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Last modified by BoYang Xie on 2025/07/24 16:47
From version 5.1
edited by Edwin Chen
on 2024/09/16 09:57
Change comment: There is no comment for this version
To version 120.1
edited by Dilisi S
on 2024/12/22 15:47
Change comment: Dec 22 edits - part 1

Summary

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Author
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1 -XWiki.Edwin
1 +XWiki.pradeeka
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1 -
1 +(% style="text-align:center" %)
2 2  [[image:image-20240915231842-1.png]]
3 3  
4 4  
5 +
6 +
7 +
8 +
9 +
5 5  (% _mstvisible="1" %)
6 -(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
11 +(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents:**
7 7  
8 8  {{toc/}}
9 9  
... ... @@ -16,20 +16,22 @@
16 16  
17 17  = 1.  Introduction =
18 18  
19 -== 1.1  What is LTS5 LoRa HMI touch screen ==
24 +== 1.1  What is the LTS5 LoRa HMI Touch Screen? ==
20 20  
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.
22 22  
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.
27 +The LTS5 is a (% style="color:blue" %)**LoRa / LoRaWAN HMI Touch Screen**(%%) designed for displaying information in IoT projects. It features a **5.0-inch HMI touch screen** and supports **Wi-Fi**, **Bluetooth**, and **LoRa** wireless protocols.
24 24  
25 -The HMI touch screen of LTS5 supports drap & drop design. Developer can use SquareLine to easily customize the display UI for different application.
29 +The LTS5 is an open-source software project powered by an **ESP32 MCU** and a **Dragino LA66 LoRa** module. The extensive development resources available for ESP32 can significantly reduce development time.
26 26  
27 -LTS5 use LA66 LoRa module, this module can be program to support private LoRa protocol or LoRaWAN protocol.
31 +The LTS5's HMI touch screen supports **drag-and-drop** design, allowing developers to use SquareLine to easily customize the display UI for various applications.
28 28  
33 +The LA66 LoRa module can be programmed to support either private LoRa protocols or the LoRaWAN protocol.
29 29  
30 30  == 1.2  Features ==
31 31  
32 -* ESP32-WROOM MCU + Dragino LA66 LoRa Module
37 +
38 +* ESP32-WROOM MCU: 8MB RAM & 16MB ROM
39 +* 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
... ... @@ -40,11 +40,17 @@
40 40  * 5V DC power
41 41  * IP Rating: IP52
42 42  
50 +== 1.3  Specifications ==
43 43  
44 -== 1.3  Specification ==
45 45  
46 46  **LoRa**:
47 47  
55 +* Frequency Range: 870 MHz ~~ 960 MHz
56 +* TCXO crystal to ensure RF performance on low temperature
57 +* Maximum Power +22 dBm constant RF output
58 +* High sensitivity: -148 dBm
59 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
60 +* LoRa Rx current: <9 mA
48 48  
49 49  **WiFi:**
50 50  
... ... @@ -68,21 +68,20 @@
68 68  * RGB color.
69 69  * Display Area: 120.7*75.80 mm
70 70  
71 -
72 -
73 73  == 1.4  Power Consumption ==
74 74  
86 +
75 75  * External 5V DC power adapter
76 76  
77 -
78 78  == 1.5  Storage & Operation Temperature ==
79 79  
91 +
80 80  * Operation Temperature: -20 ~~ 70°C  (No Dew)
81 81  * Storage Temperature: -30 ~~ 70°C  (No Dew)
82 82  
83 -
84 84  == 1.6  Applications ==
85 85  
97 +
86 86  * Smart Buildings & Home Automation
87 87  * Logistics and Supply Chain Management
88 88  * Smart Metering
... ... @@ -90,39 +90,452 @@
90 90  * Smart Cities
91 91  * Smart Factory
92 92  
105 += 2.  Getting Started with Hello World =
93 93  
94 -= 2.  Getting Start with Hello World =
95 -
96 96  == 2.1  About this demo ==
97 97  
98 -In this Getting Start Example, we will show how to desing 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 99  
110 +This getting started example demonstrates how to design and deploy a simple display UI for the LTS5 device. The example includes:
100 100  
112 +* Creating a basic UI with a single button.
113 +* Implementing functionality to navigate the Web UI to a new page when the button is clicked.
114 +* Uploading the UI to the LTS5 device.
115 +
116 +By completing this demo, you will gain foundational knowledge for customizing the LTS5 interface and building more advanced IoT applications.
