<
From version < 104.5 >
edited by Xiaoling
on 2022/09/09 12:00
To version < 99.1 >
edited by Xiaoling
on 2022/07/11 14:10
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -16,7 +16,6 @@
16 16  
17 17  = 1.  Introduction =
18 18  
19 -
20 20  == 1.1 ​ What is NDDS75 Distance Detection Sensor ==
21 21  
22 22  (((
... ... @@ -57,7 +57,6 @@
57 57  
58 58  == 1.2 ​ Features ==
59 59  
60 -
61 61  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
62 62  * Ultra low power consumption
63 63  * Distance Detection by Ultrasonic technology
... ... @@ -72,12 +72,8 @@
72 72  * 8500mAh Battery for long term use
73 73  
74 74  
75 -
76 -
77 -
78 78  == 1.3  Specification ==
79 79  
80 -
81 81  (% style="color:#037691" %)**Common DC Characteristics:**
82 82  
83 83  * Supply Voltage: 2.1v ~~ 3.6v
... ... @@ -106,12 +106,8 @@
106 106  * Max transmit power: 350mA@3.3v
107 107  
108 108  
109 -
110 -
111 -
112 112  == ​1.4  Applications ==
113 113  
114 -
115 115  * Smart Buildings & Home Automation
116 116  * Logistics and Supply Chain Management
117 117  * Smart Metering
... ... @@ -123,8 +123,6 @@
123 123  ​
124 124  
125 125  
126 -
127 -
128 128  == 1.5  Pin Definitions ==
129 129  
130 130  
... ... @@ -134,10 +134,8 @@
134 134  
135 135  = 2.  Use NDDS75 to communicate with IoT Server =
136 136  
137 -
138 138  == 2.1  How it works ==
139 139  
140 -
141 141  (((
142 142  The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NDDS75.
143 143  )))
... ... @@ -163,7 +163,6 @@
163 163  
164 164  === 2.2.1 Test Requirement ===
165 165  
166 -
167 167  (((
168 168  To use NDDS75 in your city, make sure meet below requirements:
169 169  )))
... ... @@ -173,7 +173,7 @@
173 173  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
174 174  
175 175  (((
176 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server.
161 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
177 177  )))
178 178  
179 179  
... ... @@ -183,7 +183,6 @@
183 183  
184 184  === 2.2.2 Insert SIM card ===
185 185  
186 -
187 187  (((
188 188  Insert the NB-IoT Card get from your provider.
189 189  )))
... ... @@ -199,7 +199,6 @@
199 199  
200 200  === 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
201 201  
202 -
203 203  (((
204 204  (((
205 205  User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
... ... @@ -208,7 +208,6 @@
208 208  
209 209  [[image:image-20220709092052-2.png]]
210 210  
211 -
212 212  **Connection:**
213 213  
214 214   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
... ... @@ -232,9 +232,8 @@
232 232  
233 233  [[image:1657329814315-101.png]]
234 234  
235 -
236 236  (((
237 -(% style="color:red" %)**Note: the valid AT Commands can be found at: **(%%)**[[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]**
218 +(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
238 238  )))
239 239  
240 240  
... ... @@ -241,10 +241,9 @@
241 241  
242 242  === 2.2.4 Use CoAP protocol to uplink data ===
243 243  
225 +(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one: (%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
244 244  
245 -(% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)**[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]**
246 246  
247 -
248 248  (((
249 249  **Use below commands:**
250 250  )))
... ... @@ -257,25 +257,17 @@
257 257  )))
258 258  * (((
259 259  (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
260 -
261 -
262 -
263 263  )))
264 264  
265 265  (((
266 266  For parameter description, please refer to AT command set
267 -
268 -
269 269  )))
270 270  
271 271  [[image:1657330452568-615.png]]
272 272  
273 273  
274 -
275 275  (((
276 276  After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
277 -
278 -
279 279  )))
280 280  
281 281  [[image:1657330472797-498.png]]
... ... @@ -334,34 +334,25 @@
334 334  
335 335  === 2.2.8 Change Update Interval ===
336 336  
337 -
338 338  User can use below command to change the (% style="color:green" %)**uplink interval**.
