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Version 154.3 by Xiaoling on 2022/06/11 10:02
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1 (% style="text-align:center" %)
2 [[image:1654912614655-664.png||height="530" width="628"]]
3
4 **Contents:**
5
6 {{toc/}}
7
8
9
10
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12
13
14
15 = 1.  Introduction =
16
17 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18
19 (((
20
21
22 (((
23 (((
24 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.
25 )))
26
27 (((
28
29 )))
30
31 (((
32 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
33 )))
34
35 (((
36
37 )))
38
39 (((
40 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.
41 )))
42
43 (((
44
45 )))
46
47 (((
48 LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 )))
50
51 (((
52
53 )))
54
55 (((
56 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.
57 )))
58
59 (((
60
61 )))
62
63 (((
64 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65
66
67 )))
68 )))
69 )))
70
71 [[image:1654912858581-740.png]]
72
73
74
75
76 == ​1.2  Features ==
77
78 * LoRaWAN 1.0.3 Class A
79 * Ultra low power consumption
80 * Distance Detection by Ultrasonic technology
81 * Flat object range 280mm - 7500mm
82 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
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 * 4000mAh or 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 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
101 )))
102
103
104
105 === 1.3.2  Effective measurement range Reference beam pattern ===
106
107 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
108
109
110
111 [[image:1654852253176-749.png]]
112
113
114
115 (((
116 **(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.**
117 )))
118
119
120 [[image:1654852175653-550.png]](% style="display:none" %) ** **
121
122
123
124 == 1.5 ​ Applications ==
125
126 * Horizontal distance measurement
127 * Liquid level measurement
128 * Parking management system
129 * Object proximity and presence detection
130 * Intelligent trash can management system
131 * Robot obstacle avoidance
132 * Automatic control
133 * Sewer
134 * Bottom water level monitoring
135
136
137
138 == 1.6  Pin mapping and power on ==
139
140
141 [[image:1654847583902-256.png]]
142
143
144
145 = 2.  Configure LDDS75 to connect to LoRaWAN network =
146
147 == 2.1  How it works ==
148
149 (((
150 The LDDS75 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 LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
151 )))
152
153 (((
154 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 LDDS75.
155 )))
156
157
158
159 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
160
161 (((
162 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.
163 )))
164
165 (((
166 [[image:1654848616367-242.png]]
167 )))
168
169 (((
170 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.
171 )))
172
173 (((
174 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
175 )))
176
177 (((
178 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
179 )))
180
181 [[image:image-20220607170145-1.jpeg]]
182
183
184 (((
185 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
186 )))
187
188 (((
189 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
190 )))
191
192 (((
193 **Add APP EUI in the application**
194 )))
195
196 [[image:image-20220610161353-4.png]]
197
198 [[image:image-20220610161353-5.png]]
199
200 [[image:image-20220610161353-6.png]]
201
202
203 [[image:image-20220610161353-7.png]]
204
205
206 You can also choose to create the device manually.
207
208 [[image:image-20220610161538-8.png]]
209
210
211
212 **Add APP KEY and DEV EUI**
213
214 [[image:image-20220610161538-9.png]]
215
216
217
218 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
219
220
221 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
222
223 [[image:image-20220610161724-10.png]]
224
225
226 (((
227 (% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 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.
228 )))
229
230 [[image:1654849068701-275.png]]
231
232
233
234 == 2.3  ​Uplink Payload ==
235
236 (((
237 (((
238 LDDS75 will uplink payload via LoRaWAN with below payload format: 
239 )))
240
241 (((
242 Uplink payload includes in total 4 bytes.
243 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
244 )))
245 )))
246
247 (((
248
249 )))
250
251 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
252 |=(% style="width: 62.5px;" %)(((
253 **Size (bytes)**
254 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
255 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
256 [[Distance>>||anchor="H2.3.2A0Distance"]]
257
258 (unit: mm)
259 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
260 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
261 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
262
263 [[image:1654850511545-399.png]]
264
265
266
267 === 2.3.1  Battery Info ===
268
269
270 Check the battery voltage for LDDS75.
271
272 Ex1: 0x0B45 = 2885mV
273
274 Ex2: 0x0B49 = 2889mV
275
276
277
278 === 2.3.2  Distance ===
279
280 (((
281 Get the distance. Flat object range 280mm - 7500mm.
282 )))
283
284 (((
285 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.**
286 )))
287
288
289 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
290 * 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.
