<
From version < 109.1 >
edited by Mengting Qiu
on 2024/04/02 16:59
To version < 108.2 >
edited by Xiaoling
on 2022/10/15 09:58
>
Change comment: There is no comment for this version

Summary

Details

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Title
... ... @@ -1,1 +1,1 @@
1 -NDDS75 -- NB-IoT Distance Detect Sensor User Manual
1 +NDDS75 NB-IoT Distance Detect Sensor User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.ting
1 +XWiki.Xiaoling
Content
... ... @@ -1,5 +3,3 @@
1 -
2 -
3 3  (% style="text-align:center" %)
4 4  [[image:image-20220709085040-1.png||height="542" width="524"]]
5 5  
... ... @@ -18,6 +18,7 @@
18 18  
19 19  = 1.  Introduction =
20 20  
19 +
21 21  == 1.1 ​ What is NDDS75 Distance Detection Sensor ==
22 22  
23 23  (((
... ... @@ -55,6 +55,7 @@
55 55  [[image:1657327959271-447.png]]
56 56  
57 57  
57 +
58 58  == 1.2 ​ Features ==
59 59  
60 60  
... ... @@ -81,12 +81,12 @@
81 81  
82 82  (% style="color:#037691" %)**NB-IoT Spec:**
83 83  
84 -* B1 @H-FDD: 2100MHz
85 -* B3 @H-FDD: 1800MHz
86 -* B8 @H-FDD: 900MHz
87 -* B5 @H-FDD: 850MHz
88 -* B20 @H-FDD: 800MHz
89 -* B28 @H-FDD: 700MHz
84 +* - B1 @H-FDD: 2100MHz
85 +* - B3 @H-FDD: 1800MHz
86 +* - B8 @H-FDD: 900MHz
87 +* - B5 @H-FDD: 850MHz
88 +* - B20 @H-FDD: 800MHz
89 +* - B28 @H-FDD: 700MHz
90 90  
91 91  (% style="color:#037691" %)**Battery:**
92 92  
... ... @@ -115,6 +115,8 @@
115 115  ​
116 116  
117 117  
118 +
119 +
118 118  == 1.5  Pin Definitions ==
119 119  
120 120  
... ... @@ -121,8 +121,10 @@
121 121  [[image:1657328609906-564.png]]
122 122  
123 123  
126 +
124 124  = 2.  Use NDDS75 to communicate with IoT Server =
125 125  
129 +
126 126  == 2.1  How it works ==
127 127  
128 128  
... ... @@ -145,8 +145,10 @@
145 145  
146 146  )))
147 147  
152 +
148 148  == 2.2 ​ Configure the NDDS75 ==
149 149  
155 +
150 150  === 2.2.1 Test Requirement ===
151 151  
152 152  
... ... @@ -166,6 +166,7 @@
166 166  [[image:1657328756309-230.png]]
167 167  
168 168  
175 +
169 169  === 2.2.2 Insert SIM card ===
170 170  
171 171  
... ... @@ -177,9 +177,11 @@
177 177  User need to take out the NB-IoT module and insert the SIM card like below:
178 178  )))
179 179  
187 +
180 180  [[image:1657328884227-504.png]]
181 181  
182 182  
191 +
183 183  === 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
184 184  
185 185  
... ... @@ -221,6 +221,7 @@
221 221  )))
222 222  
223 223  
233 +
224 224  === 2.2.4 Use CoAP protocol to uplink data ===
225 225  
226 226  
... ... @@ -240,6 +240,7 @@
240 240  * (((
241 241  (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
242 242  
253 +
243 243  
244 244  )))
245 245  
... ... @@ -252,18 +252,23 @@
252 252  [[image:1657330452568-615.png]]
253 253  
254 254  
266 +
255 255  (((
256 256  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.
