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Version 155.3 by Xiaoling on 2022/06/11 10:19
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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 30mm - 4500mm
82 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
83 * Measure Angle: 60°
84 * Cable Length : 25cm
85 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
86 * AT Commands to change parameters
87 * Uplink on periodically
88 * Downlink to change configure
89 * IP66 Waterproof Enclosure
90 * 8500mAh Battery for long term use
91
92
93
94 == 1.3  Specification ==
95
96 === 1.3.1  Rated environmental conditions ===
97
98 [[image:image-20220610154839-1.png]]
99
100
101 (((
102 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
103
104 **~ 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)**
105 )))
106
107
108
109 === 1.3.2  Effective measurement range Reference beam pattern ===
110
111 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
112
113
114
115 [[image:1654852253176-749.png]]
116
117
118
119 (((
120 **(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.**
121 )))
122
123
124 [[image:1654852175653-550.png]](% style="display:none" %) ** **
125
126
127
128 == 1.5 ​ Applications ==
129
130 * Horizontal distance measurement
131 * Liquid level measurement
132 * Parking management system
133 * Object proximity and presence detection
134 * Intelligent trash can management system
135 * Robot obstacle avoidance
136 * Automatic control
137 * Sewer
138 * Bottom water level monitoring
139
140
141
142 == 1.6  Pin mapping and power on ==
143
144
145 [[image:1654847583902-256.png]]
146
147
148
149 = 2.  Configure LDDS45 to connect to LoRaWAN network =
150
151 == 2.1  How it works ==
152
153 (((
154 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
155 )))
156
157 (((
158 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.
159 )))
160
161
162
163 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
164
165 (((
166 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.
167
168
169 )))
170
171 [[image:1654913911773-521.png]]
172
173
174 (((
175
176 )))
177
178 (((
179 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.
180 )))
181
182 (((
183 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
184 )))
185
186 (((
187 Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
188 )))
189
190 [[image:image-20220607170145-1.jpeg]]
191
192
193 (((
194 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
195 )))
196
197 (((
198 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
199 )))
200
201 (((
202 **Add APP EUI in the application**
203 )))
204
205 [[image:image-20220610161353-4.png]]
206
207 [[image:image-20220610161353-5.png]]
208
209 [[image:image-20220610161353-6.png]]
210
211
212 [[image:image-20220610161353-7.png]]
213
214
215 You can also choose to create the device manually.
216
217 [[image:image-20220610161538-8.png]]
218
219
220
221 **Add APP KEY and DEV EUI**
222
223 [[image:image-20220610161538-9.png]]
224
225
226
227 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
228
229
230 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
231
232 [[image:image-20220610161724-10.png]]
233
234
235 (((
236 (% 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.
237 )))
238
239 [[image:1654849068701-275.png]]
240
241
242
243 == 2.3  ​Uplink Payload ==
244
245 (((
246 (((
247 LDDS75 will uplink payload via LoRaWAN with below payload format: 
248 )))
249
250 (((
251 Uplink payload includes in total 4 bytes.
252 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
253 )))
254 )))
255
256 (((
257
258 )))
259
260 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
261 |=(% style="width: 62.5px;" %)(((
262 **Size (bytes)**
263 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
264 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
265 [[Distance>>||anchor="H2.3.2A0Distance"]]
266
267 (unit: mm)
268 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
269 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
270 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
271
272 [[image:1654850511545-399.png]]
273
274
275
276 === 2.3.1  Battery Info ===
277
278
279 Check the battery voltage for LDDS75.
280
281 Ex1: 0x0B45 = 2885mV
282
283 Ex2: 0x0B49 = 2889mV
284
285
286
287 === 2.3.2  Distance ===
288
289 (((
290 Get the distance. Flat object range 280mm - 7500mm.
291 )))
292
293 (((
294 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.**
295 )))
296
297
298 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
299 * 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.
300
301
302
303 === 2.3.3  Interrupt Pin ===
304
305 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.
306
307 **Example:**
308
309 0x00: Normal uplink packet.
310
311 0x01: Interrupt Uplink Packet.