291
292
293
294 === 2.3.3  Interrupt Pin ===
295
296 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.
297
298 **Example:**
299
300 0x00: Normal uplink packet.
301
302 0x01: Interrupt Uplink Packet.
303
304
305
306 === 2.3.4  DS18B20 Temperature sensor ===
307
308 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
309
310 **Example**:
311
312 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
313
314 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
315
316 (% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
317
318
319
320 === 2.3.5  Sensor Flag ===
321
322 (((
323 0x01: Detect Ultrasonic Sensor
324 )))
325
326 (((
327 0x00: No Ultrasonic Sensor
328 )))
329
330
331
332 === 2.3.6  Decode payload in The Things Network ===
333
334 While using TTN network, you can add the payload format to decode the payload.
335
336
337 [[image:1654850829385-439.png]]
338
339 The payload decoder function for TTN V3 is here:
340
341 (((
342 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/]]
343 )))
344
345
346
347 == 2.4  Uplink Interval ==
348
349 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"]]
350
351
352
353 == 2.5  ​Show Data in DataCake IoT Server ==
354
355 (((
356 [[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:
357 )))
358
359 (((
360
361 )))
362
363 (((
364 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
365 )))
366
367 (((
368 (% 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:**
369 )))
370
371
372 [[image:1654592790040-760.png]]
373
374
375 [[image:1654592800389-571.png]]
376
377
378 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
379
380 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
381
382 [[image:1654851029373-510.png]]
383
384
385 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
386
387 [[image:image-20220610165129-11.png||height="595" width="1088"]]
388
389
390
391 == 2.6  Frequency Plans ==
392
393 (((
394 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.
395 )))
396
397
398
399 === 2.6.1  EU863-870 (EU868) ===
400
401 (((
402 (% style="color:blue" %)**Uplink:**
403 )))
404
405 (((
406 868.1 - SF7BW125 to SF12BW125
407 )))
408
409 (((
410 868.3 - SF7BW125 to SF12BW125 and SF7BW250
411 )))
412
413 (((
414 868.5 - SF7BW125 to SF12BW125
415 )))
416
417 (((
418 867.1 - SF7BW125 to SF12BW125
419 )))
420
421 (((
422 867.3 - SF7BW125 to SF12BW125
423 )))
424
425 (((
426 867.5 - SF7BW125 to SF12BW125
427 )))
428
429 (((
430 867.7 - SF7BW125 to SF12BW125
431 )))
432
433 (((
434 867.9 - SF7BW125 to SF12BW125
435 )))
436
437 (((
438 868.8 - FSK
439 )))
440
441 (((
442
443 )))
444
445 (((
446 (% style="color:blue" %)**Downlink:**
447 )))
448
449 (((
450 Uplink channels 1-9 (RX1)
451 )))
452
453 (((
454 869.525 - SF9BW125 (RX2 downlink only)
455 )))
456
457
458
459 === 2.6.2  US902-928(US915) ===
460
461 (((
462 Used in USA, Canada and South America. Default use CHE=2
463
464 (% style="color:blue" %)**Uplink:**
465
466 903.9 - SF7BW125 to SF10BW125
467
468 904.1 - SF7BW125 to SF10BW125
469
470 904.3 - SF7BW125 to SF10BW125
471
472 904.5 - SF7BW125 to SF10BW125
473
474 904.7 - SF7BW125 to SF10BW125
475
476 904.9 - SF7BW125 to SF10BW125
477
478 905.1 - SF7BW125 to SF10BW125
479
480 905.3 - SF7BW125 to SF10BW125
481
482
483 (% style="color:blue" %)**Downlink:**
484