117 +
118 +
101 101  == 2.2  Install Software Running Environment ==
102 102  
103 -=== 2.2.1 Install Arduino IDE tool ===
104 104  
122 +The **ESP MCU** supports development with **ESP-IDF**, **Arduino**, or **MicroPython**. We use **ESP-IDF** for compilation and **Visual Studio Code (VS Code)** as the development environment for this project.
123 +
124 +
125 +=== 2.2.1 Install VS Code and ESP-IDF extension ===
126 +
127 +
128 +First, download and install **VS Code** for your operating system from the Visual Studio Code website: [[Visual Studio Code - Mac, Linux, Windows>>https://code.visualstudio.com/download]].
129 +
130 +Next, install the **ESP-IDF** extension within **VS Code**. Detailed steps for this process are shown in Image 1.
131 +
132 +
133 +[[image:image-20240928110211-5.png||height="508" width="866"]]
134 +
135 + Image 1: ESP-IDF extension install
136 +
137 +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]]
138 +
139 +
105 105  === 2.2.2 Install SquareLine Studio ===
106 106  
107 107  
108 -== 2.3 Program in SquareLine and convert it to ESP32 software ==
143 +Download and install the latest version of [[SquareLine Studio>>https://squareline.io/downloads#lastRelease]] on your computer. It supports Windows, Linux, and Mac OS. The software version we are using here is 1.4.2.
109 109  
145 +[[image:squareline.io_downloads.png]]
110 110  
111 -== 2.4 Upload Firmware to ESP32 ==
112 112  
148 +After installation, you can use SquareLine Studio as a trial version for 30 days without activation. Click **CONTINUE WITH TRIAL** to use the trial version, or click **LOG IN** to activate the software with your license key.
113 113  
114 -== 2.5 Test Result ==
150 +[[image:squalreline-trial.png||height="602" width="400"]]
115 115  
152 +The free version restricts usage to 1 component, 150 widgets, and 10 screens.
116 116  
154 +== 2.3 Simple usage of SquareLine Studio and export UI code ==
155 +
156 +
157 +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.
158 +
159 +[[image:image-20240928103357-2.png||height="680" width="708"]]
160 +
161 + image 2 create a SquareLine project
162 +
163 +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.
164 +
165 +[[image:1727229582471-566.png]]
166 +
167 + image 3 project settings
168 +
169 +[[image:image-20240928105309-4.png||height="526" width="556"]]
170 +
171 + image 4 modify project settings
172 +
173 +Now we can start to use this software. Here are some usage information for this software.
174 +
175 +**~1. add widget**
176 +
177 +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.
178 +
179 +[[image:image-20240928111412-6.png||height="526" width="864"]]
180 +
181 + image 5 add widgets
182 +
183 +**2. modify widget**
184 +
185 +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".
186 +
187 +[[image:1727485118799-984.png]]
188 +
189 + image 6 the button widget's "Inspector" tab
190 +
191 +Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
192 +
193 +[[image:1727485251053-655.png]]
194 +
195 +image 7 the button widget's "BUTTON" tab
196 +
197 +Third part: It is an area of style setting.
198 +
199 +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.
200 +
201 +[[image:1727485480434-713.png||height="395" width="290"]]
202 +
203 + image 8 add event for button
204 +
205 +**3. change label widget content**
206 +
207 +Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
208 +
209 +[[image:image-20240928090825-1.png||height="327" width="391"]]
210 +
211 + image 9 modify text content of label widget
212 +
213 +**4. Add image into project**
214 +
215 +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.
216 +
217 +[[image:image-20240928113424-9.png||height="355" width="505"]]
218 +
219 + image 10 add image file into SquareLine Studio project
220 +
221 +[[image:image-20240928114139-10.png||height="559" width="810"]]
222 +
223 + image 11 use image widget in SquareLine Studio
224 +
225 +**5. The relationship between widgets**
226 +
227 +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.
228 +
229 +[[image:1727486567182-334.png||height="318" width="278"]]
230 +
231 +image 12 move label1 to make label1 widget be a child of button1 widget(1)
232 +
233 +[[image:image-20240928112001-8.png||height="431" width="796"]]
234 +
235 + image 13 move label1 to make label1 widget be a child of button1 widget(2)
236 +
237 +**6. Preview the final effect**
238 +
239 +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.