269 +
270 +
257 257  )))
258 258  
259 259  [[image:1657330472797-498.png]]
260 260  
261 261  
276 +
262 262  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
263 263  
264 264  
265 265  * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
266 266  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  to set UDP server address and port
282 +* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
267 267  
268 268  [[image:1657330501006-241.png]]
269 269  
... ... @@ -271,6 +271,7 @@
271 271  [[image:1657330533775-472.png]]
272 272  
273 273  
290 +
274 274  === 2.2.6 Use MQTT protocol to uplink data ===
275 275  
276 276  
... ... @@ -293,6 +293,7 @@
293 293  )))
294 294  
295 295  
313 +
296 296  === 2.2.7 Use TCP protocol to uplink data ===
297 297  
298 298  
... ... @@ -305,6 +305,7 @@
305 305  [[image:image-20220709093918-2.png]]
306 306  
307 307  
326 +
308 308  === 2.2.8 Change Update Interval ===
309 309  
310 310  
... ... @@ -315,6 +315,7 @@
315 315  (((
316 316  
317 317  
337 +
318 318  (% style="color:red" %)**NOTE:**
319 319  
320 320  (% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
... ... @@ -325,21 +325,23 @@
325 325  (% 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).**
326 326  
327 327  
348 +
328 328  == 2.3  Uplink Payload ==
329 329  
351 +
330 330  === 2.3.1  Before Firmware v1.3.2 ===
331 331  
332 332  
333 333  In this mode, uplink payload includes in total 14 bytes
334 334  
335 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:440px" %)
336 -|=(% style="width: 61px;background-color:#4F81BD;color:white" %)(((
357 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
358 +|=(% style="width: 60px;" %)(((
337 337  **Size(bytes)**
338 -)))|=(% style="width: 61px;background-color:#4F81BD;color:white" %)**6**|=(% style="width: 37px;background-color:#4F81BD;color:white" %)2|=(% style="width: 37px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 82px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 102px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**1**
339 -|(% style="width:97px" %)Value|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
360 +)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
361 +|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
340 340  
341 341  (((
342 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
364 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
343 343  )))
344 344  
345 345  
... ... @@ -346,9 +346,10 @@
346 346  [[image:1657331036973-987.png]]
347 347  
348 348  
371 +
349 349  The payload is **ASCII** string, representative same HEX:
350 350  
351 -(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
374 +(% style="background-color:yellow" %)**0x724031556159 0064 0c6c 19 0292 00 **
352 352  
353 353  **where :**
354 354  
... ... @@ -364,16 +364,19 @@
364 364  
365 365  * (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
366 366  
367 -=== 2.3.2  Since firmware v1.3.2 ===
368 368  
369 369  
392 +
393 +=== **2.3.2  Since firmware v1.3.2** ===
394 +
395 +
370 370  In this mode, uplink payload includes 69 bytes in total by default.
371 371  
372 372  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.
373 373  
374 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:490px" %)
375 -|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**8**|(% style="background-color:#4f81bd; color:white; width:25px" %)**2**|(% style="background-color:#4f81bd; color:white; width:25px" %)**2**|(% style="background-color:#4f81bd; color:white; width:60px" %)**1**|(% style="background-color:#4f81bd; color:white; width:25px" %)**1**|(% style="background-color:#4f81bd; color:white; width:40px" %)**1**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**4**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:65px" %)**4**
376 -|(% 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.......
400 +(% border="2" style="background-color:#ffffcc; color:green; width:896px" %)
401 +|(% 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
402 +|(% 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.......
377 377  
378 378  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
379 379  
... ... @@ -394,7 +394,7 @@
394 394  
395 395  * (% style="color:#037691" %)**Singal:**(%%)  0x1e = 30
396 396  
397 -* (% style="color:#037691" %)**Mod:**(%%)**     **0x01 = 1
423 +* (% style="color:#037691" %)**Mod:**(%%)**  **0x01 = 1
398 398  
399 399  * (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
400 400  
... ... @@ -404,10 +404,14 @@
404 404  
405 405  * (% style="color:#037691" %)**Distance,Time stamp:**(%%) 00396319baf0
406 406  
407 -* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
433 +* (% style="color:#037691" %) **8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
408 408  
435 +
436 +
437 +
409 409  == 2.4  Payload Explanation and Sensor Interface ==
410 410  
440 +
411 411  === 2.4.1  Device ID ===
412 412  
413 413  
... ... @@ -446,6 +446,7 @@
446 446  AT+DEUI=868411056754138
447 447  
448 448  
479 +
449 449  === 2.4.2  Version Info ===
450 450  
451 451  
... ... @@ -458,6 +458,7 @@
458 458  )))
459 459  
460 460  
492 +
461 461  === 2.4.3  Battery Info ===
462 462  
463 463  
... ... @@ -470,6 +470,7 @@
470 470  )))
471 471  
472 472  
505 +
473 473  === 2.4.4  Signal Strength ===
474 474  
475 475  
... ... @@ -502,6 +502,7 @@
502 502  )))
503 503  
504 504  
538 +
505 505  === 2.4.5  Distance ===
506 506  
507 507  
... ... @@ -508,13 +508,23 @@
508 508  Get the distance. Flat object range 280mm - 7500mm.