485 923.3 - SF7BW500 to SF12BW500
486
487 923.9 - SF7BW500 to SF12BW500
488
489 924.5 - SF7BW500 to SF12BW500
490
491 925.1 - SF7BW500 to SF12BW500
492
493 925.7 - SF7BW500 to SF12BW500
494
495 926.3 - SF7BW500 to SF12BW500
496
497 926.9 - SF7BW500 to SF12BW500
498
499 927.5 - SF7BW500 to SF12BW500
500
501 923.3 - SF12BW500(RX2 downlink only)
502
503
504
505 )))
506
507 === 2.6.3  CN470-510 (CN470) ===
508
509 (((
510 Used in China, Default use CHE=1
511 )))
512
513 (((
514 (% style="color:blue" %)**Uplink:**
515 )))
516
517 (((
518 486.3 - SF7BW125 to SF12BW125
519 )))
520
521 (((
522 486.5 - SF7BW125 to SF12BW125
523 )))
524
525 (((
526 486.7 - SF7BW125 to SF12BW125
527 )))
528
529 (((
530 486.9 - SF7BW125 to SF12BW125
531 )))
532
533 (((
534 487.1 - SF7BW125 to SF12BW125
535 )))
536
537 (((
538 487.3 - SF7BW125 to SF12BW125
539 )))
540
541 (((
542 487.5 - SF7BW125 to SF12BW125
543 )))
544
545 (((
546 487.7 - SF7BW125 to SF12BW125
547 )))
548
549 (((
550
551 )))
552
553 (((
554 (% style="color:blue" %)**Downlink:**
555 )))
556
557 (((
558 506.7 - SF7BW125 to SF12BW125
559 )))
560
561 (((
562 506.9 - SF7BW125 to SF12BW125
563 )))
564
565 (((
566 507.1 - SF7BW125 to SF12BW125
567 )))
568
569 (((
570 507.3 - SF7BW125 to SF12BW125
571 )))
572
573 (((
574 507.5 - SF7BW125 to SF12BW125
575 )))
576
577 (((
578 507.7 - SF7BW125 to SF12BW125
579 )))
580
581 (((
582 507.9 - SF7BW125 to SF12BW125
583 )))
584
585 (((
586 508.1 - SF7BW125 to SF12BW125
587 )))
588
589 (((
590 505.3 - SF12BW125 (RX2 downlink only)
591 )))
592
593
594
595 === 2.6.4  AU915-928(AU915) ===
596
597 (((
598 Default use CHE=2
599
600 (% style="color:blue" %)**Uplink:**
601
602 916.8 - SF7BW125 to SF12BW125
603
604 917.0 - SF7BW125 to SF12BW125
605
606 917.2 - SF7BW125 to SF12BW125
607
608 917.4 - SF7BW125 to SF12BW125
609
610 917.6 - SF7BW125 to SF12BW125
611
612 917.8 - SF7BW125 to SF12BW125
613
614 918.0 - SF7BW125 to SF12BW125
615
616 918.2 - SF7BW125 to SF12BW125
617
618
619 (% style="color:blue" %)**Downlink:**
620
621 923.3 - SF7BW500 to SF12BW500
622
623 923.9 - SF7BW500 to SF12BW500
624
625 924.5 - SF7BW500 to SF12BW500
626
627 925.1 - SF7BW500 to SF12BW500
628
629 925.7 - SF7BW500 to SF12BW500
630
631 926.3 - SF7BW500 to SF12BW500
632
633 926.9 - SF7BW500 to SF12BW500
634
635 927.5 - SF7BW500 to SF12BW500
636
637 923.3 - SF12BW500(RX2 downlink only)
638
639
640
641 )))
642
643 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
644
645 (((
646 (% style="color:blue" %)**Default Uplink channel:**
647 )))
648
649 (((
650 923.2 - SF7BW125 to SF10BW125
651 )))
652
653 (((
654 923.4 - SF7BW125 to SF10BW125
655 )))
656
657 (((
658
659 )))
660
661 (((
662 (% style="color:blue" %)**Additional Uplink Channel**:
663 )))
664
665 (((
666 (OTAA mode, channel added by JoinAccept message)
667 )))
668
669 (((
670
671 )))
672
673 (((
674 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
675 )))
676
677 (((
678 922.2 - SF7BW125 to SF10BW125
679 )))
680
681 (((
682 922.4 - SF7BW125 to SF10BW125
683 )))
684
685 (((
686 922.6 - SF7BW125 to SF10BW125
687 )))
688
689 (((
690 922.8 - SF7BW125 to SF10BW125
691 )))
692
693 (((
694 923.0 - SF7BW125 to SF10BW125
695 )))
696
697 (((
698 922.0 - SF7BW125 to SF10BW125
699 )))
700
701 (((
702
703 )))
704
705 (((
706 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
