Version 159.2 by Xiaoling on 2023/01/29 13:45
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1 (% style="text-align:center" %)
2 [[image:1654846127817-788.png||_mstalt="299377"]]
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4
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6
7
8 **Table of Contents:**
9
10 {{toc/}}
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16
17
18
19 = 1.  Introduction =
20
21 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
22
23 (((
24
25
26 (((
27 (((
28 The Dragino LDDS75 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 LDDS75 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.
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 The LoRa wireless technology used in LDDS75 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.
37 )))
38
39 (((
40 LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
41 )))
42
43 (((
44 Each LDDS75 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.
45 )))
46
47 (((
48 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
49 )))
50 )))
51 )))
52
53
54 [[image:1654847051249-359.png||_mstalt="296920"]]
55
56
57 == ​1.2  Features ==
58
59
60 * LoRaWAN 1.0.3 Class A
61 * Ultra low power consumption
62 * Distance Detection by Ultrasonic technology
63 * Flat object range 280mm - 7500mm
64 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
65 * Cable Length : 25cm
66 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
67 * AT Commands to change parameters
68 * Uplink on periodically
69 * Downlink to change configure
70 * IP66 Waterproof Enclosure
71 * 4000mAh or 8500mAh Battery for long term use
72
73
74
75 == 1.3  Specification ==
76
77 === 1.3.1  Rated environmental conditions ===
78
79
80 [[image:image-20220610154839-1.png||_mstalt="431483"]]
81
82 (((
83 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
84
85 **~ 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)**
86 )))
87
88
89
90 === 1.3.2  Effective measurement range Reference beam pattern ===
91
92
93 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
94
95
96
97 [[image:1654852253176-749.png||_mstalt="297557"]]
98
99
100
101 (((
102 **(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.**
103 )))
104
105
106 [[image:1654852175653-550.png||_mstalt="295126"]](% style="display:none" %) ** **
107
108
109 == 1.4 ​ Applications ==
110
111
112 * Horizontal distance measurement
113 * Liquid level measurement
114 * Parking management system
115 * Object proximity and presence detection
116 * Intelligent trash can management system
117 * Robot obstacle avoidance
118 * Automatic control
119 * Sewer
120 * Bottom water level monitoring
121
122
123
124 == 1.5  Pin mapping and power on ==
125
126
127 [[image:1654847583902-256.png||_mstalt="296543"]]
128
129
130 = 2.  Configure LDDS75 to connect to LoRaWAN network =
131
132 == 2.1  How it works ==
133
134
135 (((
136 The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
137 )))
138
139 (((
140 In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
141 )))
142
143
144 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
145
146
147 (((
148 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.
149 )))
150
151 (((
152 [[image:1654848616367-242.png||_mstalt="295984"]]
153 )))
154
155 (((
156 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.
157 )))
158
159 (((
160
161
162 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
163 )))
164
165 (((
166 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
167 )))
168
169 [[image:image-20220607170145-1.jpeg||_mstalt="471042"]]
170
171
172 (((
173 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
174 )))
175
176 (((
177 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
178 )))
179
180 (((
181
182
183 **Add APP EUI in the application**
184 )))
185
186 [[image:image-20220610161353-4.png||_mstalt="429026"]]
187
188 [[image:image-20220610161353-5.png||_mstalt="429390"]]
189
190
191 [[image:image-20220610161353-6.png||_mstalt="429754"]]
192
193
194 [[image:image-20220610161353-7.png||_mstalt="430118"]]
195
196
197 You can also choose to create the device manually.
198
199 [[image:image-20220610161538-8.png||_mstalt="432146"]]
200
201
202
203 **Add APP KEY and DEV EUI**
204
205 [[image:image-20220610161538-9.png||_mstalt="432510"]]
206
207
208
209 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
210
211
212 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
213
214 [[image:image-20220610161724-10.png||_mstalt="451464"]]
215
216
217
218 (((
219 (% 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.
220 )))
221
222 [[image:1654849068701-275.png||_mstalt="296205"]]
223
224
225 == 2.3  ​Uplink Payload ==
226
227
228 (((
229 (((
230 LDDS75 will uplink payload via LoRaWAN with below payload format: 
231 )))
232
233 (((
234 Uplink payload includes in total 4 bytes.
235 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
236 )))
237 )))
238
239 (((
240
241 )))
242
243 (% border="1" cellspacing="5" style="background-color:#ffffcc; width:510px" %)
244 |=(% style="width: 62.5px;" %)(((
245 **Size(bytes)**
246 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
247 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
248 [[Distance>>||anchor="H2.3.2A0Distance"]]
249 (unit: mm)
250 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
251 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
252 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
253
254 [[image:1654850511545-399.png||_mstalt="296842"]]
255
256
257 === 2.3.1  Battery Info ===
258
259
260 Check the battery voltage for LDDS75.
261
262 Ex1: 0x0B45 = 2885mV
263
264 Ex2: 0x0B49 = 2889mV
265
266
267 === 2.3.2  Distance ===
268
269
270 (((
271 Get the distance. Flat object range 280mm - 7500mm.
272 )))
273
274 (((
275 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" %)** **
276
277 (% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
278 )))
279
280
281 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
282 * 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.
