Last modified by Xiaoling on 2024/01/19 17:41
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1 (% style="text-align:center" %)
2 [[image:1654846127817-788.png||_mstalt="299377"]]
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6
7
8 **Table of Contents:**
9
10 {{toc/}}
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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 == 1.3  Specification ==
74
75 === 1.3.1  Rated environmental conditions ===
76
77
78 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
79 |(% style="background-color:#4f81bd; color:white; width:163px" %)**Item**|(% style="background-color:#4f81bd; color:white; width:90px" %)(((
80 **Minimum value**
81 )))|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
82 **Typical value**
83 )))|(% style="background-color:#4f81bd; color:white; width:87px" %)(((
84 **Maximum value**
85 )))|(% style="background-color:#4f81bd; color:white; width:40px" %)**Unit**|(% style="background-color:#4f81bd; color:white; width:50px" %)**Remarks**
86 |(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
87 |(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
88 |(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
89 |(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
90
91
92
93 )))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
94
95 (((
96 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
97
98 **~ 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)**
99 )))
100
101
102
103 === 1.3.2  Effective measurement range Reference beam pattern ===
104
105
106 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
107
108
109
110 [[image:1654852253176-749.png||_mstalt="297557"]]
111
112
113
114 (((
115 **(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.**
116 )))
117
118
119 [[image:1654852175653-550.png||_mstalt="295126"]](% style="display:none" %) ** **
120
121
122 == 1.4 ​ Applications ==
123
124
125 * Horizontal distance measurement
126 * Liquid level measurement
127 * Parking management system
128 * Object proximity and presence detection
129 * Intelligent trash can management system
130 * Robot obstacle avoidance
131 * Automatic control
132 * Sewer
133 * Bottom water level monitoring
134
135 == 1.5  Pin mapping and power on ==
136
137
138 [[image:1654847583902-256.png||_mstalt="296543"]]
139
140
141 = 2.  Configure LDDS75 to connect to LoRaWAN network =
142
143 == 2.1  How it works ==
144
145
146 (((
147 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
148 )))
149
150 (((
151 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.
152 )))
153
154
155 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
156
157
158 (((
159 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.
160 )))
161
162 (((
163 [[image:1654848616367-242.png||_mstalt="295984"]]
164 )))
165
166 (((
167 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.
168 )))
169
170 (((
171
172
173 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
174 )))
175
176 (((
177 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
178 )))
179
180 [[image:image-20230426085452-1.png||height="254" width="547"]]
181
182
183 (((
184 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
185 )))
186
187 (((
188 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
189 )))
190
191 (((
192
193
194 **Add APP EUI in the application**
195 )))
196
197 [[image:image-20220610161353-4.png||_mstalt="429026"]]
198
199 [[image:image-20220610161353-5.png||_mstalt="429390"]]
200
201
202 [[image:image-20220610161353-6.png||_mstalt="429754"]]
203
204
205 [[image:image-20220610161353-7.png||_mstalt="430118"]]
206
207
208 You can also choose to create the device manually.
209
210 [[image:image-20220610161538-8.png||_mstalt="432146"]]
211
212
213
214 **Add APP KEY and DEV EUI**
215
216 [[image:image-20220610161538-9.png||_mstalt="432510"]]
217
218
219
220 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
221
222
223 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
224
225 [[image:image-20220610161724-10.png||_mstalt="451464"]]
226
227
228
229 (((
230 (% 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.
231 )))
232
233 [[image:1654849068701-275.png||_mstalt="296205"]]
234
235
236 == 2.3  ​Uplink Payload ==
237
238
239 (((
240 (((
241 LDDS75 will uplink payload via LoRaWAN with below payload format: 
242 )))
243
244 (((
245 Uplink payload includes in total 4 bytes.
246 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
247 )))
248 )))
249
250 (((
251
252 )))
253
254 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
255 |=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)(((
256 **Size(bytes)**
257 )))|=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white" %)1|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)**1**
258 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
259 [[Distance>>||anchor="H2.3.2A0Distance"]]
260 (unit: mm)
261 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
262 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
263 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
264
265 [[image:1654850511545-399.png||_mstalt="296842"]]
266
267
268 === 2.3.1  Battery Info ===
269
270
271 Check the battery voltage for LDDS75.
272
273 Ex1: 0x0B45 = 2885mV
274
275 Ex2: 0x0B49 = 2889mV
276
277
278 === 2.3.2  Distance ===
279
280
281 (((
282 Get the distance. Flat object range 280mm - 7500mm.
283 )))
284
285 (((
286 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" %)** **
287
288 (% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
289 )))
290
291
292 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
293 * 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.
