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Last modified by Xiaoling on 2025/04/27 16:48
From version 55.1
edited by Edwin Chen
on 2022/10/06 18:45
Change comment: There is no comment for this version
To version 70.1
edited by Edwin Chen
on 2022/10/09 23:47
Change comment: Uploaded new attachment "image-20221009234703-2.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -1,5 +3,3 @@
1 -== ==
2 -
3 3  (% style="text-align:center" %)
4 4  [[image:1664505654417-133.png]]
5 5  
... ... @@ -99,6 +99,8 @@
99 99  * LoRa Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm
100 100  * Tracking: max: 38mA
101 101  
100 +
101 +
102 102  == 1.3  Features ==
103 103  
104 104  
... ... @@ -117,6 +117,8 @@
117 117  * Tri-color LED, Alarm button
118 118  * Datalog
119 119  
120 +
121 +
120 120  == 1.4  Applications ==
121 121  
122 122  
... ... @@ -123,6 +123,8 @@
123 123  * Logistics and Supply Chain Management
124 124  * Human tracking
125 125  
128 +
129 +
126 126  = 2.1 Use TrackerD =
127 127  
128 128  
... ... @@ -185,8 +185,10 @@
185 185  (% style="color:blue" %)**Step 3:**(%%) TrackerD will auto join to the LoRaWAN network. After join success, TrackerD will start to upload message to IoT server.
186 186  
187 187  
188 -== 2.3 Positioning Mode(SMOD) ==
189 189  
193 +== 2.3  Positioning Mode(SMOD) ==
194 +
195 +
190 190  Users can set TrackerD to different Positioning Mode for different applications. Below mod are supported.
191 191  
192 192  * (% style="color:#037691" %)**GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
... ... @@ -196,18 +196,23 @@
196 196  Users can switch modes by [[changing SMOD>>||anchor="H3.2.7SetPositioningMode"]].
197 197  
198 198  
199 -== 2.3 Uplink Payload ==
200 200  
206 +== 2.4  Uplink Payload ==
201 201  
202 -=== 2.3.1 Uplink FPORT~=5, Device Status ===
203 203  
204 -Uplink the device configures with FPORT=5. Once LHT52 Joined the network, it will uplink this message to the server. After first uplink, LHT52 will uplink Device Status every 12 hours.
209 +=== 2.4.1 Uplink FPORT~=5, Device Status ===
205 205  
206 -|=**Size (bytes)**|=**1**|=**2**|=**1**|=**1**|=**2**
207 -|**Value**|Sensor Model|Firmware Version|Frequency Band|Sub-band|BAT
208 208  
209 -[[image:image-20221006181357-2.png]]
212 +Uplink the device configures with FPORT=5. Once LGT92 Joined the network, it will uplink this message to the server. After first uplink, LHT52 will uplink Device Status every 12 hours.
210 210  
214 +
215 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
216 +|=(% scope="row" style="width: 108px;" %)**Size(bytes)**|=(% style="width: 82px;" %)**1**|=(% style="width: 83px;" %)**2**|=(% style="width: 94px;" %)**1**|=(% style="width: 84px;" %)**1**|=(% style="width: 44px;" %)2|=(% style="width: 63px;" %)**2**|=(% style="width: 60px;" %)1
217 +|=(% style="width: 108px;" %)**Value**|(% style="width:82px" %)Sensor Model|(% style="width:83px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:84px" %)Sub-band|(% style="width:44px" %)BAT|(% style="width:63px" %)SMOD|(% style="width:60px" %)Status
218 +
219 +[[image:1665301570342-765.png]]
220 +
221 +
211 211  Example Payload (FPort=5):  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT52%20-%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220621105116-11.png?rev=1.1||alt="image-20220621105116-11.png"]]
212 212  
213 213  **Sensor Model**: For TrackerD, this value is 0x13.
... ... @@ -245,25 +245,26 @@
245 245  Use can also get the Device Status uplink through the downlink command:
246 246  
247 247  
248 -=== 2.3.2 Uplink FPORT~=2, Realtime GNSS Positioning ===
249 249  
260 +=== 2.4.2 Uplink FPORT~=2, Realtime GNSS Positioning + Temperature & Humidity ===
250 250  
251 -The default uplink payload includes totally 11 bytes. (User can use AT+SMOD=1,0 to enable uploading on-board Temperature and humidity value, and total payload will be 15 bytes, please note 15 bytes won't work on DR0 on US915/AU915 frequency band. )
252 252  
263 +User can use **AT+SMOD=1,0** to enable uploading on-board Temperature and humidity values, and the total payload will be 15 bytes, please note that 15 bytes won't work on DR0 on US915/AU915 frequency band.
