Version 156.1 by Xiaoling on 2022/06/11 10:26
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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
11
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 **Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
215
216
217
218 You can also choose to create the device manually.
219
220 [[image:image-20220610161538-8.png]]
221
222
223
224 **Add APP KEY and DEV EUI**
225
226 [[image:image-20220610161538-9.png]]
227
228
229
230 (% style="color:blue" %)**Step 2**(%%): Power on LDDS45
231
232
233 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
234
235 [[image:image-20220610161724-10.png]]
236
237
238 (((
239 (% 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.
240 )))
241
242 [[image:1654849068701-275.png]]
243
244
245
246 == 2.3  ​Uplink Payload ==
247
248 (((
249 (((
250 LDDS75 will uplink payload via LoRaWAN with below payload format: 
251 )))
252
253 (((
254 Uplink payload includes in total 4 bytes.
255 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
256 )))
257 )))
258
259 (((
260
261 )))
262
263 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
264 |=(% style="width: 62.5px;" %)(((
265 **Size (bytes)**
266 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
267 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
268 [[Distance>>||anchor="H2.3.2A0Distance"]]
269
270 (unit: mm)
271 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
272 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
273 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
274
275 [[image:1654850511545-399.png]]
276
277
278
279 === 2.3.1  Battery Info ===
280
281
282 Check the battery voltage for LDDS75.
283
284 Ex1: 0x0B45 = 2885mV
285
286 Ex2: 0x0B49 = 2889mV
287
288
289
290 === 2.3.2  Distance ===
291
292 (((
293 Get the distance. Flat object range 280mm - 7500mm.
294 )))
295
296 (((
297 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.**
298 )))
299
300
301 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
302 * 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.
303
304
305
306 === 2.3.3  Interrupt Pin ===
307
308 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.
309
310 **Example:**
311
312 0x00: Normal uplink packet.
313
314 0x01: Interrupt Uplink Packet.
315
316
317
318 === 2.3.4  DS18B20 Temperature sensor ===
319
320 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
321
322 **Example**:
323
324 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
325
326 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
327
328 (% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
329
330
331
332 === 2.3.5  Sensor Flag ===
333
334 (((
335 0x01: Detect Ultrasonic Sensor
336 )))
337
338 (((
339 0x00: No Ultrasonic Sensor
340 )))
341
342
343
344 === 2.3.6  Decode payload in The Things Network ===
345
346 While using TTN network, you can add the payload format to decode the payload.
347
348
349 [[image:1654850829385-439.png]]
350
351 The payload decoder function for TTN V3 is here:
352
353 (((
354 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/]]
355 )))
356
357
358
359 == 2.4  Uplink Interval ==
360
361 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"]]
362
363
364
365 == 2.5  ​Show Data in DataCake IoT Server ==
366
367 (((
368 [[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:
369 )))
370
371 (((
372
373 )))
374
375 (((
376 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
377 )))
378
379 (((
380 (% 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:**
381 )))
382
383
384 [[image:1654592790040-760.png]]
385
386
387 [[image:1654592800389-571.png]]
388
389
390 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
391
392 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
393
394 [[image:1654851029373-510.png]]
395
396
397 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
398
399 [[image:image-20220610165129-11.png||height="595" width="1088"]]
400
401
402
403 == 2.6  Frequency Plans ==
404
405 (((
406 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.