339 339  
340 340  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
341 341  
342 342  (((
343 -
344 -
345 -
346 346  (% style="color:red" %)**NOTE:**
315 +)))
347 347  
348 -(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
349 -
350 -(% style="color:red" %)**2. When the firmware version is v1.3.2 and later firmware:**
317 +(((
318 +(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
351 351  )))
352 352  
353 -(% style="color:red" %)**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
354 354  
355 355  
356 -
357 357  == 2.3  Uplink Payload ==
358 358  
359 -
360 -=== 2.3.1  Before Firmware 1.3.2 ===
361 -
362 -
363 363  In this mode, uplink payload includes in total 14 bytes
364 364  
327 +
365 365  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
366 366  |=(% style="width: 60px;" %)(((
367 367  **Size(bytes)**
... ... @@ -375,9 +375,8 @@
375 375  
376 376  [[image:1657331036973-987.png]]
377 377  
378 -
379 379  (((
380 -The payload is **ASCII** string, representative same HEX:
342 +The payload is ASCII string, representative same HEX:
381 381  )))
382 382  
383 383  (((
... ... @@ -388,11 +388,11 @@
388 388  Device ID: 0x724031556159 = 724031556159
389 389  )))
390 390  * (((
391 -Version:  0x0064=100=1.0.0
353 +Version: 0x0064=100=1.0.0
392 392  )))
393 393  
394 394  * (((
395 -BAT:  0x0c6c = 3180 mV = 3.180V
357 +BAT: 0x0c6c = 3180 mV = 3.180V
396 396  )))
397 397  * (((
398 398  Signal: 0x19 = 25
... ... @@ -405,51 +405,14 @@
405 405  
406 406  
407 407  
408 -
409 409  
410 410  )))
411 411  
412 -=== **2.3.2  Since firmware v1.3.2** ===
413 -
414 -
415 -In this mode, uplink payload includes 69 bytes in total by default.
416 -
417 -Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
418 -
419 -(% border="2" style="background-color:#ffffcc; color:green; width:896px" %)
420 -|(% style="width:95px" %)**Size(bytes)**|(% style="width:84px" %)**8**|(% style="width:44px" %)2|(% style="width:48px" %)2|(% style="width:123px" %)1|(% style="width:55px" %)1|(% style="width:80px" %)1|(% style="width:77px" %)2|(% style="width:94px" %)4|(% style="width:77px" %)2|(% style="width:116px" %)4
421 -|(% style="width:95px" %)**Value**|(% style="width:84px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:48px" %)BAT|(% style="width:123px" %)Signal Strength|(% style="width:55px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:77px" %)Distance|(% style="width:94px" %)Timestamp|(% style="width:77px" %)Distance|(% style="width:116px" %)Timestamp.......
422 -
423 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
424 -
425 -[[image:image-20220908175246-1.png]]
426 -
427 -
428 -The payload is ASCII string, representative same HEX:
429 -
430 -0x(% style="color:red" %)f867787050213317(% style="color:blue" %)0084(% style="color:green" %)0cf4(% style="color:red" %)1e(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)**//00396319bb32//**00396319baf0//**00396319ba3c**//00396319b988//**00396319b8d4**//00396319b820//**00396319b76c**//00396319b6b8//**00396319b604**//(%%) where:
431 -
432 -* (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
433 -* (% style="color:red" %)Version: 0x0084=132=1.3.2
434 -* (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
435 -* (% style="color:blue" %)Singal: 0x1e = 30
436 -* (% style="color:red" %)Mod: 0x01 = 1
437 -* Interrupt: 0x00= 0
438 -* Distance: 0x0039= 57 = 57
439 -* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
440 -* Distance,Time stamp : 00396319baf0
441 -* (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
442 -
443 -
444 -
445 -
446 -
447 447  == 2.4  Payload Explanation and Sensor Interface ==
448 448  
449 449  
450 450  === 2.4.1  Device ID ===
451 451  
452 -
453 453  (((
454 454  By default, the Device ID equal to the last 6 bytes of IMEI.
455 455  )))
... ... @@ -456,12 +456,10 @@
456 456  
457 457  (((
458 458  User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
459 -
460 -
461 461  )))
462 462  
463 463  (((
464 -(% style="color:blue" %)**Example :**
387 +**Example:**
465 465  )))
466 466  
467 467  (((
... ... @@ -469,26 +469,13 @@
469 469  )))
470 470  
471 471  (((
472 -The Device ID is stored in a none-erase area, Upgrade the firmware or run (% style="color:blue" %)**AT+FDR**(%%) won't erase Device ID.