707 )))
708
709 (((
710 923.6 - SF7BW125 to SF10BW125
711 )))
712
713 (((
714 923.8 - SF7BW125 to SF10BW125
715 )))
716
717 (((
718 924.0 - SF7BW125 to SF10BW125
719 )))
720
721 (((
722 924.2 - SF7BW125 to SF10BW125
723 )))
724
725 (((
726 924.4 - SF7BW125 to SF10BW125
727 )))
728
729 (((
730 924.6 - SF7BW125 to SF10BW125
731 )))
732
733 (((
734
735 )))
736
737 (((
738 (% style="color:blue" %)**Downlink:**
739 )))
740
741 (((
742 Uplink channels 1-8 (RX1)
743 )))
744
745 (((
746 923.2 - SF10BW125 (RX2)
747 )))
748
749
750
751 === 2.6.6  KR920-923 (KR920) ===
752
753 (((
754 (% style="color:blue" %)**Default channel:**
755 )))
756
757 (((
758 922.1 - SF7BW125 to SF12BW125
759 )))
760
761 (((
762 922.3 - SF7BW125 to SF12BW125
763 )))
764
765 (((
766 922.5 - SF7BW125 to SF12BW125
767 )))
768
769 (((
770
771 )))
772
773 (((
774 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
775 )))
776
777 (((
778 922.1 - SF7BW125 to SF12BW125
779 )))
780
781 (((
782 922.3 - SF7BW125 to SF12BW125
783 )))
784
785 (((
786 922.5 - SF7BW125 to SF12BW125
787 )))
788
789 (((
790 922.7 - SF7BW125 to SF12BW125
791 )))
792
793 (((
794 922.9 - SF7BW125 to SF12BW125
795 )))
796
797 (((
798 923.1 - SF7BW125 to SF12BW125
799 )))
800
801 (((
802 923.3 - SF7BW125 to SF12BW125
803 )))
804
805 (((
806
807 )))
808
809 (((
810 (% style="color:blue" %)**Downlink:**
811 )))
812
813 (((
814 Uplink channels 1-7(RX1)
815 )))
816
817 (((
818 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
819 )))
820
821
822
823 === 2.6.7  IN865-867 (IN865) ===
824
825 (((
826 (% style="color:blue" %)**Uplink:**
827 )))
828
829 (((
830 865.0625 - SF7BW125 to SF12BW125
831 )))
832
833 (((
834 865.4025 - SF7BW125 to SF12BW125
835 )))
836
837 (((
838 865.9850 - SF7BW125 to SF12BW125
839 )))
840
841 (((
842
843 )))
844
845 (((
846 (% style="color:blue" %)**Downlink:**
847 )))
848
849 (((
850 Uplink channels 1-3 (RX1)
851 )))
852
853 (((
854 866.550 - SF10BW125 (RX2)
855 )))
856
857
858
859 == 2.7  LED Indicator ==
860
861 The LDDS75 has an internal LED which is to show the status of different state.
862
863
864 * Blink once when device power on.
865 * The device detects the sensor and flashes 5 times.
866 * Solid ON for 5 seconds once device successful Join the network.
867 * Blink once when device transmit a packet.
868
869
870
871 == 2.8  ​Firmware Change Log ==
872
873
874 (((
875 **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/]]
876 )))
877
878 (((
879
880 )))
881
882 (((
883 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
884 )))
885
886
887
888 == 2.9  Mechanical ==
889
890
891 [[image:image-20220610172003-1.png]]
892
893
894 [[image:image-20220610172003-2.png]]
895
896
897
898 == 2.10  Battery Analysis ==
899
900 === 2.10.1  Battery Type ===
901
902 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.
903
904
905 The battery related documents as below:
906
907 * (((
908 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
909 )))
910 * (((
911 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
912 )))
913 * (((
914 [[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]]
915 )))
916
917 [[image:image-20220610172400-3.png]]
918
919
920
921 === 2.10.2  Replace the battery ===
922
923 (((
924 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.
