Version 156.1 by Bei Jinggeng on 2023/01/13 13:51
Show last authors
1 (% style="text-align:center" %)
2 [[image:1654846127817-788.png||_mstalt="299377"]]
3
4
5
6
7
8 **Table of Contents:**
9
10 {{toc/}}
11
12
13
14
15
16
17
18
19 = 1.  Introduction =
20
21
22 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
23
24 (((
25
26
27 (((
28 (((
29 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.
30 )))
31
32 (((
33 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
34 )))
35
36 (((
37 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.
38 )))
39
40 (((
41 LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
42 )))
43
44 (((
45 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.
46 )))
47
48 (((
49 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
50 )))
51 )))
52 )))
53
54
55 [[image:1654847051249-359.png||_mstalt="296920"]]
56
57
58
59 == ​1.2  Features ==
60
61
62 * LoRaWAN 1.0.3 Class A
63 * Ultra low power consumption
64 * Distance Detection by Ultrasonic technology
65 * Flat object range 280mm - 7500mm
66 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
67 * Cable Length : 25cm
68 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
69 * AT Commands to change parameters
70 * Uplink on periodically
71 * Downlink to change configure
72 * IP66 Waterproof Enclosure
73 * 4000mAh or 8500mAh Battery for long term use
74
75
76
77 == 1.3  Specification ==
78
79
80 === 1.3.1  Rated environmental conditions ===
81
82
83 [[image:image-20220610154839-1.png||_mstalt="431483"]]
84
85 (((
86 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
87
88 **~ 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)**
89 )))
90
91
92
93 === 1.3.2  Effective measurement range Reference beam pattern ===
94
95
96 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
97
98
99
100 [[image:1654852253176-749.png||_mstalt="297557"]]
101
102
103
104 (((
105 **(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.**
106 )))
107
108
109 [[image:1654852175653-550.png||_mstalt="295126"]](% style="display:none" %) ** **
110
111
112
113 == 1.5 ​ Applications ==
114
115
116 * Horizontal distance measurement
117 * Liquid level measurement
118 * Parking management system
119 * Object proximity and presence detection
120 * Intelligent trash can management system
121 * Robot obstacle avoidance
122 * Automatic control
123 * Sewer
124 * Bottom water level monitoring
125
126
127
128 == 1.6  Pin mapping and power on ==
129
130
131 [[image:1654847583902-256.png||_mstalt="296543"]]
132
133
134
135 = 2.  Configure LDDS75 to connect to LoRaWAN network =
136
137
138 == 2.1  How it works ==
139
140
141 (((
142 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
143 )))
144
145 (((
146 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.
147 )))
148
149
150
151 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
152
153
154 (((
155 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.
156 )))
157
158 (((
159 [[image:1654848616367-242.png||_mstalt="295984"]]
160 )))
161
162 (((
163 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.
164 )))
165
166 (((
167
168
169 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
170 )))
171
172 (((
173 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
174 )))
175
176 [[image:image-20220607170145-1.jpeg||_mstalt="471042"]]
177
178
179 (((
180 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
181 )))
182
183 (((
184 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
185 )))
186
187 (((
188
189
190 **Add APP EUI in the application**
191 )))
192
193 [[image:image-20220610161353-4.png||_mstalt="429026"]]
194
195 [[image:image-20220610161353-5.png||_mstalt="429390"]]
196
197 [[image:image-20220610161353-6.png||_mstalt="429754"]]
198
199
200 [[image:image-20220610161353-7.png||_mstalt="430118"]]
201
202
203 You can also choose to create the device manually.
204
205 [[image:image-20220610161538-8.png||_mstalt="432146"]]
206
207
208
209 **Add APP KEY and DEV EUI**
210
211 [[image:image-20220610161538-9.png||_mstalt="432510"]]
212
213
214
215 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
216
217
218 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
219
220 [[image:image-20220610161724-10.png||_mstalt="451464"]]
221
222
223
224 (((
225 (% 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.
