Version 150.54 by Xiaoling on 2022/06/11 09:21
Show last authors
1 (% style="text-align:center" %)
2 [[image:1654846127817-788.png]]
3
4 **Contents:**
5
6 {{toc/}}
7
8
9
10
11
12
13
14
15 = 1.  Introduction =
16
17 == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18
19 (((
20
21
22 (((
23 (((
24 The Dragino 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.
25 )))
26
27 (((
28
29 )))
30
31 (((
32 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
33 )))
34
35 (((
36
37 )))
38
39 (((
40 The LoRa wireless technology used in 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.
41 )))
42
43 (((
44
45 )))
46
47 (((
48 LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 )))
50
51 (((
52
53 )))
54
55 (((
56 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.
57 )))
58
59 (((
60
61 )))
62
63 (((
64 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 )))
66 )))
67 )))
68
69
70 [[image:1654847051249-359.png]]
71
72
73
74 == ​1.2  Features ==
75
76 * LoRaWAN 1.0.3 Class A
77 * Ultra low power consumption
78 * Distance Detection by Ultrasonic technology
79 * Flat object range 280mm - 7500mm
80 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
81 * Cable Length : 25cm
82 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83 * AT Commands to change parameters
84 * Uplink on periodically
85 * Downlink to change configure
86 * IP66 Waterproof Enclosure
87 * 4000mAh or 8500mAh Battery for long term use
88
89 == 1.3  Specification ==
90
91 === 1.3.1  Rated environmental conditions ===
92
93 [[image:image-20220610154839-1.png]]
94
95 (((
96 **Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
97 )))
98
99
100
101 === 1.3.2  Effective measurement range Reference beam pattern ===
102
103 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
104
105
106
107 [[image:1654852253176-749.png]]
108
109
110
111 (((
112 **(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.**
113 )))
114
115
116 [[image:1654852175653-550.png]](% style="display:none" %) ** **
117
118
119
120 == 1.5 ​ Applications ==
121
122 * Horizontal distance measurement
123 * Liquid level measurement
124 * Parking management system
125 * Object proximity and presence detection
126 * Intelligent trash can management system
127 * Robot obstacle avoidance
128 * Automatic control
129 * Sewer
130 * Bottom water level monitoring
131
132 == 1.6  Pin mapping and power on ==
133
134
135 [[image:1654847583902-256.png]]
136
137
138
139 = 2.  Configure LDDS75 to connect to LoRaWAN network =
140
141 == 2.1  How it works ==
142
143 (((
144 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
145 )))
146
147 (((
148 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.
149 )))
150
151
152
153 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
154
155 (((
156 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.
157 )))
158
159 (((
160 [[image:1654848616367-242.png]]
161 )))
162
163 (((
164 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.
165 )))
166
167 (((
168 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
169 )))
170
171 (((
172 Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
173 )))
174
175 [[image:image-20220607170145-1.jpeg]]
176
177
178 (((
179 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
180 )))
181
182 (((
183 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
184 )))
185
186 (((
187 **Add APP EUI in the application**
188 )))
189
190 [[image:image-20220610161353-4.png]]
191
192 [[image:image-20220610161353-5.png]]
193
194 [[image:image-20220610161353-6.png]]
195
196
197 [[image:image-20220610161353-7.png]]
198
199
200 You can also choose to create the device manually.
201
202 [[image:image-20220610161538-8.png]]
203
204
205
206 **Add APP KEY and DEV EUI**
207
208 [[image:image-20220610161538-9.png]]
209
210
211
212 (% style="color:blue" %)**Step 2**(%%): Power on LDDS75
213
214
215 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
216
217 [[image:image-20220610161724-10.png]]
218
219
220 (((
221 (% 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.
222 )))
223
224 [[image:1654849068701-275.png]]
225
226
227
228 == 2.3  ​Uplink Payload ==
229
230 (((
231 (((
232 LDDS75 will uplink payload via LoRaWAN with below payload format: 
233 )))
234
235 (((
236 Uplink payload includes in total 4 bytes.
237 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
238 )))
239 )))
240
241 (((
242
243 )))
244
245 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
246 |=(% style="width: 62.5px;" %)(((
247 **Size (bytes)**
248 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
249 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
250 [[Distance>>||anchor="H2.3.2A0Distance"]]
251
252 (unit: mm)
253 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
254 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
255 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
256
257 [[image:1654850511545-399.png]]
258
259
260
261 === 2.3.1  Battery Info ===
262
263
264 Check the battery voltage for LDDS75.
265
266 Ex1: 0x0B45 = 2885mV
267
268 Ex2: 0x0B49 = 2889mV
269
270
271
272 === 2.3.2  Distance ===
273
274 (((
275 Get the distance. Flat object range 280mm - 7500mm.
276 )))
277
278 (((
279 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.**
280 )))
281
282
283 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
284 * 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.