253 253  
265 +
254 254  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
255 255  |=(% scope="row" style="width: 50px;" %)(((
256 256  **Size(bytes)**
257 -)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:50px" %)1|(% style="width:88px" %)(((
258 -2(optional)
269 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1|(% style="width:40px" %)(((
270 +2
259 259  )))|(% style="width:87px" %)(((
260 -2(optional)
272 +2
261 261  )))
262 262  |=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
263 263  [[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
264 -)))|(% style="width:52px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:88px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
276 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]|(% style="width:40px" %)[[Hum>>||anchor="HHum:"]]|(% style="width:87px" %)[[Tem>>||anchor="HTem:"]]
265 265  
266 -[[image:1664501958445-288.png]]
278 +[[image:1665301636888-168.png]]
267 267  
268 268  
269 269  ==== (% style="color:blue" %)**Alarm & BAT:**(%%) ====
... ... @@ -272,11 +272,17 @@
272 272  |=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)1 bit|(% style="width:80px" %)1bit|(% style="width:50px" %)14bits
273 273  |=(% style="width: 72px;" %)**Value**|(% style="width:67px" %)reserve|(% style="width:118px" %)Alarm Indicate|(% style="width:63px" %)[[BAT>>||anchor="HBAT:"]] 
274 274  
287 +(% class="wikigeneratedid" %)
288 +==== ====
289 +
290 +(% class="wikigeneratedid" %)
291 +==== ====
292 +
275 275  ==== (% style="color:blue" %)**FLAG:**(%%) ====
276 276  
277 277  (% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:250px" %)
278 -|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit|(% style="width:100px" %)5 bits
279 -|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]|(% style="width:140px" %)Firmware version 
296 +|=(% scope="row" style="width: 50px;" %)**Size(bit)**|(% style="width:50px" %)2bits|(% style="width:50px" %)1bit
297 +|=(% style="width: 79px;" %)**Value**|(% style="width:55px" %)[[MOD>>||anchor="H3.2.7SetPositioningMode"]]|(% style="width:47px" %)[[LON>>||anchor="HLON:"]]
280 280  
281 281  **Example:** Payload: 0x02863D68 FAC29BAF 4B45 60 0202 011A 
282 282  
... ... @@ -286,19 +286,20 @@
286 286  * Latitude: 02863D68  ⇒  //if (0x//02863D68//& 0x80000000 = 0 )~://  //value = 02863D68 /1000000 = 42.351976//
287 287  * Longitude: FAC29BAF  ⇒ //if (0x//FAC29BAF// & 0x80000000 = 1 )~://  //value = (0x//FAC29BAF// – 0x 100000000)/1000000 =//-87.9094//57//
288 288  
307 +
308 +
289 289  (% style="color:red" %)**Important note:**
290 290  
291 291  1.  When power is low (<2.84v), GPS won't be able to get location info and GPS feature will be disabled and the location field will be filled with 0x0FFFFFFF, 0x0FFFFFFF.
292 292  
293 -2.  When enable 9-axis motion sensor, the total payload will be 15 bytes, while US915/AU915 DR0 accepts only 11 bytes payload. In this case, the payload on server will be ignore and shows as below:
313 +2.  In this mode, the total payload will be 15 bytes, while US915/AU915 DR0 accepts only 11 bytes payload. In this case, the payload on server will be ignore and shows as below:
294 294  
295 295  
296 296  [[image:1664502116362-706.png]]
297 297  
298 298  
319 +3.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
299 299  
300 -4.  While GPS can't get location info after timeout(FTIME Parameter), the latitude and longitude will be filled with all 0x00:
301 -
302 302  [[image:1664502166010-515.png]]
303 303  
304 304  
... ... @@ -308,12 +308,13 @@
308 308  Example:  0x4B & 0x40 >> 6 = 0x01
309 309  
310 310  
330 +
311 311  ==== (% style="color:blue" %)**BAT:**(%%) ====
312 312  
313 313  Example:  0x0CDD & 0x3FFF ⇒ 3293 (mV).