294
295 === 2.3.3  Interrupt Pin ===
296
297
298 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.
299
300 **Example:**
301
302 0x00: Normal uplink packet.
303
304 0x01: Interrupt Uplink Packet.
305
306
307 === 2.3.4  DS18B20 Temperature sensor ===
308
309
310 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
311
312 **Example**:
313
314 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
315
316 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
317
318 (% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.**
319
320
321 === 2.3.5  Sensor Flag ===
322
323
324 (((
325 0x01: Detect Ultrasonic Sensor
326 )))
327
328 (((
329 0x00: No Ultrasonic Sensor
330 )))
331
332
333 === 2.3.6  Decode payload in The Things Network ===
334
335
336 While using TTN network, you can add the payload format to decode the payload.
337
338
339 [[image:1654850829385-439.png||_mstalt="298298"]]
340
341 The payload decoder function for TTN V3 is here:
342
343 (((
344 LDDS75 TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
345 )))
346
347
348 == 2.4  Uplink Interval ==
349
350
351 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"]]
352
353
354 == 2.5  ​Show Data in DataCake IoT Server ==
355
356
357 (((
358 [[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:
359 )))
360
361 (((
362
363 )))
364
365 (((
366 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
367 )))
368
369 (((
370 (% 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:**
371 )))
372
373
374 [[image:1654592790040-760.png||_mstalt="294294"]]
375
376
377 [[image:1654592800389-571.png||_mstalt="296582"]]
378
379
380 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
381
382 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
383
384 [[image:1654851029373-510.png||_mstalt="293293"]]
385
386
387 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
388
389 [[image:image-20220610165129-11.png||_mstalt="452855" height="595" width="1088"]]
390
391
392 == 2.6  Frequency Plans ==
393
394
395 (((
396 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.
397 )))
398
399
400 === 2.6.1  EU863-870 (EU868) ===
401
402
403 (((
404 (% style="color:blue" %)**Uplink:**
405 )))
406
407 (((
408 868.1 - SF7BW125 to SF12BW125
409 )))
410
411 (((
412 868.3 - SF7BW125 to SF12BW125 and SF7BW250
413 )))
414
415 (((
416 868.5 - SF7BW125 to SF12BW125
417 )))
418
419 (((
420 867.1 - SF7BW125 to SF12BW125
421 )))
422
423 (((
424 867.3 - SF7BW125 to SF12BW125
425 )))
426
427 (((
428 867.5 - SF7BW125 to SF12BW125
429 )))
430
431 (((
432 867.7 - SF7BW125 to SF12BW125
433 )))
434
435 (((
436 867.9 - SF7BW125 to SF12BW125
437 )))
438
439 (((
440 868.8 - FSK
441 )))
442
443 (((
444
445 )))
446
447 (((
448 (% style="color:blue" %)**Downlink:**
449 )))
450
451 (((
452 Uplink channels 1-9 (RX1)
453 )))
454
455 (((
456 869.525 - SF9BW125 (RX2 downlink only)
457 )))
458
459
460 === 2.6.2  US902-928(US915) ===
461
462
463 (((
464 Used in USA, Canada and South America. Default use CHE=2
465
466 (% style="color:blue" %)**Uplink:**
467
468 903.9 - SF7BW125 to SF10BW125
469
470 904.1 - SF7BW125 to SF10BW125
471
472 904.3 - SF7BW125 to SF10BW125
473
474 904.5 - SF7BW125 to SF10BW125
475
476 904.7 - SF7BW125 to SF10BW125
477
478 904.9 - SF7BW125 to SF10BW125
479
480 905.1 - SF7BW125 to SF10BW125
481
482 905.3 - SF7BW125 to SF10BW125
483
484
485 (% style="color:blue" %)**Downlink:**
486
487 923.3 - SF7BW500 to SF12BW500
