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Version 158.3 by Xiaoling on 2022/06/11 10:29
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1 (% style="text-align:center" %)
2 [[image:1654912614655-664.png||height="530" width="628"]]
3
4 **Contents:**
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12
13
14 = 1.  Introduction =
15
16 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
17
18 (((
19
20
21 (((
22 (((
23 The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
24 )))
25
26 (((
27
28 )))
29
30 (((
31 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
32 )))
33
34 (((
35
36 )))
37
38 (((
39 The LoRa wireless technology used in LDDS45 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
40 )))
41
42 (((
43
44 )))
45
46 (((
47 LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
48 )))
49
50 (((
51
52 )))
53
54 (((
55 Each LDDS45 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
56 )))
57
58 (((
59
60 )))
61
62 (((
63 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
64
65
66 )))
67 )))
68 )))
69
70 [[image:1654912858581-740.png]]
71
72
73
74
75 == ​1.2  Features ==
76
77 * LoRaWAN 1.0.3 Class A
78 * Ultra-low power consumption
79 * Distance Detection by Ultrasonic technology
80 * Flat object range 30mm - 4500mm
81 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
82 * Measure Angle: 60°
83 * Cable Length : 25cm
84 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
85 * AT Commands to change parameters
86 * Uplink on periodically
87 * Downlink to change configure
88 * IP66 Waterproof Enclosure
89 * 8500mAh Battery for long term use
90
91
92
93 == 1.3  Specification ==
94
95 === 1.3.1  Rated environmental conditions ===
96
97 [[image:image-20220610154839-1.png]]
98
99
100 (((
101 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
102
103 **~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
104 )))
105
106
107
108 === 1.3.2  Effective measurement range Reference beam pattern ===
109
110 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
111
112
113
114 [[image:1654852253176-749.png]]
115
116
117
118 (((
119 **(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
120 )))
121
122
123 [[image:1654852175653-550.png]](% style="display:none" %) ** **
124
125
126
127 == 1.5 ​ Applications ==
128
129 * Horizontal distance measurement
130 * Liquid level measurement
131 * Parking management system
132 * Object proximity and presence detection
133 * Intelligent trash can management system
134 * Robot obstacle avoidance
135 * Automatic control
136 * Sewer
137 * Bottom water level monitoring
138
139
140
141 == 1.6  Pin mapping and power on ==
142
143
144 [[image:1654847583902-256.png]]
145
146
147
148 = 2.  Configure LDDS45 to connect to LoRaWAN network =
149
150 == 2.1  How it works ==
151
152 (((
153 The LDDS45 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS45. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
154 )))
155
156 (((
157 In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS45.
158 )))
159
160
161
162 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
163
164 (((
165 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
166
167
168 )))
169
170 [[image:1654913911773-521.png]]
171
172
173 (((
174
175 )))
176
177 (((
178 The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
179 )))
180
181 (((
182 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
183 )))
184
185 (((
186 Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
187 )))
188
189 [[image:image-20220607170145-1.jpeg]]
190
191
192 (((
193 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
194 )))
195
196 (((
197 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
198 )))
199
200 (((
201 **Add APP EUI in the application**
202 )))
203
204 [[image:image-20220610161353-4.png]]
205
206 [[image:image-20220610161353-5.png]]
207
208 [[image:image-20220610161353-6.png]]
209
210
211 [[image:image-20220610161353-7.png]]
212
213 **Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
214
215
216
217 You can also choose to create the device manually.
218
219 [[image:image-20220610161538-8.png]]
220
221
222
223 **Add APP KEY and DEV EUI**
224
225 [[image:image-20220610161538-9.png]]
226
227
228
229 (% style="color:blue" %)**Step 2**(%%): Power on LDDS45
230
231
232 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
233
234 [[image:image-20220611102908-2.png]]
235
236
237 (((
238 (% style="color:blue" %)**Step 3**(%%)**:** The LDDS45 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
239 )))
240
241 [[image:1654849068701-275.png]]
242
243
244
245 == 2.3  ​Uplink Payload ==
246
247 (((
248 (((
249 LDDS75 will uplink payload via LoRaWAN with below payload format: 
250 )))