312
313
314
315 === 2.3.4  DS18B20 Temperature sensor ===
316
317 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
318
319 **Example**:
320
321 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
322
323 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
324
325 (% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
326
327
328
329 === 2.3.5  Sensor Flag ===
330
331 (((
332 0x01: Detect Ultrasonic Sensor
333 )))
334
335 (((
336 0x00: No Ultrasonic Sensor
337 )))
338
339
340
341 === 2.3.6  Decode payload in The Things Network ===
342
343 While using TTN network, you can add the payload format to decode the payload.
344
345
346 [[image:1654850829385-439.png]]
347
348 The payload decoder function for TTN V3 is here:
349
350 (((
351 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/]]
352 )))
353
354
355
356 == 2.4  Uplink Interval ==
357
358 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"]]
359
360
361
362 == 2.5  ​Show Data in DataCake IoT Server ==
363
364 (((
365 [[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:
366 )))
367
368 (((
369
370 )))
371
372 (((
373 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
374 )))
375
376 (((
377 (% 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:**
378 )))
379
380
381 [[image:1654592790040-760.png]]
382
383
384 [[image:1654592800389-571.png]]
385
386
387 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
388
389 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
390
391 [[image:1654851029373-510.png]]
392
393
394 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
395
396 [[image:image-20220610165129-11.png||height="595" width="1088"]]
397
398
399
400 == 2.6  Frequency Plans ==
401
402 (((
403 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.
404 )))
405
406
407
408 === 2.6.1  EU863-870 (EU868) ===
409
410 (((
411 (% style="color:blue" %)**Uplink:**
412 )))
413
414 (((
415 868.1 - SF7BW125 to SF12BW125
416 )))
417
418 (((
419 868.3 - SF7BW125 to SF12BW125 and SF7BW250
420 )))
421
422 (((
423 868.5 - SF7BW125 to SF12BW125
424 )))
425
426 (((
427 867.1 - SF7BW125 to SF12BW125
428 )))
429
430 (((
431 867.3 - SF7BW125 to SF12BW125
432 )))
433
434 (((
435 867.5 - SF7BW125 to SF12BW125
436 )))
437
438 (((
439 867.7 - SF7BW125 to SF12BW125
440 )))
441
442 (((
443 867.9 - SF7BW125 to SF12BW125
444 )))
445
446 (((
447 868.8 - FSK
448 )))
449
450 (((
451
452 )))
453
454 (((
455 (% style="color:blue" %)**Downlink:**
456 )))
457
458 (((
459 Uplink channels 1-9 (RX1)
460 )))
461
462 (((
463 869.525 - SF9BW125 (RX2 downlink only)
464 )))
465
466
467
468 === 2.6.2  US902-928(US915) ===
469
470 (((
471 Used in USA, Canada and South America. Default use CHE=2
472
473 (% style="color:blue" %)**Uplink:**
474
475 903.9 - SF7BW125 to SF10BW125
476
477 904.1 - SF7BW125 to SF10BW125
478
479 904.3 - SF7BW125 to SF10BW125
480
481 904.5 - SF7BW125 to SF10BW125
482
483 904.7 - SF7BW125 to SF10BW125
484
485 904.9 - SF7BW125 to SF10BW125
486
487 905.1 - SF7BW125 to SF10BW125
488
489 905.3 - SF7BW125 to SF10BW125
490
491
492 (% style="color:blue" %)**Downlink:**
493
494 923.3 - SF7BW500 to SF12BW500
495
496 923.9 - SF7BW500 to SF12BW500
497
498 924.5 - SF7BW500 to SF12BW500
499
500 925.1 - SF7BW500 to SF12BW500