226 )))
227
228 [[image:1654849068701-275.png||_mstalt="296205"]]
229
230
231
232 == 2.3  ​Uplink Payload ==
233
234
235 (((
236 (((
237 LDDS75 will uplink payload via LoRaWAN with below payload format: 
238 )))
239
240 (((
241 Uplink payload includes in total 4 bytes.
242 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
243 )))
244 )))
245
246 (((
247
248 )))
249
250 (% border="1" cellspacing="5" style="background-color:#ffffcc; width:510px" %)
251 |=(% style="width: 62.5px;" %)(((
252 **Size(bytes)**
253 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
254 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
255 [[Distance>>||anchor="H2.3.2A0Distance"]]
256 (unit: mm)
257 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
258 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
259 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
260
261 [[image:1654850511545-399.png||_mstalt="296842"]]
262
263
264
265 === 2.3.1  Battery Info ===
266
267
268 Check the battery voltage for LDDS75.
269
270 Ex1: 0x0B45 = 2885mV
271
272 Ex2: 0x0B49 = 2889mV
273
274
275
276 === 2.3.2  Distance ===
277
278
279 (((
280 Get the distance. Flat object range 280mm - 7500mm.
281 )))
282
283 (((
284 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" %)** **
285
286 (% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
287 )))
288
289
290 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
291 * 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.
292
293
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
308 === 2.3.4  DS18B20 Temperature sensor ===
309
310
311 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
312
313 **Example**:
314
315 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
316
317 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
318
319 (% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.**
320
321
322
323 === 2.3.5  Sensor Flag ===
324
325
326 (((
327 0x01: Detect Ultrasonic Sensor
328 )))
329
330 (((
331 0x00: No Ultrasonic Sensor
332 )))
333
334
335
336 === 2.3.6  Decode payload in The Things Network ===
337
338
339 While using TTN network, you can add the payload format to decode the payload.
340
341
342 [[image:1654850829385-439.png||_mstalt="298298"]]
343
344 The payload decoder function for TTN V3 is here:
345
346 (((
347 LDDS75 TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
348 )))
349
350
351
352 == 2.4  Uplink Interval ==
353
354
355 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"]]
356
357
358
359 == 2.5  ​Show Data in DataCake IoT Server ==
360
361
362 (((
363 [[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:
364 )))
365
366 (((
367
368 )))
369
370 (((
371 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
372 )))
373
374 (((
375 (% 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:**
376 )))
377
378
379 [[image:1654592790040-760.png||_mstalt="294294"]]
380
381
382 [[image:1654592800389-571.png||_mstalt="296582"]]
383
384
385 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
386
387 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
388
389 [[image:1654851029373-510.png||_mstalt="293293"]]
390
391
392 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
393
394 [[image:image-20220610165129-11.png||_mstalt="452855" height="595" width="1088"]]
395
396
397
398 == 2.6  Frequency Plans ==
399
400
401 (((
402 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.
403 )))
404
405
406
407 === 2.6.1  EU863-870 (EU868) ===
408
409
410 (((
411 (% style="color:blue" %)**Uplink:**
412 )))
413
414 (((
415 868.1 - SF7BW125 to SF12BW125
416 )))
417
418 (((
419 868.3 - SF7BW125 to SF12BW125 and SF7BW250
420 )))
421
422 (((
423 868.5 - SF7BW125 to SF12BW125
424 )))
425
426 (((
427 867.1 - SF7BW125 to SF12BW125
428 )))