314 314  
315 315  (((
316 -The battery info shows the current voltage, for (% style="color:blue" %)**TrackerD**(%%) version which powered by li-on battery. User can use below mapping to indicate the battery in percentage: \
336 +The battery info shows the battery voltage, User can use the below mapping to indicate the battery in percentage: \
317 317  )))
318 318  
319 319  * > 4.0v :  80% ~~ 100%
... ... @@ -323,6 +323,7 @@
323 323  * < 3.39v:  0~~20%
324 324  
325 325  
346 +
326 326  ==== (% style="color:blue" %)**LON:**(%%) ====
327 327  
328 328  Enable/Disable LED activity for uplink
... ... @@ -347,15 +347,51 @@
347 347  
348 348  
349 349  
350 -=== 2.3.3 Uplink FPORT~= , History GNSS Positioning ===
371 +=== 2.4.3  Uplink FPORT~=3, Realtime GNSS Positioning (Default Mode) ===
351 351  
352 352  
374 +The default uplink payload includes totally 11 bytes. The payload is the first 11 bytes of Uplink FPORT=2, real-time GNSS positioning, (remove the temp and humidity)
353 353  
354 -=== 2.3.4 BLE positioning Payload(Fport2) ===
355 355  
377 +(% border="1.2" cellspacing="3" style="background-color:#ffffcc; color:green; width:480px" %)
378 +|=(% scope="row" style="width: 50px;" %)(((
379 +**Size(bytes)**
380 +)))|(% style="width:60px" %)4|(% style="width:70px" %)4|(% style="width:80px" %)2|(% style="width:73px" %)1
381 +|=(% style="width: 69px;" %)**Value**|(% style="width:76px" %)[[Latitude>>||anchor="HLocationinfo:"]]|(% style="width:87px" %)[[Longitude>>||anchor="HLocationinfo:"]]|(% style="width:76px" %)(((
382 +[[Alarm & BAT>>||anchor="HAlarm26BAT:"]]
383 +)))|(% style="width:73px" %)[[FLAG>>||anchor="HFLAG:"]]
356 356  
357 -Different MODE has different payload:  (% style="color:blue" %)**MODE=2**
385 +(% class="wikigeneratedid" %)
386 +[[image:1665301687277-443.png]]
358 358  
388 +
389 +
390 +=== 2.4.4  Uplink FPORT~=4, History GNSS Positioning ===
391 +
392 +
393 +Set [[PNACKMD=1>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.13AutoSendNone-ACKmessages]], and TrackerD will wait for ACK for every uplink, when there is no LoRaWAN network, TrackerD will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
394 +
395 +
396 +(% style="color:red" %)**Note for this mode:**
397 +
398 +* a) TrackerD will do an ACK check for data records sending to make sure every data arrive server.
399 +* b) TrackerD will send data in (% style="color:blue" %)**CONFIRMED Mode**(%%) when PNACKMD=1, but TrackerD won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink, if TrackerD gets an ACK, TrackerD will consider there is a network connection and resend all NONE-ACK Messages.
400 +
401 +The payload is 15 bytes, as below.
402 +
403 +(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
404 +|=(% scope="row" %)(((
405 +**Size(bytes)**
406 +)))|4|4|2|1|1|1|1|1
407 +|=**Value**|Latitude|Longitude|Year|Month|Day|Hous|Min|Sen
408 +
409 +[[image:image-20221009160309-2.png]]
410 +
411 +
412 +
413 +=== 2.4.5  Uplink FPORT~=6, BLE Positioning with Strongest iBeacon ===
414 +
415 +
359 359  (% border="1.5" cellspacing="3" style="background-color:#ffffcc; color:green; width:450px" %)
360 360  |=(% scope="row" style="width: 60px;" %)(((
361 361  **Size(bytes)**
... ... @@ -383,9 +383,12 @@
383 383  * (% style="color:#037691" %)**Measured Power: ** (%%) The Measured Power from the strongest iBeacon.
384 384  * (% style="color:#037691" %)**RSSI:  ** (%%) The RSSI from the strongest iBeacon.
385 385  
386 -=== 2.3.5 Add Payload format in TTN V3 ===
387 387  
388 388  
445 +
446 +=== 2.4.6  Add Payload format in TTN V3 ===
447 +
448 +
389 389  In TTN V3, use can add a custom payload so it shows friendly.
390 390  
391 391  In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**
... ... @@ -403,7 +403,7 @@
403 403  
404 404  
405 405  
406 -== 2.4 Integrate with Datacake ==
466 +== 2.5 Integrate with Datacake ==
407 407  
408 408  
409 409  (((
... ... @@ -419,7 +419,7 @@
419 419  
420 420  
421 421  
422 -== 2.5 Integrate with Tago ==
482 +== 2.6 Integrate with Tago ==
423 423  
424 424  
425 425  (((
... ... @@ -435,9 +435,16 @@
435 435  
436 436  
437 437  
438 -== 2.6 Alarm Mode ==
498 +== 2.7  Datalog Feature ==
439 439  
440 440  
501 +total 273 entries,by default disable
502 +
503 +
504 +
505 +== 2.8 Alarm Mode ==
506 +
507 +
441 441  (((
442 442  User can push the (% style="color:red" %)**RED button**(%%) by more than 5 seconds to enter Alarm Mode.
