Version 158.16 by Xiaoling on 2022/06/11 10:45
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1 (% style="text-align:center" %)
2 [[image:1654912614655-664.png||height="530" width="628"]]
3
4 **Contents:**
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12
13
14 = 1.  Introduction =
15
16 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
17
18 (((
19
20
21 (((
22 (((
23 The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
24 )))
25
26 (((
27
28 )))
29
30 (((
31 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
32 )))
33
34 (((
35
36 )))
37
38 (((
39 The LoRa wireless technology used in LDDS45 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
40 )))
41
42 (((
43
44 )))
45
46 (((
47 LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
48 )))
49
50 (((
51
52 )))
53
54 (((
55 Each LDDS45 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
56 )))
57
58 (((
59
60 )))
61
62 (((
63 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
64
65
66 )))
67 )))
68 )))
69
70 [[image:1654912858581-740.png]]
71
72
73
74
75 == ​1.2  Features ==
76
77 * LoRaWAN 1.0.3 Class A
78 * Ultra-low power consumption
79 * Distance Detection by Ultrasonic technology
80 * Flat object range 30mm - 4500mm
81 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
82 * Measure Angle: 60°
83 * Cable Length : 25cm
84 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
85 * AT Commands to change parameters
86 * Uplink on periodically
87 * Downlink to change configure
88 * IP66 Waterproof Enclosure
89 * 8500mAh Battery for long term use
90
91
92 == 1.3  Specification ==
93
94 === 1.3.1  Rated environmental conditions ===
95
96 [[image:image-20220610154839-1.png]]
97
98
99 (((
100 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
101
102 **~ 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)**
103 )))
104
105
106
107 === 1.3.2  Effective measurement range Reference beam pattern ===
108
109 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
110
111
112
113 [[image:1654852253176-749.png]]
114
115
116
117 (((
118 **(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.**
119 )))
120
121
122 [[image:1654852175653-550.png]](% style="display:none" %) ** **
123
124
125
126 == 1.5 ​ Applications ==
127
128 * Horizontal distance measurement
129 * Liquid level measurement
130 * Parking management system
131 * Object proximity and presence detection
132 * Intelligent trash can management system
133 * Robot obstacle avoidance
134 * Automatic control
135 * Sewer
136 * Bottom water level monitoring
137
138
139 == 1.6  Pin mapping and power on ==
140
141
142 [[image:1654847583902-256.png]]
143
144
145
146 = 2.  Configure LDDS45 to connect to LoRaWAN network =
147
148 == 2.1  How it works ==
149
150 (((
151 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
152 )))
153
154 (((
155 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.
156 )))
157
158
159
160 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
161
162 (((
163 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.
164
165
166 )))
167
168 [[image:1654913911773-521.png]]
169
170
171 (((
172
173 )))
174
175 (((
176 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.
177 )))
178
179 (((
180 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
181 )))
182
183 (((
184 Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
185 )))
186
187 [[image:image-20220607170145-1.jpeg]]
188
189
190 (((
191 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
192 )))
193
194 (((
195 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
196 )))
197
198 (((
199 **Add APP EUI in the application**
200 )))
201
202 [[image:image-20220610161353-4.png]]
203
204 [[image:image-20220610161353-5.png]]
205
206 [[image:image-20220610161353-6.png]]
207
208
209 [[image:image-20220610161353-7.png]]
210
211 **Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
212
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 LDDS45
228
229
230 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
231
232 [[image:image-20220611102908-2.png]]
233
234
235 (((
236 (% style="color:blue" %)**Step 3**(%%)**:** The LDDS45 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
237 )))
238
239 [[image:1654849068701-275.png]]
240
241
242
243 == 2.3  ​Uplink Payload ==
244
245 (((
246 (((
247 LDDS45 will uplink payload via LoRaWAN with below payload format: 
248
249 Uplink payload includes in total 8 bytes.
250 )))
251 )))
252
253 (((
254
255 )))
256
257 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
258 |=(% style="width: 62.5px;" %)(((
259 **Size (bytes)**
260 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
261 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
262 [[Distance>>||anchor="H2.3.2A0Distance"]]
263
264 (unit: mm)
265 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
266 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
267 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
268
269 [[image:1654850511545-399.png]]
270
271
272
273 === 2.3.1  Battery Info ===
274
275
276 Check the battery voltage for LDDS45.
277
278 Ex1: 0x0B45 = 2885mV
279
280 Ex2: 0x0B49 = 2889mV
281
282
283
284 === 2.3.2  Distance ===
285
286 (((
287 Get the distance. Flat object range 30mm - 4500mm.
288 )))
289
290 (((
291 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.**
292 )))
293
294
295 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
296 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
297
298
299 === 2.3.3  Interrupt Pin ===
300
301 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.3A0SetInterruptMode"]] for the hardware and software set up.