429
430 (((
431 867.3 - SF7BW125 to SF12BW125
432 )))
433
434 (((
435 867.5 - SF7BW125 to SF12BW125
436 )))
437
438 (((
439 867.7 - SF7BW125 to SF12BW125
440 )))
441
442 (((
443 867.9 - SF7BW125 to SF12BW125
444 )))
445
446 (((
447 868.8 - FSK
448 )))
449
450 (((
451
452 )))
453
454 (((
455 (% style="color:blue" %)**Downlink:**
456 )))
457
458 (((
459 Uplink channels 1-9 (RX1)
460 )))
461
462 (((
463 869.525 - SF9BW125 (RX2 downlink only)
464 )))
465
466
467
468 === 2.6.2  US902-928(US915) ===
469
470
471 (((
472 Used in USA, Canada and South America. Default use CHE=2
473
474 (% style="color:blue" %)**Uplink:**
475
476 903.9 - SF7BW125 to SF10BW125
477
478 904.1 - SF7BW125 to SF10BW125
479
480 904.3 - SF7BW125 to SF10BW125
481
482 904.5 - SF7BW125 to SF10BW125
483
484 904.7 - SF7BW125 to SF10BW125
485
486 904.9 - SF7BW125 to SF10BW125
487
488 905.1 - SF7BW125 to SF10BW125
489
490 905.3 - SF7BW125 to SF10BW125
491
492
493 (% style="color:blue" %)**Downlink:**
494
495 923.3 - SF7BW500 to SF12BW500
496
497 923.9 - SF7BW500 to SF12BW500
498
499 924.5 - SF7BW500 to SF12BW500
500
501 925.1 - SF7BW500 to SF12BW500
502
503 925.7 - SF7BW500 to SF12BW500
504
505 926.3 - SF7BW500 to SF12BW500
506
507 926.9 - SF7BW500 to SF12BW500
508
509 927.5 - SF7BW500 to SF12BW500
510
511 923.3 - SF12BW500(RX2 downlink only)
512
513
514
515 )))
516
517 === 2.6.3  CN470-510 (CN470) ===
518
519
520 (((
521 Used in China, Default use CHE=1
522 )))
523
524 (((
525 (% style="color:blue" %)**Uplink:**
526 )))
527
528 (((
529 486.3 - SF7BW125 to SF12BW125
530 )))
531
532 (((
533 486.5 - SF7BW125 to SF12BW125
534 )))
535
536 (((
537 486.7 - SF7BW125 to SF12BW125
538 )))
539
540 (((
541 486.9 - SF7BW125 to SF12BW125
542 )))
543
544 (((
545 487.1 - SF7BW125 to SF12BW125
546 )))
547
548 (((
549 487.3 - SF7BW125 to SF12BW125
550 )))
551
552 (((
553 487.5 - SF7BW125 to SF12BW125
554 )))
555
556 (((
557 487.7 - SF7BW125 to SF12BW125
558 )))
559
560 (((
561
562 )))
563
564 (((
565 (% style="color:blue" %)**Downlink:**
566 )))
567
568 (((
569 506.7 - SF7BW125 to SF12BW125
570 )))
571
572 (((
573 506.9 - SF7BW125 to SF12BW125
574 )))
575
576 (((
577 507.1 - SF7BW125 to SF12BW125
578 )))
579
580 (((
581 507.3 - SF7BW125 to SF12BW125
582 )))
583
584 (((
585 507.5 - SF7BW125 to SF12BW125
586 )))
587
588 (((
589 507.7 - SF7BW125 to SF12BW125
590 )))
591
592 (((
593 507.9 - SF7BW125 to SF12BW125
594 )))
595
596 (((
597 508.1 - SF7BW125 to SF12BW125
598 )))
599
600 (((
601 505.3 - SF12BW125 (RX2 downlink only)
602 )))
603
604
605
606 === 2.6.4  AU915-928(AU915) ===
607
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 (((
659 (% style="color:blue" %)**Default Uplink channel:**
660 )))
661
662 (((
663 923.2 - SF7BW125 to SF10BW125
664 )))
665
666 (((
667 923.4 - SF7BW125 to SF10BW125
668 )))
669
670 (((
671
672 )))
673
674 (((
675 (% style="color:blue" %)**Additional Uplink Channel**:
676 )))
677
678 (((
679 (OTAA mode, channel added by JoinAccept message)
680 )))
681
682 (((
683
684 )))
685
686 (((
687 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
688 )))
689
690 (((
691 922.2 - SF7BW125 to SF10BW125
692 )))
693
694 (((
695 922.4 - SF7BW125 to SF10BW125
696 )))
697
698 (((
699 922.6 - SF7BW125 to SF10BW125
700 )))
701
702 (((
703 922.8 - SF7BW125 to SF10BW125
704 )))
705
706 (((
707 923.0 - SF7BW125 to SF10BW125
708 )))
709
710 (((
711 922.0 - SF7BW125 to SF10BW125
712 )))
713
714 (((
715
716 )))
717
718 (((
719 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
720 )))
721
722 (((
723 923.6 - SF7BW125 to SF10BW125
724 )))
725
726 (((
727 923.8 - SF7BW125 to SF10BW125
728 )))
729
730 (((
731 924.0 - SF7BW125 to SF10BW125
732 )))
733
734 (((
735 924.2 - SF7BW125 to SF10BW125
736 )))
737
738 (((
739 924.4 - SF7BW125 to SF10BW125