251
252 (((
253 Uplink payload includes in total 4 bytes.
254 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
255 )))
256 )))
257
258 (((
259
260 )))
261
262 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
263 |=(% style="width: 62.5px;" %)(((
264 **Size (bytes)**
265 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
266 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
267 [[Distance>>||anchor="H2.3.2A0Distance"]]
268
269 (unit: mm)
270 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
271 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
272 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
273
274 [[image:1654850511545-399.png]]
275
276
277
278 === 2.3.1  Battery Info ===
279
280
281 Check the battery voltage for LDDS75.
282
283 Ex1: 0x0B45 = 2885mV
284
285 Ex2: 0x0B49 = 2889mV
286
287
288
289 === 2.3.2  Distance ===
290
291 (((
292 Get the distance. Flat object range 280mm - 7500mm.
293 )))
294
295 (((
296 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:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
297 )))
298
299
300 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
301 * If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
302
303
304
305 === 2.3.3  Interrupt Pin ===
306
307 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
308
309 **Example:**
310
311 0x00: Normal uplink packet.
312
313 0x01: Interrupt Uplink Packet.
314
315
316
317 === 2.3.4  DS18B20 Temperature sensor ===
318
319 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
320
321 **Example**:
322
323 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
324
325 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
326
327 (% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
328
329
330
331 === 2.3.5  Sensor Flag ===
332
333 (((
334 0x01: Detect Ultrasonic Sensor
335 )))
336
337 (((
338 0x00: No Ultrasonic Sensor
339 )))
340
341
342
343 === 2.3.6  Decode payload in The Things Network ===
344
345 While using TTN network, you can add the payload format to decode the payload.
346
347
348 [[image:1654850829385-439.png]]
349
350 The payload decoder function for TTN V3 is here:
351
352 (((
353 LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
354 )))
355
356
357
358 == 2.4  Uplink Interval ==
359
360 The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
361
362
363
364 == 2.5  ​Show Data in DataCake IoT Server ==
365
366 (((
367 [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
368 )))
369
370 (((
371
372 )))
373
374 (((
375 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
376 )))
377
378 (((
379 (% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
380 )))
381
382
383 [[image:1654592790040-760.png]]
384
385
386 [[image:1654592800389-571.png]]
387
388
389 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
390
391 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
392
393 [[image:1654851029373-510.png]]
394
395
396 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
397
398 [[image:image-20220610165129-11.png||height="595" width="1088"]]
399
400
401
402 == 2.6  Frequency Plans ==
403
404 (((
405 The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
406 )))
407
408
409
410 === 2.6.1  EU863-870 (EU868) ===
411
412 (((
413 (% style="color:blue" %)**Uplink:**
414 )))
415
416 (((
417 868.1 - SF7BW125 to SF12BW125
418 )))
419
420 (((
421 868.3 - SF7BW125 to SF12BW125 and SF7BW250
422 )))
423
424 (((
425 868.5 - SF7BW125 to SF12BW125
426 )))
427
428 (((
429 867.1 - SF7BW125 to SF12BW125
