Version 154.6 by Xiaoling on 2022/06/11 10:14
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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 [[image:1654848616367-242.png]]
171 )))
172
173 (((
174 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.
175 )))
176
177 (((
178 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
179 )))
180
181 (((
182 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
183 )))
184
185 [[image:image-20220607170145-1.jpeg]]
186
187
188 (((
189 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
190 )))
191
192 (((
193 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
194 )))
195
196 (((
197 **Add APP EUI in the application**
198 )))
199
200 [[image:image-20220610161353-4.png]]
201
202 [[image:image-20220610161353-5.png]]
203
204 [[image:image-20220610161353-6.png]]
205
206
207 [[image:image-20220610161353-7.png]]
208
209
210 You can also choose to create the device manually.
211
212 [[image:image-20220610161538-8.png]]
213
214
215
216 **Add APP KEY and DEV EUI**
217
218 [[image:image-20220610161538-9.png]]
219
220
221
222 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
223
224
225 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
226
227 [[image:image-20220610161724-10.png]]
228
229
230 (((
231 (% 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.
232 )))
233
234 [[image:1654849068701-275.png]]
235
236
237
238 == 2.3  ​Uplink Payload ==
239
240 (((
241 (((
242 LDDS75 will uplink payload via LoRaWAN with below payload format: 
243 )))
244
245 (((
246 Uplink payload includes in total 4 bytes.
247 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
248 )))
249 )))
250
251 (((
252
253 )))
254
255 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
256 |=(% style="width: 62.5px;" %)(((
257 **Size (bytes)**
258 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
259 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
260 [[Distance>>||anchor="H2.3.2A0Distance"]]
261
262 (unit: mm)
263 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
264 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
265 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
266
267 [[image:1654850511545-399.png]]
268
269
270
271 === 2.3.1  Battery Info ===
272
273
274 Check the battery voltage for LDDS75.
275
276 Ex1: 0x0B45 = 2885mV
277
278 Ex2: 0x0B49 = 2889mV
279
280
281
282 === 2.3.2  Distance ===
283
284 (((
285 Get the distance. Flat object range 280mm - 7500mm.
286 )))
287
288 (((
289 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.**
290 )))
291
292
293 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
294 * 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.
295
296
297
298 === 2.3.3  Interrupt Pin ===
299
300 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.
301
302 **Example:**
303
304 0x00: Normal uplink packet.
305
306 0x01: Interrupt Uplink Packet.
307
308
309
310 === 2.3.4  DS18B20 Temperature sensor ===
311
312 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
313
314 **Example**:
315
316 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
317
318 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
319
320 (% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
321
322
323
324 === 2.3.5  Sensor Flag ===
325
326 (((
327 0x01: Detect Ultrasonic Sensor
328 )))
329
330 (((
331 0x00: No Ultrasonic Sensor
332 )))
333
334
335
336 === 2.3.6  Decode payload in The Things Network ===
337
338 While using TTN network, you can add the payload format to decode the payload.
339
340
341 [[image:1654850829385-439.png]]
342
343 The payload decoder function for TTN V3 is here:
344
345 (((
346 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/]]
347 )))
348
349
350
351 == 2.4  Uplink Interval ==
352
353 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"]]
354
355
356
357 == 2.5  ​Show Data in DataCake IoT Server ==
358
359 (((
360 [[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:
361 )))
362
363 (((
364
365 )))
366
367 (((
368 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
369 )))
370
371 (((
372 (% 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:**
373 )))
374
375
376 [[image:1654592790040-760.png]]
377
378
379 [[image:1654592800389-571.png]]
380
381
382 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
383
384 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
385
386 [[image:1654851029373-510.png]]
387
388
389 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
390
391 [[image:image-20220610165129-11.png||height="595" width="1088"]]
392
393
394
395 == 2.6  Frequency Plans ==
396
397 (((
398 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.