395 +The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
473 473  )))
474 474  
475 475  
476 -(% style="color:red" %)**NOTE: When the firmware version is v1.3.2 and later firmware:**
477 477  
478 -(% style="color:red" %)**By default, the Device ID equal to the last 15 bits of IMEI.**
479 -
480 -User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
481 -
482 -
483 -(% style="color:blue" %)**Example :**
484 -
485 -AT+DEUI=868411056754138
486 -
487 -
488 -
489 489  === 2.4.2  Version Info ===
490 490  
491 -
492 492  (((
493 493  Specify the software version: 0x64=100, means firmware version 1.00.
494 494  )))
... ... @@ -501,7 +501,6 @@
501 501  
502 502  === 2.4.3  Battery Info ===
503 503  
504 -
505 505  (((
506 506  Ex1: 0x0B45 = 2885mV
507 507  )))
... ... @@ -514,7 +514,6 @@
514 514  
515 515  === 2.4.4  Signal Strength ===
516 516  
517 -
518 518  (((
519 519  NB-IoT Network signal Strength.
520 520  )))
... ... @@ -547,7 +547,6 @@
547 547  
548 548  === 2.4.5  Distance ===
549 549  
550 -
551 551  Get the distance. Flat object range 280mm - 7500mm.
552 552  
553 553  (((
... ... @@ -570,7 +570,6 @@
570 570  
571 571  === 2.4.6  Digital Interrupt ===
572 572  
573 -
574 574  (((
575 575  Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
576 576  )))
... ... @@ -605,7 +605,6 @@
605 605  
606 606  === 2.4.7  ​+5V Output ===
607 607  
608 -
609 609  (((
610 610  NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
611 611  )))
... ... @@ -613,14 +613,10 @@
613 613  
614 614  (((
615 615  The 5V output time can be controlled by AT Command.
616 -
617 -
618 618  )))
619 619  
620 620  (((
621 621  (% style="color:blue" %)**AT+5VT=1000**
622 -
623 -
624 624  )))
625 625  
626 626  (((
... ... @@ -631,7 +631,6 @@
631 631  
632 632  == 2.5  Downlink Payload ==
633 633  
634 -
635 635  By default, NDDS75 prints the downlink payload to console port.
636 636  
637 637  [[image:image-20220709100028-1.png]]
... ... @@ -682,54 +682,9 @@
682 682  
683 683  
684 684  
685 -== 2.6  Distance alarm function(Since firmware v1.3.2) ==
585 +== 2.6  ​LED Indicator ==
686 686  
687 687  
688 -(% style="color:blue" %)** ➢ AT Command:**
689 -
690 -(% style="color:#037691" %)** AT+ LDDSALARM=min,max**
691 -
692 -² When min=0, and max≠0, Alarm higher than max
693 -
694 -² When min≠0, and max=0, Alarm lower than min
695 -
696 -² When min≠0 and max≠0, Alarm higher than max or lower than min
697 -
698 -
699 -(% style="color:blue" %)** Example:**
700 -
701 -**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
702 -
703 -
704 -
705 -== 2.7  Set the number of data to be uploaded and the recording time ==
706 -
707 -
708 -(% style="color:blue" %)** ➢ AT Command:**
709 -
710 -* (% style="color:#037691" %)** AT+TR=900** (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
711 -* (% style="color:#037691" %)** AT+NOUD=8** (%%) ~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
712 -
713 -
714 -
715 -
716 -== 2.8  Read or Clear cached data ==
717 -
718 -
719 -(% style="color:blue" %)** ➢ AT Command:**
720 -
721 -* (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/ Read cached data
722 -* (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
723 -
724 -
725 -
726 -[[image:image-20220908175333-2.png]]
727 -
728 -
729 -
730 -== 2.9  ​LED Indicator ==
731 -
732 -
733 733  The NDDS75 has an internal LED which is to show the status of different state.