240 +
241 +[[image:1727487368023-281.png]]
242 +
243 + image 14 click on the triangle icon to start or end the simulation
244 +
245 +For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
246 +
247 +
248 +== 2.4 Integrate UI Code to ESP-IDF Project ==
249 +
250 +
251 +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.
252 +
253 +[[image:1727229798126-306.png]]
254 +
255 + image 15 export UI file
256 +
257 +[[image:1727229821582-258.png||height="333" width="662"]]
258 +
259 + image 16 exported UI file
260 +
261 +Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
262 +
263 +[[image:image-20240928144830-11.png]]
264 +
265 + image 17 open CMakeLists.txt
266 +
267 +[[image:1727229892636-154.png||height="521" width="407"]]
268 +
269 + image 18 modify CMakeLists.txt
270 +
271 +The last step of integrating is adding two lines of code in main.c file.
272 +
273 +[[image:1727229926561-300.png]]
274 +
275 + image 19 add "ui.h"
276 +
277 +[[image:1727229955611-607.png]]
278 +
279 + image 20 add "ui_init()"
280 +
281 +
282 +== 2.5 Brief introduction of hello world project ==
283 +
284 +
285 +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.
286 +
287 +
288 +== 2.6 Test Result ==
289 +
290 +
291 +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.
292 +
293 +[[image:1727488067077-684.png||height="402" width="574"]]
294 +
295 + image 21 screen1
296 +
297 +[[image:1727488157579-949.png||height="397" width="572"]]
298 +
299 + image 22 screen2
300 +
301 +
117 117  = 3. Example Project 1: LoRa Central Display =
118 118  
304 +[[image:image-20240916101737-1.png||height="468" width="683"]]
119 119  
120 -= 4. Example Project 2: LoRa to LoRaWAN RS485 Alarm =
121 121  
307 += 4. Example Project 2: LoRaWAN RS485 Alarm =
122 122  
309 += 5.  The way to add a new panel to project =
310 +
311 +**~1. Design a panel in SquareLine Studio, using image 5.1 below as a reference.**
312 +
313 +[[image:image-20241121113445-1.png||height="584" width="934"]]
314 +
315 + image 5.1 a panel about water_leak
316 +
317 +**2. Export the ui file.** You need  to adjust the export path first, then click "Export->Export UI Files". This step had been introduced before. Then you can get the ui files as shown in image 5.2.
318 +
319 +[[image:image-20241121141120-4.png||height="383" width="795"]]
320 +
321 + image 5.2 ui files exported
322 +
323 +**3. Delete or rename some file.** Here are the steps:
324 +
325 + Step1 Delete the 'components' directory.
326 + Step2 Delete 'filelist.txt'.
327 + Step3 Delete 'ui_helpers.c' and 'ui_helpers.h'.
328 + Step4 Rename 'ui_ScreenMain.c' in the 'screens' directory to 'ui_water_leak_style.c'.
329 + Step5 Rename the 'screens' directory to 'styles'.
330 +
331 +[[image:image-20241121151934-10.png||height="303" width="792"]]
332 +
333 + image 5.3 rest file (1)
334 +
335 +[[image:image-20241121142925-7.png||height="141" width="793"]]
336 +
337 + image 5.4 rest file (2)
338 +
339 +**4. Open this project in vscode.**
340 +
341 +5. Add file include path about water_leak in extra_lib/CMakeLists.txt as shown in image 5.5, 5.6, and its format is similar to the tem_hum or door.
342 +
343 +[[image:image-20241121181957-17.png||height="438" width="516"]]
344 +
345 + image 5.5 extra_lib/CMakeLists.txt before add
346 +
347 +[[image:image-20241121182239-18.png||height="520" width="518"]]
348 +
349 + image 5.6 extra_lib/CMakeLists.txt after add
350 +
351 +**6. Modify header file include in fonts and images directory.** Open the fonts/ui_font_Font12.c file, as shown in image 5.7, then modify the '#include "../ui.h"' to '#include "../ui_water_leak.h"', the image 5.8 is the modified image. Other font file need to be modified in same way.
352 +
353 +[[image:image-20241121171629-11.png]]
354 +
355 + image 5.7 before-modified font file
356 +
357 +[[image:image-20241121171901-12.png]]
358 +
359 + image 5.8 modified font file
360 +
361 +Open the images/ui_img_battery_empty_png.c file, as shown in image 5.9, then modify the '#include "../ui.h"' to '#include "../ui_water_leak.h"', the image 5.10 is the modified image. Other image file need to be modified in same way.