488
489 923.9 - SF7BW500 to SF12BW500
490
491 924.5 - SF7BW500 to SF12BW500
492
493 925.1 - SF7BW500 to SF12BW500
494
495 925.7 - SF7BW500 to SF12BW500
496
497 926.3 - SF7BW500 to SF12BW500
498
499 926.9 - SF7BW500 to SF12BW500
500
501 927.5 - SF7BW500 to SF12BW500
502
503 923.3 - SF12BW500(RX2 downlink only)
504
505
506 )))
507
508 === 2.6.3  CN470-510 (CN470) ===
509
510
511 (((
512 Used in China, Default use CHE=1
513 )))
514
515 (((
516 (% style="color:blue" %)**Uplink:**
517 )))
518
519 (((
520 486.3 - SF7BW125 to SF12BW125
521 )))
522
523 (((
524 486.5 - SF7BW125 to SF12BW125
525 )))
526
527 (((
528 486.7 - SF7BW125 to SF12BW125
529 )))
530
531 (((
532 486.9 - SF7BW125 to SF12BW125
533 )))
534
535 (((
536 487.1 - SF7BW125 to SF12BW125
537 )))
538
539 (((
540 487.3 - SF7BW125 to SF12BW125
541 )))
542
543 (((
544 487.5 - SF7BW125 to SF12BW125
545 )))
546
547 (((
548 487.7 - SF7BW125 to SF12BW125
549 )))
550
551 (((
552
553 )))
554
555 (((
556 (% style="color:blue" %)**Downlink:**
557 )))
558
559 (((
560 506.7 - SF7BW125 to SF12BW125
561 )))
562
563 (((
564 506.9 - SF7BW125 to SF12BW125
565 )))
566
567 (((
568 507.1 - SF7BW125 to SF12BW125
569 )))
570
571 (((
572 507.3 - SF7BW125 to SF12BW125
573 )))
574
575 (((
576 507.5 - SF7BW125 to SF12BW125
577 )))
578
579 (((
580 507.7 - SF7BW125 to SF12BW125
581 )))
582
583 (((
584 507.9 - SF7BW125 to SF12BW125
585 )))
586
587 (((
588 508.1 - SF7BW125 to SF12BW125
589 )))
590
591 (((
592 505.3 - SF12BW125 (RX2 downlink only)
593 )))
594
595
596 === 2.6.4  AU915-928(AU915) ===
597
598
599 (((
600 Default use CHE=2
601
602 (% style="color:blue" %)**Uplink:**
603
604 916.8 - SF7BW125 to SF12BW125
605
606 917.0 - SF7BW125 to SF12BW125
607
608 917.2 - SF7BW125 to SF12BW125
609
610 917.4 - SF7BW125 to SF12BW125
611
612 917.6 - SF7BW125 to SF12BW125
613
614 917.8 - SF7BW125 to SF12BW125
615
616 918.0 - SF7BW125 to SF12BW125
617
618 918.2 - SF7BW125 to SF12BW125
619
620
621 (% style="color:blue" %)**Downlink:**
622
623 923.3 - SF7BW500 to SF12BW500
624
625 923.9 - SF7BW500 to SF12BW500
626
627 924.5 - SF7BW500 to SF12BW500
628
629 925.1 - SF7BW500 to SF12BW500
630
631 925.7 - SF7BW500 to SF12BW500
632
633 926.3 - SF7BW500 to SF12BW500
634
635 926.9 - SF7BW500 to SF12BW500
636
637 927.5 - SF7BW500 to SF12BW500
638
639 923.3 - SF12BW500(RX2 downlink only)
640
641
642 )))
643
644 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
645
646
647 (((
648 (% style="color:blue" %)**Default Uplink channel:**
649 )))
650
651 (((
652 923.2 - SF7BW125 to SF10BW125
653 )))
654
655 (((
656 923.4 - SF7BW125 to SF10BW125
657 )))
658
659 (((
660
661 )))
662
663 (((
664 (% style="color:blue" %)**Additional Uplink Channel**:
665 )))
666
667 (((
668 (OTAA mode, channel added by JoinAccept message)
669 )))
670
671 (((
672
673 )))
674
675 (((
676 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
677 )))
678
679 (((
680 922.2 - SF7BW125 to SF10BW125
681 )))
682
683 (((
684 922.4 - SF7BW125 to SF10BW125
685 )))
686
687 (((
688 922.6 - SF7BW125 to SF10BW125
689 )))
690
691 (((
692 922.8 - SF7BW125 to SF10BW125
693 )))
694
695 (((
696 923.0 - SF7BW125 to SF10BW125
697 )))
698
699 (((
700 922.0 - SF7BW125 to SF10BW125
701 )))
702
703 (((
704
705 )))
706
707 (((
708 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
709 )))
710
711 (((
712 923.6 - SF7BW125 to SF10BW125
713 )))
714
715 (((
716 923.8 - SF7BW125 to SF10BW125
717 )))