407 )))
408
409
410
411 === 2.6.1  EU863-870 (EU868) ===
412
413 (((
414 (% style="color:blue" %)**Uplink:**
415 )))
416
417 (((
418 868.1 - SF7BW125 to SF12BW125
419 )))
420
421 (((
422 868.3 - SF7BW125 to SF12BW125 and SF7BW250
423 )))
424
425 (((
426 868.5 - SF7BW125 to SF12BW125
427 )))
428
429 (((
430 867.1 - SF7BW125 to SF12BW125
431 )))
432
433 (((
434 867.3 - SF7BW125 to SF12BW125
435 )))
436
437 (((
438 867.5 - SF7BW125 to SF12BW125
439 )))
440
441 (((
442 867.7 - SF7BW125 to SF12BW125
443 )))
444
445 (((
446 867.9 - SF7BW125 to SF12BW125
447 )))
448
449 (((
450 868.8 - FSK
451 )))
452
453 (((
454
455 )))
456
457 (((
458 (% style="color:blue" %)**Downlink:**
459 )))
460
461 (((
462 Uplink channels 1-9 (RX1)
463 )))
464
465 (((
466 869.525 - SF9BW125 (RX2 downlink only)
467 )))
468
469
470
471 === 2.6.2  US902-928(US915) ===
472
473 (((
474 Used in USA, Canada and South America. Default use CHE=2
475
476 (% style="color:blue" %)**Uplink:**
477
478 903.9 - SF7BW125 to SF10BW125
479
480 904.1 - SF7BW125 to SF10BW125
481
482 904.3 - SF7BW125 to SF10BW125
483
484 904.5 - SF7BW125 to SF10BW125
485
486 904.7 - SF7BW125 to SF10BW125
487
488 904.9 - SF7BW125 to SF10BW125
489
490 905.1 - SF7BW125 to SF10BW125
491
492 905.3 - SF7BW125 to SF10BW125
493
494
495 (% style="color:blue" %)**Downlink:**
496
497 923.3 - SF7BW500 to SF12BW500
498
499 923.9 - SF7BW500 to SF12BW500
500
501 924.5 - SF7BW500 to SF12BW500
502
503 925.1 - SF7BW500 to SF12BW500
504
505 925.7 - SF7BW500 to SF12BW500
506
507 926.3 - SF7BW500 to SF12BW500
508
509 926.9 - SF7BW500 to SF12BW500
510
511 927.5 - SF7BW500 to SF12BW500
512
513 923.3 - SF12BW500(RX2 downlink only)
514
515
516
517 )))
518
519 === 2.6.3  CN470-510 (CN470) ===
520
521 (((
522 Used in China, Default use CHE=1
523 )))
524
525 (((
526 (% style="color:blue" %)**Uplink:**
527 )))
528
529 (((
530 486.3 - SF7BW125 to SF12BW125
531 )))
532
533 (((
534 486.5 - SF7BW125 to SF12BW125
535 )))
536
537 (((
538 486.7 - SF7BW125 to SF12BW125
539 )))
540
541 (((
542 486.9 - SF7BW125 to SF12BW125
543 )))
544
545 (((
546 487.1 - SF7BW125 to SF12BW125
547 )))
548
549 (((
550 487.3 - SF7BW125 to SF12BW125
551 )))
552
553 (((
554 487.5 - SF7BW125 to SF12BW125
555 )))
556
557 (((
558 487.7 - SF7BW125 to SF12BW125
559 )))
560
561 (((
562
563 )))
564
565 (((
566 (% style="color:blue" %)**Downlink:**
567 )))
568
569 (((
570 506.7 - SF7BW125 to SF12BW125
571 )))
572
573 (((
574 506.9 - SF7BW125 to SF12BW125
575 )))
576
577 (((
578 507.1 - SF7BW125 to SF12BW125
579 )))
580
581 (((
582 507.3 - SF7BW125 to SF12BW125
583 )))
584
585 (((
586 507.5 - SF7BW125 to SF12BW125
587 )))
588
589 (((
590 507.7 - SF7BW125 to SF12BW125
591 )))
592
593 (((
594 507.9 - SF7BW125 to SF12BW125
595 )))
596
597 (((
598 508.1 - SF7BW125 to SF12BW125
599 )))
600
601 (((
602 505.3 - SF12BW125 (RX2 downlink only)
603 )))
604
605
606
607 === 2.6.4  AU915-928(AU915) ===
608
609 (((
610 Default use CHE=2
611
612 (% style="color:blue" %)**Uplink:**
613
614 916.8 - SF7BW125 to SF12BW125
615
616 917.0 - SF7BW125 to SF12BW125
617
618 917.2 - SF7BW125 to SF12BW125
619
620 917.4 - SF7BW125 to SF12BW125
621
622 917.6 - SF7BW125 to SF12BW125
623
624 917.8 - SF7BW125 to SF12BW125
625
626 918.0 - SF7BW125 to SF12BW125
627
628 918.2 - SF7BW125 to SF12BW125
629
630
631 (% style="color:blue" %)**Downlink:**
632
633 923.3 - SF7BW500 to SF12BW500
634
635 923.9 - SF7BW500 to SF12BW500
636
637 924.5 - SF7BW500 to SF12BW500
638
639 925.1 - SF7BW500 to SF12BW500
640
641 925.7 - SF7BW500 to SF12BW500
642
643 926.3 - SF7BW500 to SF12BW500
644
645 926.9 - SF7BW500 to SF12BW500
646
647 927.5 - SF7BW500 to SF12BW500
648
649 923.3 - SF12BW500(RX2 downlink only)
650
651
652
653 )))
654