362 +
363 +[[image:image-20241121172714-13.png]]
364 +
365 + image 5.9 before-modified image file
366 +
367 +[[image:image-20241121172908-14.png]]
368 +
369 + image 5.10 modified image file
370 +
371 +**7. Modify the ui_water_leak/CMakeLists.txt.** Open this file, and modify it from image 5.11 to image 5.12.
372 +
373 +[[image:image-20241121180030-15.png]]
374 +
375 + image 5.11 ui_water_leak/CMakeLists.txt before modification
376 +
377 +[[image:image-20241121180517-16.png]]
378 +
379 + image 5.12 ui_water_leak/CMakeLists.txt after modification
380 +
381 +**8. Modify ui_water_leak.h file.** The image 5.13, 5.14 show the code before modification, and the image 5.15, 5.16 show the code after modification.
382 +
383 +[[image:image-20241122094200-23.png]]
384 +
385 + image 5.13 ui_water_leak.h (1) before modification
386 +
387 +[[image:image-20241122094320-24.png||height="852" width="554"]]
388 +
389 + image 5.14 ui_water_leak.h (2) before modification
390 +
391 +[[image:image-20241122094600-25.png||height="1078" width="554"]]
392 +
393 + image 5.15 ui_water_leak.h (1) after modification
394 +
395 +[[image:image-20241122094719-26.png||height="941" width="583"]]
396 +
397 + image 5.16 ui_water_leak.h (2) before modification
398 +
399 +**9. Modify ui_water_leak.c file.** The image 5.17, 5.18, 5.19 show the code before modification, and the image 5.20, 5.21, 5.22 show the code after modification.
400 +
401 +_ui_flag_modify( ((lv_obj_t *)(e->user_data)), LV_OBJ_FLAG_HIDDEN, _UI_MODIFY_FLAG_TOGGLE);  This code replaces 4 lines of code in ui_water_leak.c, so it is pasted here for convenience.
402 +
403 +[[image:image-20241122102929-27.png||height="619" width="426"]]
404 +
405 + image 5.17 ui_water_leak.c (1) before modification
406 +
407 +[[image:image-20241122112838-30.png||height="551" width="628"]]
408 +
409 + image 5.18 ui_water_leak.c (2) before modification
410 +
411 +[[image:image-20241122110815-29.png||height="725" width="712"]]
412 +
413 + image 5.19 ui_water_leak.c (3) before modification
414 +
415 +[[image:image-20241122113158-31.png||height="872" width="677"]]
416 +
417 + image 5.20 ui_water_leak.c (1) after modification
418 +
419 +[[image:image-20241122113259-33.png||height="874" width="724"]]
420 +
421 + image 5.21 ui_water_leak.c (2) after modification
422 +
423 +[[image:image-20241122113359-34.png||height="804" width="746"]]
424 +
425 + image 5.22 ui_water_leak.c (3) after modification
426 +
427 +**10. Modify ui_water_leak_events.h file.** The image 5.23 show the code before modification, and the image 5.24 show the code after modification.
428 +
429 +[[image:image-20241122134113-35.png||height="380" width="421"]]
430 +
431 + image 5.23 ui_water_leak_events_.h before modification
432 +
433 +[[image:image-20241122134420-37.png||height="201" width="283"]]
434 +
435 +image 5.24 ui_water_leak_events_.h after modification
436 +
437 +**11. Modify ui_water_leak_events.c file.** The image 5.25 show the code before modification, and the image 5.26 show the code after modification.
438 +
439 +Step1. '#include "ui.h"'~-~->'#include "ui_water_leak.h"'
440 +
441 +Step2. add code  below in delete_object() function definition.
442 +
443 + panel_all * panel = find_upper_by_SensorPanel(&arr,((lv_obj_t *)(e->user_data~)~)~);
444 +
445 + size_t index = panel->panel_obj_index;
446 +
447 + deleteElement(&arr, index);
448 +
449 +[[image:image-20241122135023-38.png||height="358" width="372"]]
450 +
451 + image 5.25 ui_water_leak_events_.c before modification
452 +
453 +[[image:image-20241122135258-39.png||height="403" width="559"]]
454 +
455 + image 5.26 ui_water_leak_events_.c after modification
456 +
457 +**12. Modify ui_water_leak_style.c file.**
458 +
459 +Step1. '#include "../ui.h"'~-~->#include '"../ui_water_leak.h"'
460 +
461 + add '#include "../../sort.h"'
462 +
463 + add '#include "ui.h"'
464 +
465 +[[image:image-20241122141536-41.png||height="361" width="612"]]
466 +
467 + image 5.27 ui_water_leak_style.c (1) before modification
468 +
469 +[[image:image-20241122142129-42.png||height="386" width="613"]]
470 +
471 + image 5.28 ui_water_leak_style.c (1) after modification
472 +
473 +Step2. modify 'void ui_ScreenMain_screen_init(void)'~-~->'panel_with_type create_water_leak(uint8_t index)'
474 +
475 + delete code as shown in image 5.29
476 +
477 +[[image:image-20241122145620-44.png||height="757" width="671"]]
478 +
479 + image 5.29 ui_water_leak_style.c (2)
480 +
481 +Step3. The image 5.30, 5.31 show the change.