443 443  )))
... ... @@ -461,15 +461,16 @@
461 461  
462 462  
463 463  
464 -== 2.7 Sports Mode ==
531 +== 2.9 Transport Mode ==
465 465  
466 466  
467 -In Sports Mode, TrackerD will check if there is motion. If there is no motion, device will send uplinks every 20 minutes. If there is motion, device will send uplink every 5 minutes.
534 +In Transport Mode, TrackerD will check if there is motion. If there is no motion, device will send uplinks every 20 minutes. If there is motion, device will send uplink every 5 minutes.
468 468  
469 469  
470 -== 2.8 LED Status ==
471 471  
538 +== 2.10 LED Status ==
472 472  
540 +
473 473  (% border="1.5" style="background-color:#ffffcc; color:green; width:500px" %)
474 474  |=(% style="width: 150px;" %)**Event**|=(% style="width: 200px;" %)**Action**|=(% style="width: 150px;" %)**AT+LON to control on/off**
475 475  |(% style="width:157px" %)**Power On**|(% style="width:271px" %)(% style="color:blue" %)**BLUE, **(% style="color:red" %)**RED , **(% style="color:green" %)**Green** flash once|(% style="width:202px" %)N/A
... ... @@ -484,9 +484,12 @@
484 484  |(% style="width:157px" %)**Get Downlink**|(% style="width:271px" %)(% style="color:green" %)**GREEN**(%%) led on 1 second|(% style="width:202px" %)Yes
485 485  |(% style="width:157px" %)**Movement Detect**|(% style="width:271px" %)(% style="color:red" %)**RED **(%%)led on 500ms|(% style="width:202px" %)N/A
486 486  
487 -== 2.9 Button Function ==
488 488  
489 489  
557 +
558 +== 2.11 Button Function ==
559 +
560 +
490 490  (% style="color:blue" %)**RESET button:**
491 491  
492 492  [[image:1664502835802-546.png]]
... ... @@ -505,9 +505,12 @@
505 505  |(% style="width:135px" %)Exit Alarm Mode|(% style="width:220px" %)Fast press the (% style="color:red" %)**RED** (%%)button 10 times|(% style="width:265px" %)Exit Alarm Mode
506 506  |(% style="width:135px" %)Enter Deep Sleep Mode|(% style="width:220px" %)Press and hold the button for 10 seconds, then quickly press the device 3 times to enter deep sleep|(% style="width:265px" %)This is the mode ship out from factory. CPU will be complete in sleep mode and no LoRa activity, only use before deploy.
507 507  
508 -== 2.10 USB Port Function ==
509 509  
510 510  
581 +
582 +== 2.12 USB Port Function ==
583 +
584 +
511 511  The USB interface of TrackerD has below functions:
512 512  
513 513  * Power on the device
... ... @@ -515,6 +515,9 @@
515 515  * [[Configure Device>>||anchor="H3.ConfigureTrackerDviaATcommandorLoRaWANdownlink"]]
516 516  * [[Upgrade Firmware>>||anchor="H5.UploadFirmware"]]
517 517  
592 +
593 +
594 +
518 518  = 3. Configure TrackerD via AT command or LoRaWAN downlink =
519 519  
520 520  
... ... @@ -587,16 +587,16 @@
587 587  
588 588  
589 589  
590 -=== 3.2.3 Set Sports Mode Packet transmission interval ===
667 +=== 3.2.3 Set Transport Mode Packet transmission interval ===
591 591  
592 592  
593 -Set sports packet transmit interval
670 +Set Transport Mode packet transmit interval
594 594  
595 595  * (% style="color:blue" %)**AT Command:**
596 596  
597 597  (% style="color:#037691" %)**AT+MTDC=xx. **
598 598  
599 -Example:  AT+MTDC=300000  **~-~->    ** Set Sports Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Sports mode, Default Value: 300000
676 +Example:  AT+MTDC=300000  **~-~->    ** Set Transport Mode Packet Interval to 300 seconds. TrackerD will send every 300 seconds in Transport mode, Default Value: 300000
600 600  
601 601  
602 602  * (% style="color:blue" %)**Downlink Payload (prefix 0x03):**
... ... @@ -636,16 +636,16 @@
636 636  
637 637  
638 638  
639 -=== 3.2.6 Disable/Enable movement detect (Debug Only) ===
716 +=== 3.2.6 Disable/Enable Transport Mode ===
640 640  
641 641  
642 -User can use this feature to check and set thread hole of movement detect
719 +Users can use this feature to enable/disable Transport Mode.