283
284
285
286 === 2.3.3  Interrupt Pin ===
287
288
289 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.
290
291 **Example:**
292
293 0x00: Normal uplink packet.
294
295 0x01: Interrupt Uplink Packet.
296
297
298 === 2.3.4  DS18B20 Temperature sensor ===
299
300
301 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
302
303 **Example**:
304
305 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
306
307 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
308
309 (% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.**
310
311
312 === 2.3.5  Sensor Flag ===
313
314
315 (((
316 0x01: Detect Ultrasonic Sensor
317 )))
318
319 (((
320 0x00: No Ultrasonic Sensor
321 )))
322
323
324 === 2.3.6  Decode payload in The Things Network ===
325
326
327 While using TTN network, you can add the payload format to decode the payload.
328
329
330 [[image:1654850829385-439.png||_mstalt="298298"]]
331
332 The payload decoder function for TTN V3 is here:
333
334 (((
335 LDDS75 TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
336 )))
337
338
339 == 2.4  Uplink Interval ==
340
341
342 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"]]
343
344
345 == 2.5  ​Show Data in DataCake IoT Server ==
346
347
348 (((
349 [[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:
350 )))
351
352 (((
353
354 )))
355
356 (((
357 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
358 )))
359
360 (((
361 (% 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:**
362 )))
363
364
365 [[image:1654592790040-760.png||_mstalt="294294"]]
366
367
368 [[image:1654592800389-571.png||_mstalt="296582"]]
369
370
371 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
372
373 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
374
375 [[image:1654851029373-510.png||_mstalt="293293"]]
376
377
378 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
379
380 [[image:image-20220610165129-11.png||_mstalt="452855" height="595" width="1088"]]
381
382
383 == 2.6  Frequency Plans ==
384
385
386 (((
387 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.
388 )))
389
390
391 === 2.6.1  EU863-870 (EU868) ===
392
393
394 (((
395 (% style="color:blue" %)**Uplink:**
396 )))
397
398 (((
399 868.1 - SF7BW125 to SF12BW125
400 )))
401
402 (((
403 868.3 - SF7BW125 to SF12BW125 and SF7BW250
404 )))
405
406 (((
407 868.5 - SF7BW125 to SF12BW125
408 )))
409
410 (((
411 867.1 - SF7BW125 to SF12BW125
412 )))
413
414 (((
415 867.3 - SF7BW125 to SF12BW125
416 )))
417
418 (((
419 867.5 - SF7BW125 to SF12BW125
420 )))
421
422 (((
423 867.7 - SF7BW125 to SF12BW125
424 )))
425
426 (((
427 867.9 - SF7BW125 to SF12BW125
428 )))
429
430 (((
431 868.8 - FSK
432 )))
433
434 (((
435
436 )))
437
438 (((
439 (% style="color:blue" %)**Downlink:**
440 )))
441
442 (((
443 Uplink channels 1-9 (RX1)
444 )))
445
446 (((
447 869.525 - SF9BW125 (RX2 downlink only)
448 )))
449
450
451 === 2.6.2  US902-928(US915) ===
452
453
454 (((
455 Used in USA, Canada and South America. Default use CHE=2
456
457 (% style="color:blue" %)**Uplink:**
458
459 903.9 - SF7BW125 to SF10BW125
460
461 904.1 - SF7BW125 to SF10BW125
462
463 904.3 - SF7BW125 to SF10BW125
464
465 904.5 - SF7BW125 to SF10BW125
466
467 904.7 - SF7BW125 to SF10BW125
468
469 904.9 - SF7BW125 to SF10BW125
470
471 905.1 - SF7BW125 to SF10BW125
472
473 905.3 - SF7BW125 to SF10BW125
474
475
476 (% style="color:blue" %)**Downlink:**
477
478 923.3 - SF7BW500 to SF12BW500
479
480 923.9 - SF7BW500 to SF12BW500
481
482 924.5 - SF7BW500 to SF12BW500
483
484 925.1 - SF7BW500 to SF12BW500
485
486 925.7 - SF7BW500 to SF12BW500
487
488 926.3 - SF7BW500 to SF12BW500
489