482 +
483 +[[image:image-20241122152026-45.png||height="277" width="828"]]
484 +
485 + image 5.30 ui_water_leak_style.c (3) before modification
486 +
487 +[[image:image-20241122152542-46.png||height="293" width="830"]]
488 +
489 + image 5.31 ui_water_leak_style.c (3) after modification
490 +
491 +Step4. Copy partly the code in ui_water_leak.c, paste at extra_lib/sort.h(The process is shown in image 5.32, 5.33).
492 +
493 +[[image:image-20241122153958-47.png]]
494 +
495 + image 5.32 ui_water_leak_style.c (4)
496 +
497 +[[image:image-20241122154755-49.png||height="864" width="513"]]
498 +
499 + image 5.33 ui_water_leak_style.c (4)
500 +
501 +Step5. Delete event function in code which was just pasted in extra_lib/sort.h(The process is shown in image 5.34).
502 +
503 +[[image:image-20241122155650-50.png||height="922" width="513"]]
504 +
505 + image 5.34 ui_water_leak_style.c (5)
506 +
507 +Step6. Add some lines of code in extra_lib/sort.h as shown in image 5.35.
508 +
509 +[[image:image-20241122161934-51.png]]
510 +
511 + image 5.35
512 +
513 +Step7. Add a line of code in extra_lib/sort.h as shown in image 5.36.
514 +
515 +[[image:image-20241122162852-53.png||height="330" width="529"]]
516 +
517 + image 5.37
518 +
519 +Step8. Add some code in ui_water_leak_style.c as shown in image 5.38 from line534 to line 576 in detail.
520 +
521 +panel_with_type union_sensor;
522 +
523 +union_sensor.panel_type = WATER_LEAK_TYPE;
524 +
525 +......
526 +
527 +lv_obj_set_x(union_sensor.panel_union.door.ui_PanelSensorDoor, x_by_index(index));
528 +
529 +lv_obj_set_y(union_sensor.panel_union.door.ui_PanelSensorDoor, y_by_index(index));
530 +
531 +return union_sensor;
532 +
533 +[[image:image-20241122171211-54.png||height="635" width="792"]]
534 +
535 + image 5.38
536 +
537 +**13. Modify sort.c file.**
538 +
539 +Add a line of code ~-~-'#include "ui_water_leak.h"' as shown in image 5.39 line 16.
540 +
541 +[[image:image-20241122173718-56.png||height="378" width="579"]]
542 +
543 + image 5.39 sort.c (1)
544 +
545 +There are still some changes need to be done in sort.c, and omit here for the moment.
546 +
547 +
123 123  = 6. FAQ =
124 124  
125 -== 6.1 ==
550 +== 6.1 ==
126 126  
127 127  
128 128  = 7. Order Info =
... ... @@ -129,12 +129,13 @@
129 129  
130 130  == 7.1  Part Number ==
131 131  
557 +
132 132  Part Number: (% style="color:#4472c4" %)LTS5
133 133  
134 -
135 135  
136 136  == 7.2  Packing Info ==
137 137  
563 +
138 138  **Package Includes**:
139 139  
140 140  * LTS5 HMI Touch Screen
... ... @@ -141,20 +141,19 @@
141 141  * 5V,2A DC Power Adapter.
142 142  * USB Type C Program Cable
143 143  
144 -
145 145  = 8. Support =
146 146  
572 +
147 147  * 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.
148 148  * 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]].
149 149  
150 -
151 151  = 9.  Reference material =
152 152  
578 +
153 153  * Datasheet
154 154  * Source Code
155 155  * Mechinical
156 156  
157 -
158 158  = 10. FCC Warning =
159 159  
160 160  
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