302
303 **Example:**
304
305 0x00: Normal uplink packet.
306
307 0x01: Interrupt Uplink Packet.
308
309
310
311 === 2.3.4  DS18B20 Temperature sensor ===
312
313 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
314
315 **Example**:
316
317 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
318
319 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
320
321
322
323 === 2.3.5  Sensor Flag ===
324
325 (((
326 0x01: Detect Ultrasonic Sensor
327 )))
328
329 (((
330 0x00: No Ultrasonic Sensor
331 )))
332
333
334
335 === 2.3.6  Decode payload in The Things Network ===
336
337 While using TTN network, you can add the payload format to decode the payload.
338
339
340 [[image:1654850829385-439.png]]
341
342 The payload decoder function for TTN V3 is here:
343
344 (((
345 LDDS45 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/]]
346 )))
347
348
349
350 == 2.4  Uplink Interval ==
351
352 The LDDS45 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"]]
353
354
355
356 == 2.5  ​Show Data in DataCake IoT Server ==
357
358 (((
359 [[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:
360 )))
361
362 (((
363
364 )))
365
366 (((
367 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
368 )))
369
370 (((
371 (% 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:**
372 )))
373
374
375 [[image:1654592790040-760.png]]
376
377
378 [[image:1654592800389-571.png]]
379
380
381 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
382
383 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
384
385 [[image:1654851029373-510.png]]
386
387
388 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
389
390 [[image:image-20220610165129-11.png||height="595" width="1088"]]
391
392
393
394 == 2.6  Frequency Plans ==
395
396 (((
397 The LDDS45 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.
398 )))
399
400
401
402 === 2.6.1  EU863-870 (EU868) ===
403
404 (((
405 (% style="color:blue" %)**Uplink:**
406 )))
407
408 (((
409 868.1 - SF7BW125 to SF12BW125
410 )))
411
412 (((
413 868.3 - SF7BW125 to SF12BW125 and SF7BW250
414 )))
415
416 (((
417 868.5 - SF7BW125 to SF12BW125
418 )))
419
420 (((
421 867.1 - SF7BW125 to SF12BW125
422 )))
423
424 (((
425 867.3 - SF7BW125 to SF12BW125
426 )))
427
428 (((
429 867.5 - SF7BW125 to SF12BW125
430 )))
431
432 (((
433 867.7 - SF7BW125 to SF12BW125
434 )))
435
436 (((
437 867.9 - SF7BW125 to SF12BW125
438 )))
439
440 (((
441 868.8 - FSK
442 )))
443
444 (((
445
446 )))
447
448 (((
449 (% style="color:blue" %)**Downlink:**
450 )))
451
452 (((
453 Uplink channels 1-9 (RX1)
454 )))
455
456 (((
457 869.525 - SF9BW125 (RX2 downlink only)
458 )))
459
460
461
462 === 2.6.2  US902-928(US915) ===
463
464 (((
465 Used in USA, Canada and South America. Default use CHE=2
466
467 (% style="color:blue" %)**Uplink:**
468
469 903.9 - SF7BW125 to SF10BW125
470
471 904.1 - SF7BW125 to SF10BW125
472
473 904.3 - SF7BW125 to SF10BW125
474
475 904.5 - SF7BW125 to SF10BW125
476
477 904.7 - SF7BW125 to SF10BW125
478
479 904.9 - SF7BW125 to SF10BW125
480
481 905.1 - SF7BW125 to SF10BW125
482
483 905.3 - SF7BW125 to SF10BW125
484
485