501
502 925.7 - SF7BW500 to SF12BW500
503
504 926.3 - SF7BW500 to SF12BW500
505
506 926.9 - SF7BW500 to SF12BW500
507
508 927.5 - SF7BW500 to SF12BW500
509
510 923.3 - SF12BW500(RX2 downlink only)
511
512
513
514 )))
515
516 === 2.6.3  CN470-510 (CN470) ===
517
518 (((
519 Used in China, Default use CHE=1
520 )))
521
522 (((
523 (% style="color:blue" %)**Uplink:**
524 )))
525
526 (((
527 486.3 - SF7BW125 to SF12BW125
528 )))
529
530 (((
531 486.5 - SF7BW125 to SF12BW125
532 )))
533
534 (((
535 486.7 - SF7BW125 to SF12BW125
536 )))
537
538 (((
539 486.9 - SF7BW125 to SF12BW125
540 )))
541
542 (((
543 487.1 - SF7BW125 to SF12BW125
544 )))
545
546 (((
547 487.3 - SF7BW125 to SF12BW125
548 )))
549
550 (((
551 487.5 - SF7BW125 to SF12BW125
552 )))
553
554 (((
555 487.7 - SF7BW125 to SF12BW125
556 )))
557
558 (((
559
560 )))
561
562 (((
563 (% style="color:blue" %)**Downlink:**
564 )))
565
566 (((
567 506.7 - SF7BW125 to SF12BW125
568 )))
569
570 (((
571 506.9 - SF7BW125 to SF12BW125
572 )))
573
574 (((
575 507.1 - SF7BW125 to SF12BW125
576 )))
577
578 (((
579 507.3 - SF7BW125 to SF12BW125
580 )))
581
582 (((
583 507.5 - SF7BW125 to SF12BW125
584 )))
585
586 (((
587 507.7 - SF7BW125 to SF12BW125
588 )))
589
590 (((
591 507.9 - SF7BW125 to SF12BW125
592 )))
593
594 (((
595 508.1 - SF7BW125 to SF12BW125
596 )))
597
598 (((
599 505.3 - SF12BW125 (RX2 downlink only)
600 )))
601
602
603
604 === 2.6.4  AU915-928(AU915) ===
605
606 (((
607 Default use CHE=2
608
609 (% style="color:blue" %)**Uplink:**
610
611 916.8 - SF7BW125 to SF12BW125
612
613 917.0 - SF7BW125 to SF12BW125
614
615 917.2 - SF7BW125 to SF12BW125
616
617 917.4 - SF7BW125 to SF12BW125
618
619 917.6 - SF7BW125 to SF12BW125
620
621 917.8 - SF7BW125 to SF12BW125
622
623 918.0 - SF7BW125 to SF12BW125
624
625 918.2 - SF7BW125 to SF12BW125
626
627
628 (% style="color:blue" %)**Downlink:**
629
630 923.3 - SF7BW500 to SF12BW500
631
632 923.9 - SF7BW500 to SF12BW500
633
634 924.5 - SF7BW500 to SF12BW500
635
636 925.1 - SF7BW500 to SF12BW500
637
638 925.7 - SF7BW500 to SF12BW500
639
640 926.3 - SF7BW500 to SF12BW500
641
642 926.9 - SF7BW500 to SF12BW500
643
644 927.5 - SF7BW500 to SF12BW500
645
646 923.3 - SF12BW500(RX2 downlink only)
647
648
649
650 )))
651
652 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
653
654 (((
655 (% style="color:blue" %)**Default Uplink channel:**
656 )))
657
658 (((
659 923.2 - SF7BW125 to SF10BW125
660 )))
661
662 (((
663 923.4 - SF7BW125 to SF10BW125
664 )))
665
666 (((
667
668 )))
669
670 (((
671 (% style="color:blue" %)**Additional Uplink Channel**:
672 )))
673
674 (((
675 (OTAA mode, channel added by JoinAccept message)
676 )))
677
678 (((
679
680 )))
681
682 (((
683 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
684 )))
685
686 (((
687 922.2 - SF7BW125 to SF10BW125
688 )))
689
690 (((
691 922.4 - SF7BW125 to SF10BW125
692 )))
693
694 (((
695 922.6 - SF7BW125 to SF10BW125
696 )))
697
698 (((
699 922.8 - SF7BW125 to SF10BW125
700 )))
701
702 (((
703 923.0 - SF7BW125 to SF10BW125
704 )))
705
706 (((
707 922.0 - SF7BW125 to SF10BW125
708 )))
709
710 (((
711
712 )))
713
714 (((
715 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
716 )))
717
718 (((
719 923.6 - SF7BW125 to SF10BW125