655 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
656
657 (((
658 (% style="color:blue" %)**Default Uplink channel:**
659 )))
660
661 (((
662 923.2 - SF7BW125 to SF10BW125
663 )))
664
665 (((
666 923.4 - SF7BW125 to SF10BW125
667 )))
668
669 (((
670
671 )))
672
673 (((
674 (% style="color:blue" %)**Additional Uplink Channel**:
675 )))
676
677 (((
678 (OTAA mode, channel added by JoinAccept message)
679 )))
680
681 (((
682
683 )))
684
685 (((
686 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
687 )))
688
689 (((
690 922.2 - SF7BW125 to SF10BW125
691 )))
692
693 (((
694 922.4 - SF7BW125 to SF10BW125
695 )))
696
697 (((
698 922.6 - SF7BW125 to SF10BW125
699 )))
700
701 (((
702 922.8 - SF7BW125 to SF10BW125
703 )))
704
705 (((
706 923.0 - SF7BW125 to SF10BW125
707 )))
708
709 (((
710 922.0 - SF7BW125 to SF10BW125
711 )))
712
713 (((
714
715 )))
716
717 (((
718 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
719 )))
720
721 (((
722 923.6 - SF7BW125 to SF10BW125
723 )))
724
725 (((
726 923.8 - SF7BW125 to SF10BW125
727 )))
728
729 (((
730 924.0 - SF7BW125 to SF10BW125
731 )))
732
733 (((
734 924.2 - SF7BW125 to SF10BW125
735 )))
736
737 (((
738 924.4 - SF7BW125 to SF10BW125
739 )))
740
741 (((
742 924.6 - SF7BW125 to SF10BW125
743 )))
744
745 (((
746
747 )))
748
749 (((
750 (% style="color:blue" %)**Downlink:**
751 )))
752
753 (((
754 Uplink channels 1-8 (RX1)
755 )))
756
757 (((
758 923.2 - SF10BW125 (RX2)
759 )))
760
761
762
763 === 2.6.6  KR920-923 (KR920) ===
764
765 (((
766 (% style="color:blue" %)**Default channel:**
767 )))
768
769 (((
770 922.1 - SF7BW125 to SF12BW125
771 )))
772
773 (((
774 922.3 - SF7BW125 to SF12BW125
775 )))
776
777 (((
778 922.5 - SF7BW125 to SF12BW125
779 )))
780
781 (((
782
783 )))
784
785 (((
786 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
787 )))
788
789 (((
790 922.1 - SF7BW125 to SF12BW125
791 )))
792
793 (((
794 922.3 - SF7BW125 to SF12BW125
795 )))
796
797 (((
798 922.5 - SF7BW125 to SF12BW125
799 )))
800
801 (((
802 922.7 - SF7BW125 to SF12BW125
803 )))
804
805 (((
806 922.9 - SF7BW125 to SF12BW125
807 )))
808
809 (((
810 923.1 - SF7BW125 to SF12BW125
811 )))
812
813 (((
814 923.3 - SF7BW125 to SF12BW125
815 )))
816
817 (((
818
819 )))
820
821 (((
822 (% style="color:blue" %)**Downlink:**
823 )))
824
825 (((
826 Uplink channels 1-7(RX1)
827 )))
828
829 (((
830 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
831 )))
832
833
834
835 === 2.6.7  IN865-867 (IN865) ===
836
837 (((
838 (% style="color:blue" %)**Uplink:**
839 )))
840
841 (((
842 865.0625 - SF7BW125 to SF12BW125
843 )))
844
845 (((
846 865.4025 - SF7BW125 to SF12BW125
847 )))
848
849 (((
850 865.9850 - SF7BW125 to SF12BW125
851 )))
852
853 (((
854
855 )))
856
857 (((
858 (% style="color:blue" %)**Downlink:**
859 )))
860
861 (((
862 Uplink channels 1-3 (RX1)
863 )))
864
865 (((
866 866.550 - SF10BW125 (RX2)
867 )))
868
869
870
871 == 2.7  LED Indicator ==
872
873 The LDDS75 has an internal LED which is to show the status of different state.
874
875
876 * Blink once when device power on.
877 * The device detects the sensor and flashes 5 times.
878 * Solid ON for 5 seconds once device successful Join the network.
879 * Blink once when device transmit a packet.
880
881
882
883 == 2.8  ​Firmware Change Log ==
884
885
886 (((
887 **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/]]
888 )))
889
890 (((
891
892 )))
893
894 (((
895 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
896 )))
897
898
899
900 == 2.9  Mechanical ==
901
902
903 [[image:image-20220610172003-1.png]]
904
905
906 [[image:image-20220610172003-2.png]]
907
908
909
910 == 2.10  Battery Analysis ==
911
912 === 2.10.1  Battery Type ===
913
914 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.