925 )))
926
927 (((
928
929 )))
930
931 (((
932 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)
933 )))
934
935
936
937 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
938
939 (((
940 (((
941 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
942 )))
943 )))
944
945 * (((
946 (((
947 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
948 )))
949 )))
950 * (((
951 (((
952 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
953 )))
954 )))
955
956 (((
957 (((
958
959 )))
960
961 (((
962 There are two kinds of commands to configure LDDS75, they are:
963 )))
964 )))
965
966 * (((
967 (((
968 (% style="color:#4f81bd" %)** General Commands**.
969 )))
970 )))
971
972 (((
973 (((
974 These commands are to configure:
975 )))
976 )))
977
978 * (((
979 (((
980 General system settings like: uplink interval.
981 )))
982 )))
983 * (((
984 (((
985 LoRaWAN protocol & radio related command.
986 )))
987 )))
988
989 (((
990 (((
991 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]]
992 )))
993 )))
994
995 (((
996 (((
997
998 )))
999 )))
1000
1001 * (((
1002 (((
1003 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1004 )))
1005 )))
1006
1007 (((
1008 (((
1009 These commands only valid for LDDS75, as below:
1010 )))
1011 )))
1012
1013
1014
1015 == 3.1  Access AT Commands ==
1016
1017 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.
1018
1019 [[image:image-20220610172924-4.png||height="483" width="988"]]
1020
1021
1022 Or if you have below board, use below connection:
1023
1024
1025 [[image:image-20220610172924-5.png]]
1026
1027
1028 (((
1029 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:
1030 )))
1031
1032
1033 [[image:image-20220610172924-6.png||height="601" width="860"]]
1034
1035
1036
1037 == 3.2  Set Transmit Interval Time ==
1038
1039 Feature: Change LoRaWAN End Node Transmit Interval.
1040
1041 (% style="color:#037691" %)**AT Command: AT+TDC**
1042
1043 [[image:image-20220610173409-7.png]]
1044
1045
1046 (((
1047 (% style="color:#037691" %)**Downlink Command: 0x01**
1048 )))
1049
1050 (((
1051 (((
1052 Format: Command Code (0x01) followed by 3 bytes time value.
1053
1054 (((
1055 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1056 )))
1057
1058 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1059 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1060 )))
1061 )))
1062
1063
1064
1065
1066
1067 == 3.3  Set Interrupt Mode ==
1068
1069 Feature, Set Interrupt mode for GPIO_EXIT.
1070
1071 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1072
1073 [[image:image-20220610174917-9.png]]
1074
1075
1076 (% style="color:#037691" %)**Downlink Command: 0x06**
1077
1078 Format: Command Code (0x06) followed by 3 bytes.
1079
1080 (((
1081 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1082 )))
1083
1084 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1085 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1086
1087
1088
1089 = 4.  FAQ =
1090
1091 == 4.1  What is the frequency plan for LDDS75? ==
1092
1093 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"]]
1094
1095
1096
1097 == 4.2  How to change the LoRa Frequency Bands/Region ==
1098
1099 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1100 When downloading the images, choose the required image file for download. ​
1101
1102
1103
1104 == 4.3  Can I use LDDS75 in condensation environment? ==
1105
1106 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1107
1108
1109
1110 = 5.  Trouble Shooting =
1111
1112 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1113
1114 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1115
1116
1117 == 5.2  AT Command input doesn't work ==
1118
1119 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.
1120
1121 (((
1122
1123 )))
1124
1125
1126 = 6.  Order Info =
1127
1128
1129 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1130
1131
1132 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1133
1134 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1135 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1136 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1137 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1138 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1139 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1140 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1141 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1142
1143 (% style="color:blue" %)**YY**(%%): Battery Option
1144
1145 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1146 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1147
1148
1149
1150 = 7. ​ Packing Info =
1151
1152
1153 **Package Includes**:
1154
1155 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1156
1157 **Dimension and weight**:
1158
1159 * Device Size: cm
1160 * Device Weight: g
1161 * Package Size / pcs : cm
1162 * Weight / pcs : g
1163
1164
1165
1166 = 8.  ​Support =
1167
1168 * 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.
1169 * 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]].