490 926.9 - SF7BW500 to SF12BW500
491
492 927.5 - SF7BW500 to SF12BW500
493
494 923.3 - SF12BW500(RX2 downlink only)
495
496
497 )))
498
499 === 2.6.3  CN470-510 (CN470) ===
500
501
502 (((
503 Used in China, Default use CHE=1
504 )))
505
506 (((
507 (% style="color:blue" %)**Uplink:**
508 )))
509
510 (((
511 486.3 - SF7BW125 to SF12BW125
512 )))
513
514 (((
515 486.5 - SF7BW125 to SF12BW125
516 )))
517
518 (((
519 486.7 - SF7BW125 to SF12BW125
520 )))
521
522 (((
523 486.9 - SF7BW125 to SF12BW125
524 )))
525
526 (((
527 487.1 - SF7BW125 to SF12BW125
528 )))
529
530 (((
531 487.3 - SF7BW125 to SF12BW125
532 )))
533
534 (((
535 487.5 - SF7BW125 to SF12BW125
536 )))
537
538 (((
539 487.7 - SF7BW125 to SF12BW125
540 )))
541
542 (((
543
544 )))
545
546 (((
547 (% style="color:blue" %)**Downlink:**
548 )))
549
550 (((
551 506.7 - SF7BW125 to SF12BW125
552 )))
553
554 (((
555 506.9 - SF7BW125 to SF12BW125
556 )))
557
558 (((
559 507.1 - SF7BW125 to SF12BW125
560 )))
561
562 (((
563 507.3 - SF7BW125 to SF12BW125
564 )))
565
566 (((
567 507.5 - SF7BW125 to SF12BW125
568 )))
569
570 (((
571 507.7 - SF7BW125 to SF12BW125
572 )))
573
574 (((
575 507.9 - SF7BW125 to SF12BW125
576 )))
577
578 (((
579 508.1 - SF7BW125 to SF12BW125
580 )))
581
582 (((
583 505.3 - SF12BW125 (RX2 downlink only)
584 )))
585
586
587 === 2.6.4  AU915-928(AU915) ===
588
589
590 (((
591 Default use CHE=2
592
593 (% style="color:blue" %)**Uplink:**
594
595 916.8 - SF7BW125 to SF12BW125
596
597 917.0 - SF7BW125 to SF12BW125
598
599 917.2 - SF7BW125 to SF12BW125
600
601 917.4 - SF7BW125 to SF12BW125
602
603 917.6 - SF7BW125 to SF12BW125
604
605 917.8 - SF7BW125 to SF12BW125
606
607 918.0 - SF7BW125 to SF12BW125
608
609 918.2 - SF7BW125 to SF12BW125
610
611
612 (% style="color:blue" %)**Downlink:**
613
614 923.3 - SF7BW500 to SF12BW500
615
616 923.9 - SF7BW500 to SF12BW500
617
618 924.5 - SF7BW500 to SF12BW500
619
620 925.1 - SF7BW500 to SF12BW500
621
622 925.7 - SF7BW500 to SF12BW500
623
624 926.3 - SF7BW500 to SF12BW500
625
626 926.9 - SF7BW500 to SF12BW500
627
628 927.5 - SF7BW500 to SF12BW500
629
630 923.3 - SF12BW500(RX2 downlink only)
631
632
633 )))
634
635 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
636
637
638 (((
639 (% style="color:blue" %)**Default Uplink channel:**
640 )))
641
642 (((
643 923.2 - SF7BW125 to SF10BW125
644 )))
645
646 (((
647 923.4 - SF7BW125 to SF10BW125
648 )))
649
650 (((
651
652 )))
653
654 (((
655 (% style="color:blue" %)**Additional Uplink Channel**:
656 )))
657
658 (((
659 (OTAA mode, channel added by JoinAccept message)
660 )))
661
662 (((
663
664 )))
665
666 (((
667 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
668 )))
669
670 (((
671 922.2 - SF7BW125 to SF10BW125
672 )))
673
674 (((
675 922.4 - SF7BW125 to SF10BW125
676 )))
677
678 (((
679 922.6 - SF7BW125 to SF10BW125
680 )))
681
682 (((
683 922.8 - SF7BW125 to SF10BW125
684 )))
685
686 (((
687 923.0 - SF7BW125 to SF10BW125
688 )))
689
690 (((
691 922.0 - SF7BW125 to SF10BW125
692 )))
693
694 (((
695
696 )))
697
698 (((
699 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
700 )))
701
702 (((
703 923.6 - SF7BW125 to SF10BW125
704 )))
705
706 (((
707 923.8 - SF7BW125 to SF10BW125
708 )))
709
710 (((
711 924.0 - SF7BW125 to SF10BW125
712 )))
713
714 (((
715 924.2 - SF7BW125 to SF10BW125
716 )))
717
718 (((
719 924.4 - SF7BW125 to SF10BW125
720 )))
721
722 (((
723 924.6 - SF7BW125 to SF10BW125
724 )))
725
726 (((
727
728 )))
729
730 (((
731 (% style="color:blue" %)**Downlink:**
732 )))
733
734 (((
735 Uplink channels 1-8 (RX1)
736 )))
737
738 (((
739 923.2 - SF10BW125 (RX2)
740 )))
741
742