718
719 (((
720 924.0 - SF7BW125 to SF10BW125
721 )))
722
723 (((
724 924.2 - SF7BW125 to SF10BW125
725 )))
726
727 (((
728 924.4 - SF7BW125 to SF10BW125
729 )))
730
731 (((
732 924.6 - SF7BW125 to SF10BW125
733 )))
734
735 (((
736
737 )))
738
739 (((
740 (% style="color:blue" %)**Downlink:**
741 )))
742
743 (((
744 Uplink channels 1-8 (RX1)
745 )))
746
747 (((
748 923.2 - SF10BW125 (RX2)
749 )))
750
751
752 === 2.6.6  KR920-923 (KR920) ===
753
754
755 (((
756 (% style="color:blue" %)**Default channel:**
757 )))
758
759 (((
760 922.1 - SF7BW125 to SF12BW125
761 )))
762
763 (((
764 922.3 - SF7BW125 to SF12BW125
765 )))
766
767 (((
768 922.5 - SF7BW125 to SF12BW125
769 )))
770
771 (((
772
773 )))
774
775 (((
776 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
777 )))
778
779 (((
780 922.1 - SF7BW125 to SF12BW125
781 )))
782
783 (((
784 922.3 - SF7BW125 to SF12BW125
785 )))
786
787 (((
788 922.5 - SF7BW125 to SF12BW125
789 )))
790
791 (((
792 922.7 - SF7BW125 to SF12BW125
793 )))
794
795 (((
796 922.9 - SF7BW125 to SF12BW125
797 )))
798
799 (((
800 923.1 - SF7BW125 to SF12BW125
801 )))
802
803 (((
804 923.3 - SF7BW125 to SF12BW125
805 )))
806
807 (((
808
809 )))
810
811 (((
812 (% style="color:blue" %)**Downlink:**
813 )))
814
815 (((
816 Uplink channels 1-7(RX1)
817 )))
818
819 (((
820 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
821 )))
822
823
824 === 2.6.7  IN865-867 (IN865) ===
825
826
827 (((
828 (% style="color:blue" %)**Uplink:**
829 )))
830
831 (((
832 865.0625 - SF7BW125 to SF12BW125
833 )))
834
835 (((
836 865.4025 - SF7BW125 to SF12BW125
837 )))
838
839 (((
840 865.9850 - SF7BW125 to SF12BW125
841 )))
842
843 (((
844
845 )))
846
847 (((
848 (% style="color:blue" %)**Downlink:**
849 )))
850
851 (((
852 Uplink channels 1-3 (RX1)
853 )))
854
855 (((
856 866.550 - SF10BW125 (RX2)
857 )))
858
859
860 == 2.7  LED Indicator ==
861
862
863 The LDDS75 has an internal LED which is to show the status of different state.
864
865
866 * Blink once when device power on.
867 * The device detects the sensor and flashes 5 times.
868 * Solid ON for 5 seconds once device successful Join the network.
869 * Blink once when device transmit a packet.
870
871 == 2.8  ​Firmware Change Log ==
872
873
874 (((
875 **Firmware download link:  **[[https:~~/~~/www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0>>https://www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0]]
876 )))
877
878 (((
879 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
880 )))
881
882
883 == 2.9  Mechanical ==
884
885
886 [[image:image-20220610172003-1.png||_mstalt="425958"]]
887
888
889 [[image:image-20220610172003-2.png||_mstalt="426322"]]
890
891
892 == 2.10 Battery & Power Consumption ==
893
894
895 LSE01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
896
897 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
898
899
900 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
901
902
903 (((
904 (((
905 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
906 )))
907 )))
908
909 * (((
910 (((
911 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
912 )))
913 )))
914 * (((
915 (((
916 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
917 )))
918 )))
919
920 (((
921 (((
922
923 )))
924
925 (((
926 There are two kinds of commands to configure LDDS75, they are:
927 )))
928 )))
929
930 * (((
931 (((
932 (% style="color:#4f81bd" %)** General Commands**.