740 )))
741
742 (((
743 924.6 - SF7BW125 to SF10BW125
744 )))
745
746 (((
747
748 )))
749
750 (((
751 (% style="color:blue" %)**Downlink:**
752 )))
753
754 (((
755 Uplink channels 1-8 (RX1)
756 )))
757
758 (((
759 923.2 - SF10BW125 (RX2)
760 )))
761
762
763
764 === 2.6.6  KR920-923 (KR920) ===
765
766
767 (((
768 (% style="color:blue" %)**Default channel:**
769 )))
770
771 (((
772 922.1 - SF7BW125 to SF12BW125
773 )))
774
775 (((
776 922.3 - SF7BW125 to SF12BW125
777 )))
778
779 (((
780 922.5 - SF7BW125 to SF12BW125
781 )))
782
783 (((
784
785 )))
786
787 (((
788 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
789 )))
790
791 (((
792 922.1 - SF7BW125 to SF12BW125
793 )))
794
795 (((
796 922.3 - SF7BW125 to SF12BW125
797 )))
798
799 (((
800 922.5 - SF7BW125 to SF12BW125
801 )))
802
803 (((
804 922.7 - SF7BW125 to SF12BW125
805 )))
806
807 (((
808 922.9 - SF7BW125 to SF12BW125
809 )))
810
811 (((
812 923.1 - SF7BW125 to SF12BW125
813 )))
814
815 (((
816 923.3 - SF7BW125 to SF12BW125
817 )))
818
819 (((
820
821 )))
822
823 (((
824 (% style="color:blue" %)**Downlink:**
825 )))
826
827 (((
828 Uplink channels 1-7(RX1)
829 )))
830
831 (((
832 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
833 )))
834
835
836
837 === 2.6.7  IN865-867 (IN865) ===
838
839
840 (((
841 (% style="color:blue" %)**Uplink:**
842 )))
843
844 (((
845 865.0625 - SF7BW125 to SF12BW125
846 )))
847
848 (((
849 865.4025 - SF7BW125 to SF12BW125
850 )))
851
852 (((
853 865.9850 - SF7BW125 to SF12BW125
854 )))
855
856 (((
857
858 )))
859
860 (((
861 (% style="color:blue" %)**Downlink:**
862 )))
863
864 (((
865 Uplink channels 1-3 (RX1)
866 )))
867
868 (((
869 866.550 - SF10BW125 (RX2)
870 )))
871
872
873
874 == 2.7  LED Indicator ==
875
876
877 The LDDS75 has an internal LED which is to show the status of different state.
878
879
880 * Blink once when device power on.
881 * The device detects the sensor and flashes 5 times.
882 * Solid ON for 5 seconds once device successful Join the network.
883 * Blink once when device transmit a packet.
884
885
886
887 == 2.8  ​Firmware Change Log ==
888
889
890 (((
891 **Firmware download link:  **[[https:~~/~~/www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0>>https://www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0]]
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||_mstalt="425958"]]
904
905
906 [[image:image-20220610172003-2.png||_mstalt="426322"]]
907
908
909
910 == 2.10  Battery Analysis ==
911
912
913 === 2.10.1  Battery Type ===
914
915
916 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.
917
918
919 The battery related documents as below:
920
921 * (((
922 [[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/]],
923 )))
924 * (((
925 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
926 )))
927 * (((
928 [[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/]]
929 )))
930
931 [[image:image-20220610172400-3.png||_mstalt="426920"]]
932
933
934
935 === 2.10.2  Replace the battery ===
936
937
938 (((
939 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.
940 )))
941
942 (((
943
944 )))
945
946 (((
947 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)
948 )))
949
950
951
952 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
953
954
955 (((
956 (((
957 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
958 )))
959 )))
960
961 * (((
962 (((
963 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
964 )))
965 )))
966 * (((
967 (((
968 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
969 )))
970 )))
971
972 (((
973 (((
974
975 )))
976
977 (((
978 There are two kinds of commands to configure LDDS75, they are:
979 )))
980 )))
981
982 * (((
983 (((
984 (% style="color:#4f81bd" %)** General Commands**.