720 )))
721
722 (((
723 923.8 - SF7BW125 to SF10BW125
724 )))
725
726 (((
727 924.0 - SF7BW125 to SF10BW125
728 )))
729
730 (((
731 924.2 - SF7BW125 to SF10BW125
732 )))
733
734 (((
735 924.4 - SF7BW125 to SF10BW125
736 )))
737
738 (((
739 924.6 - SF7BW125 to SF10BW125
740 )))
741
742 (((
743
744 )))
745
746 (((
747 (% style="color:blue" %)**Downlink:**
748 )))
749
750 (((
751 Uplink channels 1-8 (RX1)
752 )))
753
754 (((
755 923.2 - SF10BW125 (RX2)
756 )))
757
758
759
760 === 2.6.6  KR920-923 (KR920) ===
761
762 (((
763 (% style="color:blue" %)**Default channel:**
764 )))
765
766 (((
767 922.1 - SF7BW125 to SF12BW125
768 )))
769
770 (((
771 922.3 - SF7BW125 to SF12BW125
772 )))
773
774 (((
775 922.5 - SF7BW125 to SF12BW125
776 )))
777
778 (((
779
780 )))
781
782 (((
783 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
784 )))
785
786 (((
787 922.1 - SF7BW125 to SF12BW125
788 )))
789
790 (((
791 922.3 - SF7BW125 to SF12BW125
792 )))
793
794 (((
795 922.5 - SF7BW125 to SF12BW125
796 )))
797
798 (((
799 922.7 - SF7BW125 to SF12BW125
800 )))
801
802 (((
803 922.9 - SF7BW125 to SF12BW125
804 )))
805
806 (((
807 923.1 - SF7BW125 to SF12BW125
808 )))
809
810 (((
811 923.3 - SF7BW125 to SF12BW125
812 )))
813
814 (((
815
816 )))
817
818 (((
819 (% style="color:blue" %)**Downlink:**
820 )))
821
822 (((
823 Uplink channels 1-7(RX1)
824 )))
825
826 (((
827 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
828 )))
829
830
831
832 === 2.6.7  IN865-867 (IN865) ===
833
834 (((
835 (% style="color:blue" %)**Uplink:**
836 )))
837
838 (((
839 865.0625 - SF7BW125 to SF12BW125
840 )))
841
842 (((
843 865.4025 - SF7BW125 to SF12BW125
844 )))
845
846 (((
847 865.9850 - SF7BW125 to SF12BW125
848 )))
849
850 (((
851
852 )))
853
854 (((
855 (% style="color:blue" %)**Downlink:**
856 )))
857
858 (((
859 Uplink channels 1-3 (RX1)
860 )))
861
862 (((
863 866.550 - SF10BW125 (RX2)
864 )))
865
866
867
868 == 2.7  LED Indicator ==
869
870 The LDDS75 has an internal LED which is to show the status of different state.
871
872
873 * Blink once when device power on.
874 * The device detects the sensor and flashes 5 times.
875 * Solid ON for 5 seconds once device successful Join the network.
876 * Blink once when device transmit a packet.
877
878
879
880 == 2.8  ​Firmware Change Log ==
881
882
883 (((
884 **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/]]
885 )))
886
887 (((
888
889 )))
890
891 (((
892 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
893 )))
894
895
896
897 == 2.9  Mechanical ==
898
899
900 [[image:image-20220610172003-1.png]]
901
902
903 [[image:image-20220610172003-2.png]]
904
905
906
907 == 2.10  Battery Analysis ==
908
909 === 2.10.1  Battery Type ===
910
911 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.
912
913
914 The battery related documents as below:
915
916 * (((
917 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
918 )))
919 * (((
920 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
921 )))
922 * (((
923 [[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]]
924 )))
925
926 [[image:image-20220610172400-3.png]]
927
928
929
930 === 2.10.2  Replace the battery ===
931
932 (((
933 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.