509 509  
510 510  (((
511 -For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
545 +For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
512 512  )))
513 513  
514 514  (((
549 +(((
550 +(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
551 +)))
552 +)))
553 +
554 +(((
515 515  
516 516  )))
517 517  
558 +(((
559 +
560 +)))
561 +
518 518  === 2.4.6  Digital Interrupt ===
519 519  
520 520  
... ... @@ -535,8 +535,9 @@
535 535  The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
536 536  )))
537 537  
582 +
538 538  (((
539 -**Example:**
584 +Example:
540 540  )))
541 541  
542 542  (((
... ... @@ -548,6 +548,7 @@
548 548  )))
549 549  
550 550  
596 +
551 551  === 2.4.7  ​+5V Output ===
552 552  
553 553  
... ... @@ -555,12 +555,17 @@
555 555  NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
556 556  )))
557 557  
604 +
558 558  (((
559 559  The 5V output time can be controlled by AT Command.
607 +
608 +
560 560  )))
561 561  
562 562  (((
563 563  (% style="color:blue" %)**AT+5VT=1000**
613 +
614 +
564 564  )))
565 565  
566 566  (((
... ... @@ -568,17 +568,15 @@
568 568  )))
569 569  
570 570  
622 +
571 571  == 2.5  Downlink Payload ==
572 572  
573 573  
574 574  By default, NDDS75 prints the downlink payload to console port.
575 575  
576 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
577 -|(% style="background-color:#4f81bd; color:white; width:208px" %)**Downlink Control Type**|(% style="background-color:#4f81bd; color:white; width:56px" %)**FPort**|(% style="background-color:#4f81bd; color:white; width:100px" %)**Type Code**|(% style="background-color:#4f81bd; color:white; width:151px" %)**Downlink payload size(bytes)**
578 -|(% style="width:208px" %)TDC (Transmit Time Interval)|(% style="width:56px" %)Any|(% style="width:100px" %)01|(% style="width:154px" %)4
579 -|(% style="width:208px" %)RESET|(% style="width:56px" %)Any|(% style="width:100px" %)04|(% style="width:154px" %)2
580 -|(% style="width:208px" %)INTMOD|(% style="width:56px" %)Any|(% style="width:100px" %)06|(% style="width:154px" %)4
628 +[[image:image-20220709100028-1.png]]
581 581  
630 +
582 582  (((
583 583  (% style="color:blue" %)**Examples:**
584 584  )))
... ... @@ -623,6 +623,7 @@
623 623  )))
624 624  
625 625  
675 +
626 626  == 2.6  Distance alarm function(Since firmware v1.3.2) ==
627 627  
628 628  
... ... @@ -642,6 +642,7 @@
642 642  **AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
643 643  
644 644  
695 +
645 645  == 2.7  Set the number of data to be uploaded and the recording time ==
646 646  
647 647  
... ... @@ -655,6 +655,7 @@
655 655  [[image:image-20221009001114-1.png||height="687" width="955"]]
656 656  
657 657  
709 +
658 658  == 2.8  Read or Clear cached data ==
659 659  
660 660  
... ... @@ -666,6 +666,7 @@
666 666  [[image:image-20220908175333-2.png]]
667 667  
668 668  
721 +
669 669  == 2.9  ​LED Indicator ==
670 670  
671 671  
... ... @@ -682,6 +682,7 @@
682 682  )))
683 683  
684 684  
738 +
685 685  == 2.10  ​Firmware Change Log ==
686 686  
687 687  
... ... @@ -690,18 +690,100 @@
690 690  )))
691 691  
692 692  (((
747 +
748 +)))
749 +
750 +(((
693 693  Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
694 694  )))
695 695  
696 696  
697 -== 2.11 Battery & Power Consumption ==
698 698  
756 +== 2.11  ​Battery Analysis ==
699 699  
700 -NDDS75 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
701 701  
702 -[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
759 +=== 2.11.1  ​Battery Type ===
703 703  
704 704  
762 +(((
763 +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.