915
916
917 The battery related documents as below:
918
919 * (((
920 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
921 )))
922 * (((
923 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
924 )))
925 * (((
926 [[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]]
927 )))
928
929 [[image:image-20220610172400-3.png]]
930
931
932
933 === 2.10.2  Replace the battery ===
934
935 (((
936 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.
937 )))
938
939 (((
940
941 )))
942
943 (((
944 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)
945 )))
946
947
948
949 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
950
951 (((
952 (((
953 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
954 )))
955 )))
956
957 * (((
958 (((
959 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
960 )))
961 )))
962 * (((
963 (((
964 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
965 )))
966 )))
967
968 (((
969 (((
970
971 )))
972
973 (((
974 There are two kinds of commands to configure LDDS75, they are:
975 )))
976 )))
977
978 * (((
979 (((
980 (% style="color:#4f81bd" %)** General Commands**.
981 )))
982 )))
983
984 (((
985 (((
986 These commands are to configure:
987 )))
988 )))
989
990 * (((
991 (((
992 General system settings like: uplink interval.
993 )))
994 )))
995 * (((
996 (((
997 LoRaWAN protocol & radio related command.
998 )))
999 )))
1000
1001 (((
1002 (((
1003 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]]
1004 )))
1005 )))
1006
1007 (((
1008 (((
1009
1010 )))
1011 )))
1012
1013 * (((
1014 (((
1015 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1016 )))
1017 )))
1018
1019 (((
1020 (((
1021 These commands only valid for LDDS75, as below:
1022 )))
1023 )))
1024
1025
1026
1027 == 3.1  Access AT Commands ==
1028
1029 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.
1030
1031 [[image:image-20220610172924-4.png||height="483" width="988"]]
1032
1033
1034 Or if you have below board, use below connection:
1035
1036
1037 [[image:image-20220610172924-5.png]]
1038
1039
1040 (((
1041 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:
1042 )))
1043
1044
1045 [[image:image-20220610172924-6.png||height="601" width="860"]]
1046
1047
1048
1049 == 3.2  Set Transmit Interval Time ==
1050
1051 Feature: Change LoRaWAN End Node Transmit Interval.
1052
1053 (% style="color:#037691" %)**AT Command: AT+TDC**
1054
1055 [[image:image-20220610173409-7.png]]
1056
1057
1058 (((
1059 (% style="color:#037691" %)**Downlink Command: 0x01**
1060 )))
1061
1062 (((
1063 (((
1064 Format: Command Code (0x01) followed by 3 bytes time value.
1065
1066 (((
1067 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1068 )))
1069
1070 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1071 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1072 )))
1073 )))
1074
1075
1076
1077
1078
1079 == 3.3  Set Interrupt Mode ==
1080
1081 Feature, Set Interrupt mode for GPIO_EXIT.
1082
1083 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1084
1085 [[image:image-20220610174917-9.png]]
1086
1087
1088 (% style="color:#037691" %)**Downlink Command: 0x06**
1089
1090 Format: Command Code (0x06) followed by 3 bytes.
1091
1092 (((
1093 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1094 )))
1095
1096 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1097 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1098
1099
1100
1101 = 4.  FAQ =
1102
1103 == 4.1  What is the frequency plan for LDDS75? ==
1104
1105 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"]]
1106
1107
1108
1109 == 4.2  How to change the LoRa Frequency Bands/Region ==
1110
1111 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1112 When downloading the images, choose the required image file for download. ​
1113
1114
1115
1116 == 4.3  Can I use LDDS75 in condensation environment? ==
1117
1118 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1119
1120
1121
1122 = 5.  Trouble Shooting =
1123
1124 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1125
1126 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1127
1128
1129 == 5.2  AT Command input doesn't work ==
1130
1131 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.
1132
1133 (((
1134
1135 )))
1136
1137
1138 = 6.  Order Info =
1139
1140
1141 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1142
1143
1144 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1145
1146 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1147 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1148 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1149 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1150 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1151 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1152 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1153 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1154
1155 (% style="color:blue" %)**YY**(%%): Battery Option
1156
1157 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1158 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1159
1160
1161
1162 = 7. ​ Packing Info =
1163
1164
1165 **Package Includes**:
1166
1167 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1168
1169 **Dimension and weight**:
1170
1171 * Device Size: cm
1172 * Device Weight: g
1173 * Package Size / pcs : cm
1174 * Weight / pcs : g
1175
1176
1177
1178 = 8.  ​Support =
1179
1180 * 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.
1181 * 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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