743 === 2.6.6  KR920-923 (KR920) ===
744
745
746 (((
747 (% style="color:blue" %)**Default channel:**
748 )))
749
750 (((
751 922.1 - SF7BW125 to SF12BW125
752 )))
753
754 (((
755 922.3 - SF7BW125 to SF12BW125
756 )))
757
758 (((
759 922.5 - SF7BW125 to SF12BW125
760 )))
761
762 (((
763
764 )))
765
766 (((
767 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
768 )))
769
770 (((
771 922.1 - SF7BW125 to SF12BW125
772 )))
773
774 (((
775 922.3 - SF7BW125 to SF12BW125
776 )))
777
778 (((
779 922.5 - SF7BW125 to SF12BW125
780 )))
781
782 (((
783 922.7 - SF7BW125 to SF12BW125
784 )))
785
786 (((
787 922.9 - SF7BW125 to SF12BW125
788 )))
789
790 (((
791 923.1 - SF7BW125 to SF12BW125
792 )))
793
794 (((
795 923.3 - SF7BW125 to SF12BW125
796 )))
797
798 (((
799
800 )))
801
802 (((
803 (% style="color:blue" %)**Downlink:**
804 )))
805
806 (((
807 Uplink channels 1-7(RX1)
808 )))
809
810 (((
811 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
812 )))
813
814
815 === 2.6.7  IN865-867 (IN865) ===
816
817
818 (((
819 (% style="color:blue" %)**Uplink:**
820 )))
821
822 (((
823 865.0625 - SF7BW125 to SF12BW125
824 )))
825
826 (((
827 865.4025 - SF7BW125 to SF12BW125
828 )))
829
830 (((
831 865.9850 - SF7BW125 to SF12BW125
832 )))
833
834 (((
835
836 )))
837
838 (((
839 (% style="color:blue" %)**Downlink:**
840 )))
841
842 (((
843 Uplink channels 1-3 (RX1)
844 )))
845
846 (((
847 866.550 - SF10BW125 (RX2)
848 )))
849
850
851 == 2.7  LED Indicator ==
852
853
854 The LDDS75 has an internal LED which is to show the status of different state.
855
856
857 * Blink once when device power on.
858 * The device detects the sensor and flashes 5 times.
859 * Solid ON for 5 seconds once device successful Join the network.
860 * Blink once when device transmit a packet.
861
862
863
864 == 2.8  ​Firmware Change Log ==
865
866
867 (((
868 **Firmware download link:  **[[https:~~/~~/www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0>>https://www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0]]
869 )))
870
871 (((
872 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
873 )))
874
875
876 == 2.9  Mechanical ==
877
878
879 [[image:image-20220610172003-1.png||_mstalt="425958"]]
880
881
882 [[image:image-20220610172003-2.png||_mstalt="426322"]]
883
884
885 == 2.10  Battery Analysis ==
886
887 === 2.10.1  Battery Type ===
888
889
890 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.
891
892
893 The battery related documents as below:
894
895 * (((
896 [[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/]],
897 )))
898 * (((
899 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
900 )))
901 * (((
902 [[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/]], [[Tech Spec>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/]]
903 )))
904
905 [[image:image-20220610172400-3.png||_mstalt="426920"]]
906
907
908 === 2.10.2  Replace the battery ===
909
910
911 (((
912 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.
913 )))
914
915 (((
916
917 )))
918
919 (((
920 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)
921 )))
922
923
924 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
925
926
927 (((
928 (((
929 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
930 )))
931 )))
932
933 * (((
934 (((
935 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
936 )))
937 )))
938 * (((
939 (((
940 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
941 )))
942 )))
943
944 (((
945 (((
946
947 )))
948
949 (((
950 There are two kinds of commands to configure LDDS75, they are:
951 )))
952 )))
953
954 * (((
955 (((
956 (% style="color:#4f81bd" %)** General Commands**.