734 734  
735 735  
... ... @@ -744,29 +744,29 @@
744 744  
745 745  
746 746  
747 -== 2.10  ​Firmware Change Log ==
602 +== 2.7  ​Firmware Change Log ==
748 748  
749 749  
750 750  (((
751 -Download URL & Firmware Change log:  [[https:~~/~~/www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0>>https://www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0]]
606 +Download URL & Firmware Change log
752 752  )))
753 753  
754 754  (((
755 -
610 +[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
756 756  )))
757 757  
613 +
758 758  (((
759 -Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
615 +Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
760 760  )))
761 761  
762 762  
763 763  
764 -== 2.11  ​Battery Analysis ==
620 +== 2.8  ​Battery Analysis ==
765 765  
622 +=== 2.8.1  ​Battery Type ===
766 766  
767 -=== 2.11.1  ​Battery Type ===
768 768  
769 -
770 770  (((
771 771  The NDDS75 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
772 772  )))
... ... @@ -789,9 +789,8 @@
789 789  
790 790  
791 791  
792 -=== 2.11.2  Power consumption Analyze ===
647 +=== 2.8.2  Power consumption Analyze ===
793 793  
794 -
795 795  (((
796 796  Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
797 797  )))
... ... @@ -828,9 +828,8 @@
828 828  
829 829  
830 830  
831 -=== 2.11.3  ​Battery Note ===
685 +=== 2.8.3  ​Battery Note ===
832 832  
833 -
834 834  (((
835 835  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
836 836  )))
... ... @@ -837,9 +837,8 @@
837 837  
838 838  
839 839  
840 -=== 2.11.4  Replace the battery ===
693 +=== 2.8.4  Replace the battery ===
841 841  
842 -
843 843  (((
844 844  The default battery pack of NDDS75 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
845 845  )))
... ... @@ -848,7 +848,6 @@
848 848  
849 849  = 3. ​ Access NB-IoT Module =
850 850  
851 -
852 852  (((
853 853  Users can directly access the AT command set of the NB-IoT module.
854 854  )))
... ... @@ -855,8 +855,6 @@
855 855  
856 856  (((
857 857  The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
858 -
859 -
860 860  )))
861 861  
862 862  [[image:1657333200519-600.png]]
... ... @@ -865,13 +865,11 @@
865 865  
866 866  = 4.  Using the AT Commands =
867 867  
868 -
869 869  == 4.1  Access AT Commands ==
870 870  
719 +See this link for detail: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
871 871  
872 -See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]
873 873  
874 -
875 875  AT+<CMD>?  : Help on <CMD>
876 876  
877 877  AT+<CMD>         : Run <CMD>
... ... @@ -911,23 +911,7 @@
911 911  
912 912  AT+SERVADDR  : Server Address
913 913  
914 -AT+TR      : Get or Set record time"
915 915  
916 -AT+APN     : Get or set the APN
917 -
918 -AT+FBAND   : Get or Set whether to automatically modify the frequency band
919 -
920 -AT+DNSCFG  : Get or Set DNS Server
921 -
922 -AT+GETSENSORVALUE   : Returns the current sensor measurement
923 -
924 -AT+NOUD      : Get or Set the number of data to be uploaded
925 -
926 -AT+CDP     : Read or Clear cached data
927 -
928 -AT+LDDSALARM : Get or Set alarm of distance
929 -
930 -
931 931  (% style="color:#037691" %)**COAP Management**      
932 932  
933 933  AT+URI            : Resource parameters
... ... @@ -961,7 +961,6 @@
961 961  
962 962  = ​5.  FAQ =
963 963  
964 -
965 965  == 5.1 ​ How to Upgrade Firmware ==
966 966  
967 967  
... ... @@ -974,7 +974,7 @@
974 974  )))
975 975  
976 976  (((
977 -(% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
807 +(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
978 978  )))
979 979  
980 980  
... ... @@ -981,7 +981,6 @@
981 981  
982 982  = 6.  Trouble Shooting =
983 983  
984 -
985 985  == 6.1  ​Connection problem when uploading firmware ==
986 986  
987 987  
... ... @@ -997,7 +997,6 @@
997 997  
998 998  == 6.2  AT Command input doesn't work ==
999 999  
1000 -
1001 1001  (((
1002 1002  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1003 1003  
... ... @@ -1030,7 +1030,6 @@
1030 1030  (((
1031 1031  
1032 1032  
1033 -
1034 1034  (% style="color:#037691" %)**Dimension and weight**:
1035 1035  
1036 1036  * Device Size: 13.0 x 5 x 4.5 cm
... ... @@ -1048,6 +1048,5 @@
1048 1048  
1049 1049  = 9.  Support =
1050 1050  
1051 -
1052 1052  * 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.
1053 1053  * 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:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
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