764 +)))
765 +
766 +(((
767 +The battery is designed to last for several years depends on the actually use environment and update interval. 
768 +)))
769 +
770 +(((
771 +The battery related documents as below:
772 +)))
773 +
774 +* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
775 +* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
776 +* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
777 +
778 +(((
779 +[[image:image-20220709101450-2.png]]
780 +)))
781 +
782 +
783 +
784 +=== 2.11.2  Power consumption Analyze ===
785 +
786 +
787 +(((
788 +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.
789 +)))
790 +
791 +
792 +(((
793 +Instruction to use as below:
794 +)))
795 +
796 +(((
797 +(% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
798 +)))
799 +
800 +
801 +(((
802 +(% style="color:blue" %)**Step 2: **(%%) Open it and choose
803 +)))
804 +
805 +* (((
806 +Product Model
807 +)))
808 +* (((
809 +Uplink Interval
810 +)))
811 +* (((
812 +Working Mode
813 +)))
814 +
815 +(((
816 +And the Life expectation in difference case will be shown on the right.
817 +)))
818 +
819 +[[image:image-20220709110451-3.png]]
820 +
821 +
822 +
823 +=== 2.11.3  ​Battery Note ===
824 +
825 +
826 +(((
827 +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.
828 +)))
829 +
830 +
831 +
832 +=== 2.11.4  Replace the battery ===
833 +
834 +
835 +(((
836 +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).
837 +)))
838 +
839 +
840 +
705 705  = 3. ​ Access NB-IoT Module =
706 706  
707 707  
... ... @@ -718,8 +718,10 @@
718 718  [[image:1657333200519-600.png]]
719 719  
720 720  
857 +
721 721  = 4.  Using the AT Commands =
722 722  
860 +
723 723  == 4.1  Access AT Commands ==
724 724  
725 725  
... ... @@ -787,7 +787,11 @@
787 787  AT+URI            :  Resource parameters
788 788  
789 789  
928 +(% style="color:#037691" %)**UDP Management**
790 790  
930 +AT+CFM          :  Upload confirmation mode (only valid for UDP)
931 +
932 +
791 791  (% style="color:#037691" %)**MQTT Management**
792 792  
793 793  AT+CLIENT  :  Get or Set MQTT client
... ... @@ -808,8 +808,10 @@
808 808  AT+PWORD  :  Serial Access Password
809 809  
810 810  
953 +
811 811  = ​5.  FAQ =
812 812  
956 +
813 813  == 5.1 ​ How to Upgrade Firmware ==
814 814  
815 815  
... ... @@ -826,8 +826,10 @@
826 826  )))
827 827  
828 828  
973 +
829 829  = 6.  Trouble Shooting =
830 830  
976 +
831 831  == 6.1  ​Connection problem when uploading firmware ==
832 832  
833 833  
... ... @@ -840,20 +840,17 @@
840 840  
841 841  )))
842 842  
989 +
843 843  == 6.2  AT Command input doesn't work ==
844 844  
845 845  
846 846  (((
847 847  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.
995 +
996 +
848 848  )))
849 849  
850 850  
851 -== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
852 -
853 -
854 -This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**.
855 -
856 -
857 857  = 7. ​ Order Info =
858 858  
859 859  
... ... @@ -860,6 +860,11 @@
860 860  Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
861 861  
862 862  
1006 +(% class="wikigeneratedid" %)
1007 +(((
1008 +
1009 +)))
1010 +
863 863  = 8.  Packing Info =
864 864  
865 865  (((
... ... @@ -874,6 +874,7 @@
874 874  (((
875 875  
876 876  
1025 +
877 877  (% style="color:#037691" %)**Dimension and weight**:
878 878  
879 879  * Device Size: 13.0 x 5 x 4.5 cm
... ... @@ -885,6 +885,7 @@
885 885  (((
886 886  
887 887  
1037 +
888 888  
889 889  )))
890 890  
... ... @@ -892,5 +892,4 @@
892 892  
893 893  
894 894  * 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.
895 -
896 896  * 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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