430 )))
431
432 (((
433 867.3 - SF7BW125 to SF12BW125
434 )))
435
436 (((
437 867.5 - SF7BW125 to SF12BW125
438 )))
439
440 (((
441 867.7 - SF7BW125 to SF12BW125
442 )))
443
444 (((
445 867.9 - SF7BW125 to SF12BW125
446 )))
447
448 (((
449 868.8 - FSK
450 )))
451
452 (((
453
454 )))
455
456 (((
457 (% style="color:blue" %)**Downlink:**
458 )))
459
460 (((
461 Uplink channels 1-9 (RX1)
462 )))
463
464 (((
465 869.525 - SF9BW125 (RX2 downlink only)
466 )))
467
468
469
470 === 2.6.2  US902-928(US915) ===
471
472 (((
473 Used in USA, Canada and South America. Default use CHE=2
474
475 (% style="color:blue" %)**Uplink:**
476
477 903.9 - SF7BW125 to SF10BW125
478
479 904.1 - SF7BW125 to SF10BW125
480
481 904.3 - SF7BW125 to SF10BW125
482
483 904.5 - SF7BW125 to SF10BW125
484
485 904.7 - SF7BW125 to SF10BW125
486
487 904.9 - SF7BW125 to SF10BW125
488
489 905.1 - SF7BW125 to SF10BW125
490
491 905.3 - SF7BW125 to SF10BW125
492
493
494 (% style="color:blue" %)**Downlink:**
495
496 923.3 - SF7BW500 to SF12BW500
497
498 923.9 - SF7BW500 to SF12BW500
499
500 924.5 - SF7BW500 to SF12BW500
501
502 925.1 - SF7BW500 to SF12BW500
503
504 925.7 - SF7BW500 to SF12BW500
505
506 926.3 - SF7BW500 to SF12BW500
507
508 926.9 - SF7BW500 to SF12BW500
509
510 927.5 - SF7BW500 to SF12BW500
511
512 923.3 - SF12BW500(RX2 downlink only)
513
514
515
516 )))
517
518 === 2.6.3  CN470-510 (CN470) ===
519
520 (((
521 Used in China, Default use CHE=1
522 )))
523
524 (((
525 (% style="color:blue" %)**Uplink:**
526 )))
527
528 (((
529 486.3 - SF7BW125 to SF12BW125
530 )))
531
532 (((
533 486.5 - SF7BW125 to SF12BW125
534 )))
535
536 (((
537 486.7 - SF7BW125 to SF12BW125
538 )))
539
540 (((
541 486.9 - SF7BW125 to SF12BW125
542 )))
543
544 (((
545 487.1 - SF7BW125 to SF12BW125
546 )))
547
548 (((
549 487.3 - SF7BW125 to SF12BW125
550 )))
551
552 (((
553 487.5 - SF7BW125 to SF12BW125
554 )))
555
556 (((
557 487.7 - SF7BW125 to SF12BW125
558 )))
559
560 (((
561
562 )))
563
564 (((
565 (% style="color:blue" %)**Downlink:**
566 )))
567
568 (((
569 506.7 - SF7BW125 to SF12BW125
570 )))
571
572 (((
573 506.9 - SF7BW125 to SF12BW125
574 )))
575
576 (((
577 507.1 - SF7BW125 to SF12BW125
578 )))
579
580 (((
581 507.3 - SF7BW125 to SF12BW125
582 )))
583
584 (((
585 507.5 - SF7BW125 to SF12BW125
586 )))
587
588 (((
589 507.7 - SF7BW125 to SF12BW125
590 )))
591
592 (((
593 507.9 - SF7BW125 to SF12BW125
594 )))
595
596 (((
597 508.1 - SF7BW125 to SF12BW125
598 )))
599
600 (((
601 505.3 - SF12BW125 (RX2 downlink only)
602 )))
603
604
605
606 === 2.6.4  AU915-928(AU915) ===
607
608 (((
609 Default use CHE=2
610
611 (% style="color:blue" %)**Uplink:**
612
613 916.8 - SF7BW125 to SF12BW125
614
615 917.0 - SF7BW125 to SF12BW125
616
617 917.2 - SF7BW125 to SF12BW125
618
619 917.4 - SF7BW125 to SF12BW125
620
621 917.6 - SF7BW125 to SF12BW125
622
623 917.8 - SF7BW125 to SF12BW125
624
625 918.0 - SF7BW125 to SF12BW125
626
627 918.2 - SF7BW125 to SF12BW125
628
629
630 (% style="color:blue" %)**Downlink:**
631
632 923.3 - SF7BW500 to SF12BW500
633
634 923.9 - SF7BW500 to SF12BW500
635
636 924.5 - SF7BW500 to SF12BW500
637
638 925.1 - SF7BW500 to SF12BW500
639
640 925.7 - SF7BW500 to SF12BW500
641
642 926.3 - SF7BW500 to SF12BW500
643
644 926.9 - SF7BW500 to SF12BW500
645
646 927.5 - SF7BW500 to SF12BW500
647
648 923.3 - SF12BW500(RX2 downlink only)
649
650
651
652 )))
653
654 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
655
656 (((
657 (% style="color:blue" %)**Default Uplink channel:**