399 )))
400
401
402
403 === 2.6.1  EU863-870 (EU868) ===
404
405 (((
406 (% style="color:blue" %)**Uplink:**
407 )))
408
409 (((
410 868.1 - SF7BW125 to SF12BW125
411 )))
412
413 (((
414 868.3 - SF7BW125 to SF12BW125 and SF7BW250
415 )))
416
417 (((
418 868.5 - SF7BW125 to SF12BW125
419 )))
420
421 (((
422 867.1 - SF7BW125 to SF12BW125
423 )))
424
425 (((
426 867.3 - SF7BW125 to SF12BW125
427 )))
428
429 (((
430 867.5 - SF7BW125 to SF12BW125
431 )))
432
433 (((
434 867.7 - SF7BW125 to SF12BW125
435 )))
436
437 (((
438 867.9 - SF7BW125 to SF12BW125
439 )))
440
441 (((
442 868.8 - FSK
443 )))
444
445 (((
446
447 )))
448
449 (((
450 (% style="color:blue" %)**Downlink:**
451 )))
452
453 (((
454 Uplink channels 1-9 (RX1)
455 )))
456
457 (((
458 869.525 - SF9BW125 (RX2 downlink only)
459 )))
460
461
462
463 === 2.6.2  US902-928(US915) ===
464
465 (((
466 Used in USA, Canada and South America. Default use CHE=2
467
468 (% style="color:blue" %)**Uplink:**
469
470 903.9 - SF7BW125 to SF10BW125
471
472 904.1 - SF7BW125 to SF10BW125
473
474 904.3 - SF7BW125 to SF10BW125
475
476 904.5 - SF7BW125 to SF10BW125
477
478 904.7 - SF7BW125 to SF10BW125
479
480 904.9 - SF7BW125 to SF10BW125
481
482 905.1 - SF7BW125 to SF10BW125
483
484 905.3 - SF7BW125 to SF10BW125
485
486
487 (% style="color:blue" %)**Downlink:**
488
489 923.3 - SF7BW500 to SF12BW500
490
491 923.9 - SF7BW500 to SF12BW500
492
493 924.5 - SF7BW500 to SF12BW500
494
495 925.1 - SF7BW500 to SF12BW500
496
497 925.7 - SF7BW500 to SF12BW500
498
499 926.3 - SF7BW500 to SF12BW500
500
501 926.9 - SF7BW500 to SF12BW500
502
503 927.5 - SF7BW500 to SF12BW500
504
505 923.3 - SF12BW500(RX2 downlink only)
506
507
508
509 )))
510
511 === 2.6.3  CN470-510 (CN470) ===
512
513 (((
514 Used in China, Default use CHE=1
515 )))
516
517 (((
518 (% style="color:blue" %)**Uplink:**
519 )))
520
521 (((
522 486.3 - SF7BW125 to SF12BW125
523 )))
524
525 (((
526 486.5 - SF7BW125 to SF12BW125
527 )))
528
529 (((
530 486.7 - SF7BW125 to SF12BW125
531 )))
532
533 (((
534 486.9 - SF7BW125 to SF12BW125
535 )))
536
537 (((
538 487.1 - SF7BW125 to SF12BW125
539 )))
540
541 (((
542 487.3 - SF7BW125 to SF12BW125
543 )))
544
545 (((
546 487.5 - SF7BW125 to SF12BW125
547 )))
548
549 (((
550 487.7 - SF7BW125 to SF12BW125
551 )))
552
553 (((
554
555 )))
556
557 (((
558 (% style="color:blue" %)**Downlink:**
559 )))
560
561 (((
562 506.7 - SF7BW125 to SF12BW125
563 )))
564
565 (((
566 506.9 - SF7BW125 to SF12BW125
567 )))
568
569 (((
570 507.1 - SF7BW125 to SF12BW125
571 )))
572
573 (((
574 507.3 - SF7BW125 to SF12BW125
575 )))
576
577 (((
578 507.5 - SF7BW125 to SF12BW125
579 )))
580
581 (((
582 507.7 - SF7BW125 to SF12BW125
583 )))
584
585 (((
586 507.9 - SF7BW125 to SF12BW125
587 )))
588
589 (((
590 508.1 - SF7BW125 to SF12BW125
591 )))
592
593 (((
594 505.3 - SF12BW125 (RX2 downlink only)
595 )))
596
597
598
599 === 2.6.4  AU915-928(AU915) ===
600
601 (((
602 Default use CHE=2
603
604 (% style="color:blue" %)**Uplink:**
605
606 916.8 - SF7BW125 to SF12BW125
607
608 917.0 - SF7BW125 to SF12BW125
609
610 917.2 - SF7BW125 to SF12BW125
611
612 917.4 - SF7BW125 to SF12BW125
613
614 917.6 - SF7BW125 to SF12BW125
615
616 917.8 - SF7BW125 to SF12BW125
617
618 918.0 - SF7BW125 to SF12BW125
619
620 918.2 - SF7BW125 to SF12BW125
621
622
623 (% style="color:blue" %)**Downlink:**
624
625 923.3 - SF7BW500 to SF12BW500
626
627 923.9 - SF7BW500 to SF12BW500
628
629 924.5 - SF7BW500 to SF12BW500
630
631 925.1 - SF7BW500 to SF12BW500
632
633 925.7 - SF7BW500 to SF12BW500
634
635 926.3 - SF7BW500 to SF12BW500
636
637 926.9 - SF7BW500 to SF12BW500
638
639 927.5 - SF7BW500 to SF12BW500
640
641 923.3 - SF12BW500(RX2 downlink only)
642
643
644
645 )))
646
