[[image:1727485480434-713.png\|\|height="395" width="290"]]
26.2	164
51.2	165	image 8 add event for button
	166
	167	3.change label widget content
	168
54.1	169	Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
51.2	170
	171	[[image:image-20240928090825-1.png\|\|height="327" width="391"]]
	172
	173	image 9 modify text content of label widget
	174
	175	4.Add image into project
	176
	177	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.
	178
	179	[[image:image-20240928113424-9.png\|\|height="355" width="505"]]
	180
	181	image 10 add image file into SquareLine Studio project
	182
	183	[[image:image-20240928114139-10.png\|\|height="559" width="810"]]
	184
	185	image 11 use image widget in SquareLine Studio
	186
	187	5.The relationship between widgets
	188
	189	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.
	190
	191	[[image:1727486567182-334.png\|\|height="318" width="278"]]
	192
	193	image 12 move label1 to make label1 widget be a child of button1 widget(1)
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	195	[[image:image-20240928112001-8.png\|\|height="431" width="796"]]
	196
	197	image 13 move label1 to make label1 widget be a child of button1 widget(2)
	198
	199	6.Preview the final effect
	200
	201	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.
	202
	203	[[image:1727487368023-281.png]]
	204
	205	image 14 click on the triangle icon to start or end the simulation
	206
	207	For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~\| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
	208
	209
26.2	210	== 2.4 Integrate UI Code to ESP-IDF Project ==
	211
	212	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.
	213
	214	[[image:1727229798126-306.png]]
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51.2	216	image 15 export UI file
26.2	217
51.2	218	[[image:1727229821582-258.png\|\|height="333" width="662"]]
26.2	219
51.2	220	image 16 exported UI file
26.2	221
51.2	222	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	223
54.1	224	[[image:image-20240928144830-11.png]]
26.2	225
51.2	226	image 17 open CMakeLists.txt
26.2	227
51.2	228	[[image:1727229892636-154.png\|\|height="521" width="407"]]
26.2	229
51.2	230	image 18 modify CMakeLists.txt
26.2	231
	232	The last step of integrating is adding two lines of code in main.c file.
	233
	234	[[image:1727229926561-300.png]]
	235
51.2	236	image 19 add "ui.h"
26.2	237
	238	[[image:1727229955611-607.png]]
	239
51.2	240	image 20 add "ui_init()"
26.2	241
51.2	242	== 2.5 Brief introduction of hello world project ==
2.1	243
51.2	244	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.
	245
	246	== 2.6 Test Result ==
	247
26.2	248	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	249
51.2	250	[[image:1727488067077-684.png\|\|height="402" width="574"]]
26.2	251
51.2	252	image 21 screen1
26.2	253
51.2	254	[[image:1727488157579-949.png\|\|height="397" width="572"]]
26.2	255
51.2	256	image 22 screen2
26.2	257
5.1	258	= 3. Example Project 1: LoRa Central Display =
2.1	259
7.1	260	[[image:image-20240916101737-1.png\|\|height="468" width="683"]]
2.1	261
7.1	262
	263
8.1	264	= 4. Example Project 2: LoRaWAN RS485 Alarm =
2.1	265
	266
	267	= 6. FAQ =
	268
7.1	269	== 6.1 ==
2.1	270
	271
	272	= 7. Order Info =
	273
4.4	274	== 7.1 Part Number ==
2.1	275
4.4	276	Part Number: (% style="color:#4472c4" %)LTS5
2.1	277
	278
4.4	279	== 7.2 Packing Info ==
2.1	280
4.4	281	Package Includes:
2.1	282
4.4	283	* LTS5 HMI Touch Screen
	284	* 5V,2A DC Power Adapter.
	285	* USB Type C Program Cable
2.1	286
	287	= 8. Support =
	288
	289	* 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.
	290	* 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]].
	291
	292	= 9. Reference material =
	293
4.2	294	* Datasheet
	295	* Source Code
4.3	296	* Mechinical
2.1	297
	298	= 10. FCC Warning =
	299
	300
	301	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
	302
	303	(1) This device may not cause harmful interference;
	304
	305	(2) this device must accept any interference received,including interference that may cause undesired operation.
	306

Wiki source code of LTS5 LoRa HMI Touch Screen

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