658 )))
659
660 (((
661 923.2 - SF7BW125 to SF10BW125
662 )))
663
664 (((
665 923.4 - SF7BW125 to SF10BW125
666 )))
667
668 (((
669
670 )))
671
672 (((
673 (% style="color:blue" %)**Additional Uplink Channel**:
674 )))
675
676 (((
677 (OTAA mode, channel added by JoinAccept message)
678 )))
679
680 (((
681
682 )))
683
684 (((
685 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
686 )))
687
688 (((
689 922.2 - SF7BW125 to SF10BW125
690 )))
691
692 (((
693 922.4 - SF7BW125 to SF10BW125
694 )))
695
696 (((
697 922.6 - SF7BW125 to SF10BW125
698 )))
699
700 (((
701 922.8 - SF7BW125 to SF10BW125
702 )))
703
704 (((
705 923.0 - SF7BW125 to SF10BW125
706 )))
707
708 (((
709 922.0 - SF7BW125 to SF10BW125
710 )))
711
712 (((
713
714 )))
715
716 (((
717 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
718 )))
719
720 (((
721 923.6 - SF7BW125 to SF10BW125
722 )))
723
724 (((
725 923.8 - SF7BW125 to SF10BW125
726 )))
727
728 (((
729 924.0 - SF7BW125 to SF10BW125
730 )))
731
732 (((
733 924.2 - SF7BW125 to SF10BW125
734 )))
735
736 (((
737 924.4 - SF7BW125 to SF10BW125
738 )))
739
740 (((
741 924.6 - SF7BW125 to SF10BW125
742 )))
743
744 (((
745
746 )))
747
748 (((
749 (% style="color:blue" %)**Downlink:**
750 )))
751
752 (((
753 Uplink channels 1-8 (RX1)
754 )))
755
756 (((
757 923.2 - SF10BW125 (RX2)
758 )))
759
760
761
762 === 2.6.6  KR920-923 (KR920) ===
763
764 (((
765 (% style="color:blue" %)**Default channel:**
766 )))
767
768 (((
769 922.1 - SF7BW125 to SF12BW125
770 )))
771
772 (((
773 922.3 - SF7BW125 to SF12BW125
774 )))
775
776 (((
777 922.5 - SF7BW125 to SF12BW125
778 )))
779
780 (((
781
782 )))
783
784 (((
785 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
786 )))
787
788 (((
789 922.1 - SF7BW125 to SF12BW125
790 )))
791
792 (((
793 922.3 - SF7BW125 to SF12BW125
794 )))
795
796 (((
797 922.5 - SF7BW125 to SF12BW125
798 )))
799
800 (((
801 922.7 - SF7BW125 to SF12BW125
802 )))
803
804 (((
805 922.9 - SF7BW125 to SF12BW125
806 )))
807
808 (((
809 923.1 - SF7BW125 to SF12BW125
810 )))
811
812 (((
813 923.3 - SF7BW125 to SF12BW125
814 )))
815
816 (((
817
818 )))
819
820 (((
821 (% style="color:blue" %)**Downlink:**
822 )))
823
824 (((
825 Uplink channels 1-7(RX1)
826 )))
827
828 (((
829 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
830 )))
831
832
833
834 === 2.6.7  IN865-867 (IN865) ===
835
836 (((
837 (% style="color:blue" %)**Uplink:**
838 )))
839
840 (((
841 865.0625 - SF7BW125 to SF12BW125
842 )))
843
844 (((
845 865.4025 - SF7BW125 to SF12BW125
846 )))
847
848 (((
849 865.9850 - SF7BW125 to SF12BW125
850 )))
851
852 (((
853
854 )))
855
856 (((
857 (% style="color:blue" %)**Downlink:**
858 )))
859
860 (((
861 Uplink channels 1-3 (RX1)
862 )))
863
864 (((
865 866.550 - SF10BW125 (RX2)
866 )))
867
868
869
870 == 2.7  LED Indicator ==
871
872 The LDDS75 has an internal LED which is to show the status of different state.
873
874
875 * Blink once when device power on.
876 * The device detects the sensor and flashes 5 times.
877 * Solid ON for 5 seconds once device successful Join the network.
878 * Blink once when device transmit a packet.
879
880
881
882 == 2.8  ​Firmware Change Log ==
883
884
885 (((
886 **Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
887 )))
888
889 (((
890
891 )))
892
893 (((
894 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
895 )))
896
897
898
899 == 2.9  Mechanical ==
900
901
902 [[image:image-20220610172003-1.png]]
903
904
905 [[image:image-20220610172003-2.png]]