957 )))
958 )))
959
960 (((
961 (((
962 These commands are to configure:
963 )))
964 )))
965
966 * (((
967 (((
968 General system settings like: uplink interval.
969 )))
970 )))
971 * (((
972 (((
973 LoRaWAN protocol & radio related command.
974 )))
975 )))
976
977 (((
978 (((
979 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]]
980 )))
981 )))
982
983 (((
984 (((
985
986 )))
987 )))
988
989 * (((
990 (((
991 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
992 )))
993 )))
994
995 (((
996 (((
997 These commands only valid for LDDS75, as below:
998 )))
999 )))
1000
1001
1002 == 3.1  Access AT Commands ==
1003
1004
1005 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.
1006
1007
1008 [[image:image-20220610172924-4.png||_mstalt="430846" height="483" width="988"]]
1009
1010
1011 Or if you have below board, use below connection:
1012
1013
1014 [[image:image-20220610172924-5.png||_mstalt="431210"]]
1015
1016
1017
1018 (((
1019 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:
1020 )))
1021
1022
1023 [[image:image-20220610172924-6.png||_mstalt="6283212" height="601" width="860"]]
1024
1025
1026 == 3.2  Set Transmit Interval Time ==
1027
1028
1029 Feature: Change LoRaWAN End Node Transmit Interval.
1030
1031 (% style="color:#037691" %)**AT Command: AT+TDC**
1032
1033 [[image:image-20220610173409-7.png||_mstalt="6283355"]]
1034
1035
1036 (((
1037 (% style="color:#037691" %)**Downlink Command: 0x01**
1038 )))
1039
1040 (((
1041 (((
1042 Format: Command Code (0x01) followed by 3 bytes time value.
1043
1044 (((
1045 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1046 )))
1047
1048 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1049 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1050 )))
1051 )))
1052
1053
1054
1055 == 3.3  Set Interrupt Mode ==
1056
1057
1058 Feature, Set Interrupt mode for GPIO_EXIT.
1059
1060 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1061
1062 [[image:image-20220610174917-9.png||_mstalt="6285318"]]
1063
1064
1065 (% style="color:#037691" %)**Downlink Command: 0x06**
1066
1067 Format: Command Code (0x06) followed by 3 bytes.
1068
1069 (((
1070 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1071 )))
1072
1073 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1074 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1075
1076
1077
1078 = 4.  FAQ =
1079
1080 == 4.1  What is the frequency plan for LDDS75? ==
1081
1082
1083 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"]]
1084
1085
1086 == 4.2  How to change the LoRa Frequency Bands/Region ==
1087
1088
1089 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1090 When downloading the images, choose the required image file for download. ​
1091
1092
1093 == 4.3  Can I use LDDS75 in condensation environment? ==
1094
1095
1096 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1097
1098
1099 = 5.  Trouble Shooting =
1100
1101 == 5.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
1102
1103
1104 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1105
1106
1107 == 5.2  AT Command input doesn't work ==
1108
1109
1110 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.
1111
1112 (((
1113
1114
1115 == 5.3  Why does the sensor reading show 0 or "No sensor" ==
1116
1117
1118 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
1119
1120 2. Sensor wiring is disconnected
1121
1122 3. Not using the correct decoder
1123
1124
1125 == 5.4  Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
1126
1127
1128 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
1129
1130 2) Does it change with temperature, temperature will affect its measurement
1131
1132 3) If abnormal data occurs, you can turn on DEBUG mode
1133 Please use downlink or AT COMMAN to enter DEBUG mode
1134 downlink command: F1 01 AT command: **AT+DDEBUG=1**
1135
1136 4) After entering the debug mode, it will send 20 pieces of data at a time, and you can send its uplink to us for analysis
1137
1138 [[image:image-20230113135125-2.png||height="136" width="1057"]]
1139 )))
1140
1141 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data
1142
1143 Please send the data to us for check
1144
1145
1146 = 6.  Order Info =
1147
1148
1149 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1150
1151
1152 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1153
1154 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1155 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1156 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1157 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1158 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1159 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1160 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1161 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1162
1163 (% style="color:blue" %)**YY**(%%): Battery Option
1164
1165 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1166 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1167
1168
1169
1170 = 7. ​ Packing Info =
1171
1172
1173 **Package Includes**:
1174
1175 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1176
1177 **Dimension and weight**:
1178
1179 * Device Size: cm
1180 * Device Weight: g
1181 * Package Size / pcs : cm
1182 * Weight / pcs : g
1183
1184
1185
1186 = 8.  ​Support =
1187
1188
1189 * 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.
1190 * 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]].
1191
1192

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