486 (% style="color:blue" %)**Downlink:**
487
488 923.3 - SF7BW500 to SF12BW500
489
490 923.9 - SF7BW500 to SF12BW500
491
492 924.5 - SF7BW500 to SF12BW500
493
494 925.1 - SF7BW500 to SF12BW500
495
496 925.7 - SF7BW500 to SF12BW500
497
498 926.3 - SF7BW500 to SF12BW500
499
500 926.9 - SF7BW500 to SF12BW500
501
502 927.5 - SF7BW500 to SF12BW500
503
504 923.3 - SF12BW500(RX2 downlink only)
505
506
507
508 )))
509
510 === 2.6.3  CN470-510 (CN470) ===
511
512 (((
513 Used in China, Default use CHE=1
514 )))
515
516 (((
517 (% style="color:blue" %)**Uplink:**
518 )))
519
520 (((
521 486.3 - SF7BW125 to SF12BW125
522 )))
523
524 (((
525 486.5 - SF7BW125 to SF12BW125
526 )))
527
528 (((
529 486.7 - SF7BW125 to SF12BW125
530 )))
531
532 (((
533 486.9 - SF7BW125 to SF12BW125
534 )))
535
536 (((
537 487.1 - SF7BW125 to SF12BW125
538 )))
539
540 (((
541 487.3 - SF7BW125 to SF12BW125
542 )))
543
544 (((
545 487.5 - SF7BW125 to SF12BW125
546 )))
547
548 (((
549 487.7 - SF7BW125 to SF12BW125
550 )))
551
552 (((
553
554 )))
555
556 (((
557 (% style="color:blue" %)**Downlink:**
558 )))
559
560 (((
561 506.7 - SF7BW125 to SF12BW125
562 )))
563
564 (((
565 506.9 - SF7BW125 to SF12BW125
566 )))
567
568 (((
569 507.1 - SF7BW125 to SF12BW125
570 )))
571
572 (((
573 507.3 - SF7BW125 to SF12BW125
574 )))
575
576 (((
577 507.5 - SF7BW125 to SF12BW125
578 )))
579
580 (((
581 507.7 - SF7BW125 to SF12BW125
582 )))
583
584 (((
585 507.9 - SF7BW125 to SF12BW125
586 )))
587
588 (((
589 508.1 - SF7BW125 to SF12BW125
590 )))
591
592 (((
593 505.3 - SF12BW125 (RX2 downlink only)
594 )))
595
596
597
598 === 2.6.4  AU915-928(AU915) ===
599
600 (((
601 Default use CHE=2
602
603 (% style="color:blue" %)**Uplink:**
604
605 916.8 - SF7BW125 to SF12BW125
606
607 917.0 - SF7BW125 to SF12BW125
608
609 917.2 - SF7BW125 to SF12BW125
610
611 917.4 - SF7BW125 to SF12BW125
612
613 917.6 - SF7BW125 to SF12BW125
614
615 917.8 - SF7BW125 to SF12BW125
616
617 918.0 - SF7BW125 to SF12BW125
618
619 918.2 - SF7BW125 to SF12BW125
620
621
622 (% style="color:blue" %)**Downlink:**
623
624 923.3 - SF7BW500 to SF12BW500
625
626 923.9 - SF7BW500 to SF12BW500
627
628 924.5 - SF7BW500 to SF12BW500
629
630 925.1 - SF7BW500 to SF12BW500
631
632 925.7 - SF7BW500 to SF12BW500
633
634 926.3 - SF7BW500 to SF12BW500
635
636 926.9 - SF7BW500 to SF12BW500
637
638 927.5 - SF7BW500 to SF12BW500
639
640 923.3 - SF12BW500(RX2 downlink only)
641
642
643
644 )))
645
646 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
647
648 (((
649 (% style="color:blue" %)**Default Uplink channel:**
650 )))
651
652 (((
653 923.2 - SF7BW125 to SF10BW125
654 )))
655
656 (((
657 923.4 - SF7BW125 to SF10BW125
658 )))
659
660 (((
661
662 )))
663
664 (((
665 (% style="color:blue" %)**Additional Uplink Channel**:
666 )))
667
668 (((
669 (OTAA mode, channel added by JoinAccept message)
670 )))
671
672 (((
673
674 )))
675
676 (((
677 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
678 )))
679
680 (((
681 922.2 - SF7BW125 to SF10BW125
682 )))
683
684 (((
685 922.4 - SF7BW125 to SF10BW125
686 )))
687
688 (((
689 922.6 - SF7BW125 to SF10BW125