647 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
648
649 (((
650 (% style="color:blue" %)**Default Uplink channel:**
651 )))
652
653 (((
654 923.2 - SF7BW125 to SF10BW125
655 )))
656
657 (((
658 923.4 - SF7BW125 to SF10BW125
659 )))
660
661 (((
662
663 )))
664
665 (((
666 (% style="color:blue" %)**Additional Uplink Channel**:
667 )))
668
669 (((
670 (OTAA mode, channel added by JoinAccept message)
671 )))
672
673 (((
674
675 )))
676
677 (((
678 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
679 )))
680
681 (((
682 922.2 - SF7BW125 to SF10BW125
683 )))
684
685 (((
686 922.4 - SF7BW125 to SF10BW125
687 )))
688
689 (((
690 922.6 - SF7BW125 to SF10BW125
691 )))
692
693 (((
694 922.8 - SF7BW125 to SF10BW125
695 )))
696
697 (((
698 923.0 - SF7BW125 to SF10BW125
699 )))
700
701 (((
702 922.0 - SF7BW125 to SF10BW125
703 )))
704
705 (((
706
707 )))
708
709 (((
710 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
711 )))
712
713 (((
714 923.6 - SF7BW125 to SF10BW125
715 )))
716
717 (((
718 923.8 - SF7BW125 to SF10BW125
719 )))
720
721 (((
722 924.0 - SF7BW125 to SF10BW125
723 )))
724
725 (((
726 924.2 - SF7BW125 to SF10BW125
727 )))
728
729 (((
730 924.4 - SF7BW125 to SF10BW125
731 )))
732
733 (((
734 924.6 - SF7BW125 to SF10BW125
735 )))
736
737 (((
738
739 )))
740
741 (((
742 (% style="color:blue" %)**Downlink:**
743 )))
744
745 (((
746 Uplink channels 1-8 (RX1)
747 )))
748
749 (((
750 923.2 - SF10BW125 (RX2)
751 )))
752
753
754
755 === 2.6.6  KR920-923 (KR920) ===
756
757 (((
758 (% style="color:blue" %)**Default channel:**
759 )))
760
761 (((
762 922.1 - SF7BW125 to SF12BW125
763 )))
764
765 (((
766 922.3 - SF7BW125 to SF12BW125
767 )))
768
769 (((
770 922.5 - SF7BW125 to SF12BW125
771 )))
772
773 (((
774
775 )))
776
777 (((
778 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
779 )))
780
781 (((
782 922.1 - SF7BW125 to SF12BW125
783 )))
784
785 (((
786 922.3 - SF7BW125 to SF12BW125
787 )))
788
789 (((
790 922.5 - SF7BW125 to SF12BW125
791 )))
792
793 (((
794 922.7 - SF7BW125 to SF12BW125
795 )))
796
797 (((
798 922.9 - SF7BW125 to SF12BW125
799 )))
800
801 (((
802 923.1 - SF7BW125 to SF12BW125
803 )))
804
805 (((
806 923.3 - SF7BW125 to SF12BW125
807 )))
808
809 (((
810
811 )))
812
813 (((
814 (% style="color:blue" %)**Downlink:**
815 )))
816
817 (((
818 Uplink channels 1-7(RX1)
819 )))
820
821 (((
822 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
823 )))
824
825
826
827 === 2.6.7  IN865-867 (IN865) ===
828
829 (((
830 (% style="color:blue" %)**Uplink:**
831 )))
832
833 (((
834 865.0625 - SF7BW125 to SF12BW125
835 )))
836
837 (((
838 865.4025 - SF7BW125 to SF12BW125
839 )))
840
841 (((
842 865.9850 - SF7BW125 to SF12BW125
843 )))
844
845 (((
846
847 )))
848
849 (((
850 (% style="color:blue" %)**Downlink:**
851 )))
852
853 (((
854 Uplink channels 1-3 (RX1)
855 )))
856
857 (((
858 866.550 - SF10BW125 (RX2)
859 )))
860
861
862
863 == 2.7  LED Indicator ==
864
865 The LDDS75 has an internal LED which is to show the status of different state.
866
867
868 * Blink once when device power on.
869 * The device detects the sensor and flashes 5 times.
870 * Solid ON for 5 seconds once device successful Join the network.
871 * Blink once when device transmit a packet.
872
873
874
875 == 2.8  ​Firmware Change Log ==
876
877
878 (((
879 **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/]]
880 )))
881
882 (((
883
884 )))
885
886 (((
887 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
888 )))
889
890
891
892 == 2.9  Mechanical ==
893
894
895 [[image:image-20220610172003-1.png]]
896
897
898 [[image:image-20220610172003-2.png]]
899
900
901
902 == 2.10  Battery Analysis ==
903
904 === 2.10.1  Battery Type ===
905
906 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.