643 643  
644 644  * (% style="color:blue" %)**AT Command:**
645 645  
646 646  (% style="color:#037691" %)**AT+INTWK=xx.  (Disable (0), Enable (1), default:0)**
647 647  
648 -Example:  AT+ INTWK =1  **~-~->   ** Enable detect movement.
725 +Example:  AT+ INTWK =1  **~-~->   ** Enable Transport Mode.
649 649  
650 650  
651 651  * (% style="color:blue" %)**Downlink Payload (prefix 0xAF):**
... ... @@ -662,9 +662,25 @@
662 662  
663 663  * (% style="color:blue" %)**AT Command:**
664 664  
665 -(% style="color:#037691" %)**AT+SMOD=xx. **
742 +(% style="color:#037691" %)**AT+SMOD=aa,bb**
666 666  
744 +(% style="color:#037691" %)** aa:**
667 667  
746 +* (% style="color:#037691" %)**1: GPS ONLY(Factory Settings):    **(%%)only get and uplink GPS location info.
747 +* (% style="color:#037691" %)**2: BLE ONLY:              **(%%)Only obtain iBeacon info via BLE and uplink. Design for Indoor tracking.
748 +* (% style="color:#037691" %)**3: GPS/BLE Hybrid:   **(%%)Combination for Indoor and Outdoor tracking.Devices will try to search BLE iBeacon first. If device can't find the iBeacon, it will use GPS for positioning
749 +
750 +(% style="color:#037691" %)**bb:**
751 +
752 +(% style="color:#037691" %)** if aa = 1: **
753 +
754 +* (% style="color:#037691" %)**0 :  **(%%)GPS+ BAT+ State+Tem&Hum
755 +* (% style="color:#037691" %)**1 :**(%%)  GPS +BAT State
756 +
757 +(% style="color:#037691" %)** if aa = 2: **
758 +
759 +* (% style="color:#037691" %)**3 :  **(%%)(iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
760 +
668 668   **Example:**
669 669  
670 670   AT+ SMOD =1,0  **~-~-> ** GPS+ BAT+ State+Tem&Hum
... ... @@ -671,7 +671,7 @@
671 671  
672 672   AT+ SMOD =1,1    **~-~->**  GPS +BAT State
673 673  
674 - AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State。
767 + AT+ SMOD =2,3    **~-~->**  (iBeacon)UUID+ Major + Minor+Power+Rssi+BAT+State
675 675  
676 676  
677 677  * (% style="color:blue" %)**Downlink Payload (prefix 0xA5):**
... ... @@ -702,7 +702,7 @@
702 702  
703 703  
704 704  
705 -=== 3.3.9 Set PDOP value for GPS fix accuracy ===
798 +=== 3.2.9 Set PDOP value for GPS fix accuracy ===
706 706  
707 707  
708 708  PDOP(Position Dilution of Precision) filter, TrackerD will only accept GPS data with a lower PDOP value than pre-configure PDOP value. If device can't get a valid GPS packet within FTIME timeout, it will use the GPS data with lowest PDOP value to server.
... ... @@ -825,6 +825,7 @@
825 825  [[image:1664503635019-941.png]]
826 826  
827 827  
921 +
828 828  * (% style="color:#037691" %)**Go to tools ~-~-> Boards ~-~-> Boards Manager**,(%%) **find the esp32 information and install it.**
829 829  
830 830  [[image:1664503715811-892.png]]
... ... @@ -890,6 +890,8 @@
890 890  |(% style="width:118px" %)B8|(% style="width:67px" %)Grey|(% style="width:123px" %)MTDO/GPIO15
891 891  
892 892  
987 +
988 +
893 893  = 8.  Order Info =
894 894  
895 895  
... ... @@ -905,6 +905,9 @@
905 905  * (% style="color:red" %)**AU915**(%%): Default frequency band AU915
906 906  * (% style="color:red" %)**US915**(%%): Default frequency band US915
907 907  
1004 +
1005 +
1006 +
908 908  = 9.  Packing Info =
909 909  
910 910  
... ... @@ -918,6 +918,8 @@
918 918  * Device Size: 85 x 48 x 15 cm
919 919  * Weight: 50g
920 920  
1020 +
1021 +
921 921  = 10. Support =
922 922  
923 923  
... ... @@ -924,6 +924,8 @@
924 924  * 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.
925 925  * 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]].
926 926  
1028 +
1029 +
927 927  = 11.  Reference =
928 928  
929 929  
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