906
907
908
909 == 2.10  Battery Analysis ==
910
911 === 2.10.1  Battery Type ===
912
913 The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-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.
914
915
916 The battery related documents as below:
917
918 * (((
919 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
920 )))
921 * (((
922 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
923 )))
924 * (((
925 [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
926 )))
927
928 [[image:image-20220610172400-3.png]]
929
930
931
932 === 2.10.2  Replace the battery ===
933
934 (((
935 You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
936 )))
937
938 (((
939
940 )))
941
942 (((
943 The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
944 )))
945
946
947
948 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
949
950 (((
951 (((
952 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
953 )))
954 )))
955
956 * (((
957 (((
958 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
959 )))
960 )))
961 * (((
962 (((
963 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
964 )))
965 )))
966
967 (((
968 (((
969
970 )))
971
972 (((
973 There are two kinds of commands to configure LDDS75, they are:
974 )))
975 )))
976
977 * (((
978 (((
979 (% style="color:#4f81bd" %)** General Commands**.
980 )))
981 )))
982
983 (((
984 (((
985 These commands are to configure:
986 )))
987 )))
988
989 * (((
990 (((
991 General system settings like: uplink interval.
992 )))
993 )))
994 * (((
995 (((
996 LoRaWAN protocol & radio related command.
997 )))
998 )))
999
1000 (((
1001 (((
1002 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1003 )))
1004 )))
1005
1006 (((
1007 (((
1008
1009 )))
1010 )))
1011
1012 * (((
1013 (((
1014 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1015 )))
1016 )))
1017
1018 (((
1019 (((
1020 These commands only valid for LDDS75, as below:
1021 )))
1022 )))
1023
1024
1025
1026 == 3.1  Access AT Commands ==
1027
1028 LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1029
1030 [[image:image-20220610172924-4.png||height="483" width="988"]]
1031
1032
1033 Or if you have below board, use below connection:
1034
1035
1036 [[image:image-20220610172924-5.png]]
1037
1038
1039 (((
1040 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1041 )))
1042
1043
1044 [[image:image-20220610172924-6.png||height="601" width="860"]]
1045
1046
1047
1048 == 3.2  Set Transmit Interval Time ==
1049
1050 Feature: Change LoRaWAN End Node Transmit Interval.
1051
1052 (% style="color:#037691" %)**AT Command: AT+TDC**
1053
1054 [[image:image-20220610173409-7.png]]
1055
1056
1057 (((
1058 (% style="color:#037691" %)**Downlink Command: 0x01**
1059 )))
1060
1061 (((
1062 (((
1063 Format: Command Code (0x01) followed by 3 bytes time value.
1064
1065 (((
1066 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1067 )))
1068
1069 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1070 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1071 )))
1072 )))
1073
1074
1075
1076
1077
1078 == 3.3  Set Interrupt Mode ==
1079
1080 Feature, Set Interrupt mode for GPIO_EXIT.
1081
1082 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1083
1084 [[image:image-20220610174917-9.png]]
1085
1086
1087 (% style="color:#037691" %)**Downlink Command: 0x06**
1088
1089 Format: Command Code (0x06) followed by 3 bytes.
1090
1091 (((
1092 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1093 )))
1094
1095 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1096 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1097
1098
1099
1100 = 4.  FAQ =
1101
1102 == 4.1  What is the frequency plan for LDDS75? ==
1103
1104 LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
1105
1106
1107
1108 == 4.2  How to change the LoRa Frequency Bands/Region ==
1109
1110 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1111 When downloading the images, choose the required image file for download. ​
1112
1113
1114
1115 == 4.3  Can I use LDDS75 in condensation environment? ==
1116
1117 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1118
1119
1120
1121 = 5.  Trouble Shooting =
1122
1123 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1124
1125 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1126
1127
1128 == 5.2  AT Command input doesn't work ==
1129
1130 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.
1131
1132 (((
1133
1134 )))
1135
1136
1137 = 6.  Order Info =
1138
1139
1140 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1141
1142
1143 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1144
1145 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1146 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1147 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1148 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1149 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1150 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1151 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1152 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1153
1154 (% style="color:blue" %)**YY**(%%): Battery Option
1155
1156 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1157 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1158
1159
1160
1161 = 7. ​ Packing Info =
1162
1163
1164 **Package Includes**:
1165
1166 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1167
1168 **Dimension and weight**:
1169
1170 * Device Size: cm
1171 * Device Weight: g
1172 * Package Size / pcs : cm
1173 * Weight / pcs : g
1174
1175
1176
1177 = 8.  ​Support =
1178
1179 * 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.
1180 * 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]].