690 )))
691
692 (((
693 922.8 - SF7BW125 to SF10BW125
694 )))
695
696 (((
697 923.0 - SF7BW125 to SF10BW125
698 )))
699
700 (((
701 922.0 - SF7BW125 to SF10BW125
702 )))
703
704 (((
705
706 )))
707
708 (((
709 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
710 )))
711
712 (((
713 923.6 - SF7BW125 to SF10BW125
714 )))
715
716 (((
717 923.8 - SF7BW125 to SF10BW125
718 )))
719
720 (((
721 924.0 - SF7BW125 to SF10BW125
722 )))
723
724 (((
725 924.2 - SF7BW125 to SF10BW125
726 )))
727
728 (((
729 924.4 - SF7BW125 to SF10BW125
730 )))
731
732 (((
733 924.6 - SF7BW125 to SF10BW125
734 )))
735
736 (((
737
738 )))
739
740 (((
741 (% style="color:blue" %)**Downlink:**
742 )))
743
744 (((
745 Uplink channels 1-8 (RX1)
746 )))
747
748 (((
749 923.2 - SF10BW125 (RX2)
750 )))
751
752
753
754 === 2.6.6  KR920-923 (KR920) ===
755
756 (((
757 (% style="color:blue" %)**Default channel:**
758 )))
759
760 (((
761 922.1 - SF7BW125 to SF12BW125
762 )))
763
764 (((
765 922.3 - SF7BW125 to SF12BW125
766 )))
767
768 (((
769 922.5 - SF7BW125 to SF12BW125
770 )))
771
772 (((
773
774 )))
775
776 (((
777 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
778 )))
779
780 (((
781 922.1 - SF7BW125 to SF12BW125
782 )))
783
784 (((
785 922.3 - SF7BW125 to SF12BW125
786 )))
787
788 (((
789 922.5 - SF7BW125 to SF12BW125
790 )))
791
792 (((
793 922.7 - SF7BW125 to SF12BW125
794 )))
795
796 (((
797 922.9 - SF7BW125 to SF12BW125
798 )))
799
800 (((
801 923.1 - SF7BW125 to SF12BW125
802 )))
803
804 (((
805 923.3 - SF7BW125 to SF12BW125
806 )))
807
808 (((
809
810 )))
811
812 (((
813 (% style="color:blue" %)**Downlink:**
814 )))
815
816 (((
817 Uplink channels 1-7(RX1)
818 )))
819
820 (((
821 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
822 )))
823
824
825
826 === 2.6.7  IN865-867 (IN865) ===
827
828 (((
829 (% style="color:blue" %)**Uplink:**
830 )))
831
832 (((
833 865.0625 - SF7BW125 to SF12BW125
834 )))
835
836 (((
837 865.4025 - SF7BW125 to SF12BW125
838 )))
839
840 (((
841 865.9850 - SF7BW125 to SF12BW125
842 )))
843
844 (((
845
846 )))
847
848 (((
849 (% style="color:blue" %)**Downlink:**
850 )))
851
852 (((
853 Uplink channels 1-3 (RX1)
854 )))
855
856 (((
857 866.550 - SF10BW125 (RX2)
858 )))
859
860
861
862 == 2.7  LED Indicator ==
863
864 The LDDS45 has an internal LED which is to show the status of different state.
865
866
867 * Blink once when device power on.
868 * The device detects the sensor and flashes 5 times.
869 * Solid ON for 5 seconds once device successful Join the network.
870 * Blink once when device transmit a packet.
871
872
873 == 2.8  ​Firmware Change Log ==
874
875
876 (((
877 **Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Firmware/]]
878 )))
879
880 (((
881
882 )))
883
884 (((
885 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
886 )))
887
888
889
890 == 2.9  Mechanical ==
891
892
893 [[image:image-20220610172003-1.png]]
894
895
896 [[image:image-20220610172003-2.png]]
897
898
899
900 == 2.10  Battery Analysis ==
901
902 === 2.10.1  Battery Type ===
903
904 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.