907
908
909 The battery related documents as below:
910
911 * (((
912 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
913 )))
914 * (((
915 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
916 )))
917 * (((
918 [[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]]
919 )))
920
921 [[image:image-20220610172400-3.png]]
922
923
924
925 === 2.10.2  Replace the battery ===
926
927 (((
928 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.
929 )))
930
931 (((
932
933 )))
934
935 (((
936 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)
937 )))
938
939
940
941 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
942
943 (((
944 (((
945 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
946 )))
947 )))
948
949 * (((
950 (((
951 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
952 )))
953 )))
954 * (((
955 (((
956 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
957 )))
958 )))
959
960 (((
961 (((
962
963 )))
964
965 (((
966 There are two kinds of commands to configure LDDS75, they are:
967 )))
968 )))
969
970 * (((
971 (((
972 (% style="color:#4f81bd" %)** General Commands**.
973 )))
974 )))
975
976 (((
977 (((
978 These commands are to configure:
979 )))
980 )))
981
982 * (((
983 (((
984 General system settings like: uplink interval.
985 )))
986 )))
987 * (((
988 (((
989 LoRaWAN protocol & radio related command.
990 )))
991 )))
992
993 (((
994 (((
995 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]]
996 )))
997 )))
998
999 (((
1000 (((
1001
1002 )))
1003 )))
1004
1005 * (((
1006 (((
1007 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1008 )))
1009 )))
1010
1011 (((
1012 (((
1013 These commands only valid for LDDS75, as below:
1014 )))
1015 )))
1016
1017
1018
1019 == 3.1  Access AT Commands ==
1020
1021 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.
1022
1023 [[image:image-20220610172924-4.png||height="483" width="988"]]
1024
1025
1026 Or if you have below board, use below connection:
1027
1028
1029 [[image:image-20220610172924-5.png]]
1030
1031
1032 (((
1033 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:
1034 )))
1035
1036
1037 [[image:image-20220610172924-6.png||height="601" width="860"]]
1038
1039
1040
1041 == 3.2  Set Transmit Interval Time ==
1042
1043 Feature: Change LoRaWAN End Node Transmit Interval.
1044
1045 (% style="color:#037691" %)**AT Command: AT+TDC**
1046
1047 [[image:image-20220610173409-7.png]]
1048
1049
1050 (((
1051 (% style="color:#037691" %)**Downlink Command: 0x01**
1052 )))
1053
1054 (((
1055 (((
1056 Format: Command Code (0x01) followed by 3 bytes time value.
1057
1058 (((
1059 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1060 )))
1061
1062 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1063 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1064 )))
1065 )))
1066
1067
1068
1069
1070
1071 == 3.3  Set Interrupt Mode ==
1072
1073 Feature, Set Interrupt mode for GPIO_EXIT.
1074
1075 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1076
1077 [[image:image-20220610174917-9.png]]
1078
1079
1080 (% style="color:#037691" %)**Downlink Command: 0x06**
1081
1082 Format: Command Code (0x06) followed by 3 bytes.
1083
1084 (((
1085 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1086 )))
1087
1088 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1089 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1090
1091
1092
1093 = 4.  FAQ =
1094
1095 == 4.1  What is the frequency plan for LDDS75? ==
1096
1097 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"]]
1098
1099
1100
1101 == 4.2  How to change the LoRa Frequency Bands/Region ==
1102
1103 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1104 When downloading the images, choose the required image file for download. ​
1105
1106
1107
1108 == 4.3  Can I use LDDS75 in condensation environment? ==
1109
1110 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1111
1112
1113
1114 = 5.  Trouble Shooting =
1115
1116 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1117
1118 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1119
1120
1121 == 5.2  AT Command input doesn't work ==
1122
1123 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.
1124
1125 (((
1126
1127 )))
1128
1129
1130 = 6.  Order Info =
1131
1132
1133 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1134
1135
1136 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1137
1138 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1139 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1140 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1141 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1142 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1143 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1144 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1145 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1146
1147 (% style="color:blue" %)**YY**(%%): Battery Option
1148
1149 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1150 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1151
1152
1153
1154 = 7. ​ Packing Info =
1155
1156
1157 **Package Includes**:
1158
1159 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1160
1161 **Dimension and weight**:
1162
1163 * Device Size: cm
1164 * Device Weight: g
1165 * Package Size / pcs : cm
1166 * Weight / pcs : g
1167
1168
1169
1170 = 8.  ​Support =
1171
1172 * 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.
1173 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

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