985 )))
986 )))
987
988 (((
989 (((
990 These commands are to configure:
991 )))
992 )))
993
994 * (((
995 (((
996 General system settings like: uplink interval.
997 )))
998 )))
999 * (((
1000 (((
1001 LoRaWAN protocol & radio related command.
1002 )))
1003 )))
1004
1005 (((
1006 (((
1007 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]]
1008 )))
1009 )))
1010
1011 (((
1012 (((
1013
1014 )))
1015 )))
1016
1017 * (((
1018 (((
1019 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
1020 )))
1021 )))
1022
1023 (((
1024 (((
1025 These commands only valid for LDDS75, as below:
1026 )))
1027 )))
1028
1029
1030
1031 == 3.1  Access AT Commands ==
1032
1033
1034 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.
1035
1036
1037 [[image:image-20220610172924-4.png||_mstalt="430846" height="483" width="988"]]
1038
1039
1040
1041 Or if you have below board, use below connection:
1042
1043
1044 [[image:image-20220610172924-5.png||_mstalt="431210"]]
1045
1046
1047
1048 (((
1049 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:
1050 )))
1051
1052
1053 [[image:image-20220610172924-6.png||_mstalt="6283212" height="601" width="860"]]
1054
1055
1056
1057 == 3.2  Set Transmit Interval Time ==
1058
1059
1060 Feature: Change LoRaWAN End Node Transmit Interval.
1061
1062 (% style="color:#037691" %)**AT Command: AT+TDC**
1063
1064 [[image:image-20220610173409-7.png||_mstalt="6283355"]]
1065
1066
1067 (((
1068 (% style="color:#037691" %)**Downlink Command: 0x01**
1069 )))
1070
1071 (((
1072 (((
1073 Format: Command Code (0x01) followed by 3 bytes time value.
1074
1075 (((
1076 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1077 )))
1078
1079 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1080 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1081 )))
1082 )))
1083
1084
1085
1086
1087 == 3.3  Set Interrupt Mode ==
1088
1089
1090 Feature, Set Interrupt mode for GPIO_EXIT.
1091
1092 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1093
1094 [[image:image-20220610174917-9.png||_mstalt="6285318"]]
1095
1096
1097 (% style="color:#037691" %)**Downlink Command: 0x06**
1098
1099 Format: Command Code (0x06) followed by 3 bytes.
1100
1101 (((
1102 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1103 )))
1104
1105 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1106 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1107
1108
1109
1110 = 4.  FAQ =
1111
1112
1113 == 4.1  What is the frequency plan for LDDS75? ==
1114
1115
1116 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"]]
1117
1118
1119
1120 == 4.2  How to change the LoRa Frequency Bands/Region ==
1121
1122
1123 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1124 When downloading the images, choose the required image file for download. ​
1125
1126
1127
1128 == 4.3  Can I use LDDS75 in condensation environment? ==
1129
1130
1131 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1132
1133
1134
1135 = 5.  Trouble Shooting =
1136
1137
1138 == 5.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
1139
1140
1141 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1142
1143
1144 == 5.2  AT Command input doesn't work ==
1145
1146
1147 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.
1148
1149 (((
1150
1151
1152 == 5.3 Why does the sensor reading show 0 or "No sensor" ==
1153
1154
1155 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
1156
1157 2. Sensor wiring is disconnected
1158
1159 3. Not using the correct decoder
1160
1161
1162 )))
1163
1164
1165 = 6.  Order Info =
1166
1167
1168 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1169
1170
1171 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1172
1173 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1174 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1175 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1176 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1177 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1178 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1179 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1180 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1181
1182 (% style="color:blue" %)**YY**(%%): Battery Option
1183
1184 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1185 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1186
1187
1188
1189 = 7. ​ Packing Info =
1190
1191
1192 **Package Includes**:
1193
1194 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1195
1196 **Dimension and weight**:
1197
1198 * Device Size: cm
1199 * Device Weight: g
1200 * Package Size / pcs : cm
1201 * Weight / pcs : g
1202
1203
1204
1205 = 8.  ​Support =
1206
1207
1208 * 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.
1209 * 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]].
1210
1211

Applications

Navigation

Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0