905
906
907 The battery related documents as below:
908
909 * (((
910 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
911 )))
912 * (((
913 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
914 )))
915 * (((
916 [[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]]
917 )))
918
919 [[image:image-20220610172400-3.png]]
920
921
922
923 === 2.10.2  Replace the battery ===
924
925 (((
926 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.
927 )))
928
929 (((
930
931 )))
932
933 (((
934 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)
935 )))
936
937
938
939 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
940
941 (((
942 (((
943 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
944 )))
945 )))
946
947 * (((
948 (((
949 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
950 )))
951 )))
952 * (((
953 (((
954 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
955 )))
956 )))
957
958 (((
959 (((
960
961 )))
962
963 (((
964 There are two kinds of commands to configure LDDS75, they are:
965 )))
966 )))
967
968 * (((
969 (((
970 (% style="color:#4f81bd" %)** General Commands**.
971 )))
972 )))
973
974 (((
975 (((
976 These commands are to configure:
977 )))
978 )))
979
980 * (((
981 (((
982 General system settings like: uplink interval.
983 )))
984 )))
985 * (((
986 (((
987 LoRaWAN protocol & radio related command.
988 )))
989 )))
990
991 (((
992 (((
993 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]]
994 )))
995 )))
996
997 (((
998 (((
999
1000 )))
1001 )))
1002
1003 * (((
1004 (((
1005 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1006 )))
1007 )))
1008
1009 (((
1010 (((
1011 These commands only valid for LDDS75, as below:
1012 )))
1013 )))
1014
1015
1016
1017 == 3.1  Access AT Commands ==
1018
1019 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.
1020
1021 [[image:image-20220610172924-4.png||height="483" width="988"]]
1022
1023
1024 Or if you have below board, use below connection:
1025
1026
1027 [[image:image-20220610172924-5.png]]
1028
1029
1030 (((
1031 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:
1032 )))
1033
1034
1035 [[image:image-20220610172924-6.png||height="601" width="860"]]
1036
1037
1038
1039 == 3.2  Set Transmit Interval Time ==
1040
1041 Feature: Change LoRaWAN End Node Transmit Interval.
1042
1043 (% style="color:#037691" %)**AT Command: AT+TDC**
1044
1045 [[image:image-20220610173409-7.png]]
1046
1047
1048 (((
1049 (% style="color:#037691" %)**Downlink Command: 0x01**
1050 )))
1051
1052 (((
1053 (((
1054 Format: Command Code (0x01) followed by 3 bytes time value.
1055
1056 (((
1057 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1058 )))
1059
1060 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1061 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1062 )))
1063 )))
1064
1065
1066
1067
1068
1069 == 3.3  Set Interrupt Mode ==
1070
1071 Feature, Set Interrupt mode for GPIO_EXIT.
1072
1073 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1074
1075 [[image:image-20220610174917-9.png]]
1076
1077
1078 (% style="color:#037691" %)**Downlink Command: 0x06**
1079
1080 Format: Command Code (0x06) followed by 3 bytes.
1081
1082 (((
1083 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1084 )))
1085
1086 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1087 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088
1089
1090 = 4.  FAQ =
1091
1092 == 4.1  What is the frequency plan for LDDS75? ==
1093
1094 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"]]
1095
1096
1097
1098 == 4.2  How to change the LoRa Frequency Bands/Region ==
1099
1100 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1101 When downloading the images, choose the required image file for download. ​
1102
1103
1104
1105 == 4.3  Can I use LDDS75 in condensation environment? ==
1106
1107 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1108
1109
1110
1111 = 5.  Trouble Shooting =
1112
1113 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1114
1115 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1116
1117
1118 == 5.2  AT Command input doesn't work ==
1119
1120 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.
1121
1122 (((
1123
1124 )))
1125
1126
1127 = 6.  Order Info =
1128
1129
1130 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1131
1132
1133 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1134
1135 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1136 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1137 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1138 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1139 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1140 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1141 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1142 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1143
1144 (% style="color:blue" %)**YY**(%%): Battery Option
1145
1146 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1147 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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 = 8.  ​Support =
1166
1167 * 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.
1168 * 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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