933 )))
934 )))
935
936 (((
937 (((
938 These commands are to configure:
939 )))
940 )))
941
942 * (((
943 (((
944 General system settings like: uplink interval.
945 )))
946 )))
947 * (((
948 (((
949 LoRaWAN protocol & radio related command.
950 )))
951 )))
952
953 (((
954 (((
955 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]]
956 )))
957 )))
958
959 (((
960 (((
961
962 )))
963 )))
964
965 * (((
966 (((
967 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
968 )))
969 )))
970
971 (((
972 (((
973 These commands only valid for LDDS75, as below:
974 )))
975 )))
976
977
978 == 3.1  Access AT Commands ==
979
980
981 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.
982
983
984 [[image:image-20220610172924-4.png||_mstalt="430846" height="483" width="988"]]
985
986
987 Or if you have below board, use below connection:
988
989
990 [[image:image-20220610172924-5.png||_mstalt="431210"]]
991
992
993
994 (((
995 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:
996 )))
997
998
999 [[image:image-20220610172924-6.png||_mstalt="6283212" height="601" width="860"]]
1000
1001
1002 == 3.2  Set Transmit Interval Time ==
1003
1004
1005 Feature: Change LoRaWAN End Node Transmit Interval.
1006
1007 (% style="color:#037691" %)**AT Command: AT+TDC**
1008
1009 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1010 |=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 140px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 210px;background-color:#4F81BD;color:white" %)**Response**
1011 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
1012 30000
1013 OK
1014 the interval is 30000ms = 30s
1015 )))
1016 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
1017 OK
1018 Set transmit interval to 60000ms = 60 seconds
1019 )))
1020
1021 (((
1022 (% style="color:#037691" %)**Downlink Command: 0x01**
1023 )))
1024
1025 (((
1026 (((
1027 Format: Command Code (0x01) followed by 3 bytes time value.
1028
1029 (((
1030 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1031 )))
1032
1033 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1034 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1035 )))
1036 )))
1037
1038
1039
1040 == 3.3  Set Interrupt Mode ==
1041
1042
1043 Feature, Set Interrupt mode for GPIO_EXIT.
1044
1045 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1046
1047 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1048 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 196px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Response**
1049 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
1050 0
1051 OK
1052 the mode is 0 =No Interruption
1053 )))
1054 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
1055 Set Transmit Interval
1056 0. (Disable Interrupt),
1057 ~1. (Trigger by rising and falling edge)
1058 2. (Trigger by falling edge)
1059 3. (Trigger by rising edge)
1060 )))|(% style="width:157px" %)OK
1061
1062 (% style="color:#037691" %)**Downlink Command: 0x06**
1063
1064 Format: Command Code (0x06) followed by 3 bytes.
1065
1066 (((
1067 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1068 )))
1069
1070 * Example 1: Downlink Payload: 06000000  ~/~/ Turn off interrupt mode
1071 * Example 2: Downlink Payload: 06000003  ~/~/ Set the interrupt mode to rising edge trigger
1072
1073 = 4.  FAQ =
1074
1075 == 4.1  What is the frequency plan for LDDS75? ==
1076
1077
1078 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"]]
1079
1080
1081 == 4.2  How to change the LoRa Frequency Bands/Region ==
1082
1083
1084 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1085 When downloading the images, choose the required image file for download. ​
1086
1087
1088 == 4.3  Can I use LDDS75 in condensation environment? ==
1089
1090
1091 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1092
1093
1094 = 5.  Trouble Shooting =
1095
1096 == 5.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
1097
1098
1099 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1100
1101
1102 == 5.2  AT Command input doesn't work ==
1103
1104
1105 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.
1106
1107 (((
1108
1109
1110 == 5.3  Why does the sensor reading show 0 or "No sensor" ==
1111
1112
1113 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
1114
1115 2. Sensor wiring is disconnected
1116
1117 3. Not using the correct decoder
1118
1119
1120 == 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 ==
1121
1122
1123 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
1124
1125 2) Does it change with temperature, temperature will affect its measurement
1126
1127 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
1128
1129 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
1130
1131 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
1132
1133 [[image:image-20230113135125-2.png||height="136" width="1057"]]
1134 )))
1135
1136 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
1137
1138 Please send the data to us for check.
1139
1140
1141 = 6.  Order Info =
1142
1143
1144 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1145
1146 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1147
1148 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1149 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1150 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1151 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1152 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1153 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1154 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1155 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1156
1157 (% style="color:blue" %)**YY**(%%): Battery Option
1158
1159 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1160 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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 = 8.  ​Support =
1177
1178
1179 * 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.
1180 * 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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