934 )))
935
936 (((
937
938 )))
939
940 (((
941 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)
942 )))
943
944
945
946 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
947
948 (((
949 (((
950 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
951 )))
952 )))
953
954 * (((
955 (((
956 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
957 )))
958 )))
959 * (((
960 (((
961 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
962 )))
963 )))
964
965 (((
966 (((
967
968 )))
969
970 (((
971 There are two kinds of commands to configure LDDS75, they are:
972 )))
973 )))
974
975 * (((
976 (((
977 (% style="color:#4f81bd" %)** General Commands**.
978 )))
979 )))
980
981 (((
982 (((
983 These commands are to configure:
984 )))
985 )))
986
987 * (((
988 (((
989 General system settings like: uplink interval.
990 )))
991 )))
992 * (((
993 (((
994 LoRaWAN protocol & radio related command.
995 )))
996 )))
997
998 (((
999 (((
1000 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]]
1001 )))
1002 )))
1003
1004 (((
1005 (((
1006
1007 )))
1008 )))
1009
1010 * (((
1011 (((
1012 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1013 )))
1014 )))
1015
1016 (((
1017 (((
1018 These commands only valid for LDDS75, as below:
1019 )))
1020 )))
1021
1022
1023
1024 == 3.1  Access AT Commands ==
1025
1026 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.
1027
1028 [[image:image-20220610172924-4.png||height="483" width="988"]]
1029
1030
1031 Or if you have below board, use below connection:
1032
1033
1034 [[image:image-20220610172924-5.png]]
1035
1036
1037 (((
1038 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:
1039 )))
1040
1041
1042 [[image:image-20220610172924-6.png||height="601" width="860"]]
1043
1044
1045
1046 == 3.2  Set Transmit Interval Time ==
1047
1048 Feature: Change LoRaWAN End Node Transmit Interval.
1049
1050 (% style="color:#037691" %)**AT Command: AT+TDC**
1051
1052 [[image:image-20220610173409-7.png]]
1053
1054
1055 (((
1056 (% style="color:#037691" %)**Downlink Command: 0x01**
1057 )))
1058
1059 (((
1060 (((
1061 Format: Command Code (0x01) followed by 3 bytes time value.
1062
1063 (((
1064 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1065 )))
1066
1067 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1068 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1069 )))
1070 )))
1071
1072
1073
1074
1075
1076 == 3.3  Set Interrupt Mode ==
1077
1078 Feature, Set Interrupt mode for GPIO_EXIT.
1079
1080 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1081
1082 [[image:image-20220610174917-9.png]]
1083
1084
1085 (% style="color:#037691" %)**Downlink Command: 0x06**
1086
1087 Format: Command Code (0x06) followed by 3 bytes.
1088
1089 (((
1090 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1091 )))
1092
1093 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1094 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1095
1096
1097
1098 = 4.  FAQ =
1099
1100 == 4.1  What is the frequency plan for LDDS75? ==
1101
1102 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"]]
1103
1104
1105
1106 == 4.2  How to change the LoRa Frequency Bands/Region ==
1107
1108 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1109 When downloading the images, choose the required image file for download. ​
1110
1111
1112
1113 == 4.3  Can I use LDDS75 in condensation environment? ==
1114
1115 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1116
1117
1118
1119 = 5.  Trouble Shooting =
1120
1121 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1122
1123 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1124
1125
1126 == 5.2  AT Command input doesn't work ==
1127
1128 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.
1129
1130 (((
1131
1132 )))
1133
1134
1135 = 6.  Order Info =
1136
1137
1138 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1139
1140
1141 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1142
1143 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1144 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1145 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1146 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1147 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1148 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1149 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1150 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1151
1152 (% style="color:blue" %)**YY**(%%): Battery Option
1153
1154 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1155 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1156
1157
1158
1159 = 7. ​ Packing Info =
1160
1161
1162 **Package Includes**:
1163
1164 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1165
1166 **Dimension and weight**:
1167
1168 * Device Size: cm
1169 * Device Weight: g
1170 * Package Size / pcs : cm
1171 * Weight / pcs : g
1172
1173
1174
1175 = 8.  ​Support =
1176
1177 * 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.
1178 * 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]].