285
286
287 === 2.3.3  Interrupt Pin ===
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
299 === 2.3.4  DS18B20 Temperature sensor ===
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
313 === 2.3.5  Sensor Flag ===
314
315 (((
316 0x01: Detect Ultrasonic Sensor
317 )))
318
319 (((
320 0x00: No Ultrasonic Sensor
321 )))
322
323
324
325 === 2.3.6  Decode payload in The Things Network ===
326
327 While using TTN network, you can add the payload format to decode the payload.
328
329
330 [[image:1654850829385-439.png]]
331
332 The payload decoder function for TTN V3 is here:
333
334 (((
335 LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
336 )))
337
338
339
340 == 2.4  Uplink Interval ==
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
346 == 2.5  ​Show Data in DataCake IoT Server ==
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]]
366
367
368 [[image:1654592800389-571.png]]
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]]
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||height="595" width="1088"]]
381
382
383
384 == 2.6  Frequency Plans ==
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
392 === 2.6.1  EU863-870 (EU868) ===
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
452 === 2.6.2  US902-928(US915) ===
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
500 === 2.6.3  CN470-510 (CN470) ===
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
588 === 2.6.4  AU915-928(AU915) ===
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
636 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
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
744 === 2.6.6  KR920-923 (KR920) ===
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
816 === 2.6.7  IN865-867 (IN865) ===
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
852 == 2.7  LED Indicator ==
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: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
869 )))
870
871 (((
872
873 )))
874
875 (((
876 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
877 )))
878
879
880
881 == 2.9  Mechanical ==
882
883
884 [[image:image-20220610172003-1.png]]
885
886
887 [[image:image-20220610172003-2.png]]
888
889
890
891 == 2.10  Battery Analysis ==
892
893 === 2.10.1  Battery Type ===
894
895 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.
896
897
898 The battery related documents as below:
899
900 * (((
901 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
902 )))
903 * (((
904 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
905 )))
906 * (((
907 [[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]]
908 )))
909
910 [[image:image-20220610172400-3.png]]
911
912
913
914 === 2.10.2  Replace the battery ===
915
916 (((
917 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.
918 )))
919
920 (((
921
922 )))
923
924 (((
925 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)
926 )))
927
928
929
930 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
931
932 (((
933 (((
934 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
935 )))
936 )))
937
938 * (((
939 (((
940 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
941 )))
942 )))
943 * (((
944 (((
945 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
946 )))
947 )))
948
949 (((
950 (((
951
952 )))
953
954 (((
955 There are two kinds of commands to configure LDDS75, they are:
956 )))
957 )))
958
959 * (((
960 (((
961 (% style="color:#4f81bd" %)** General Commands**.
962 )))
963 )))
964
965 (((
966 (((
967 These commands are to configure:
968 )))
969 )))
970
971 * (((
972 (((
973 General system settings like: uplink interval.
974 )))
975 )))
976 * (((
977 (((
978 LoRaWAN protocol & radio related command.
979 )))
980 )))
981
982 (((
983 (((
984 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]]
985 )))
986 )))
987
988 (((
989 (((
990
991 )))
992 )))
993
994 * (((
995 (((
996 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
997 )))
998 )))
999
1000 (((
1001 (((
1002 These commands only valid for LDDS75, as below:
1003 )))
1004 )))
1005
1006
1007
1008 == 3.1  Access AT Commands ==
1009
1010 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.
1011
1012 [[image:image-20220610172924-4.png||height="483" width="988"]]
1013
1014
1015 Or if you have below board, use below connection:
1016
1017
1018 [[image:image-20220610172924-5.png]]
1019
1020
1021 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:
1022
1023
1024 [[image:image-20220610172924-6.png||height="601" width="860"]]
1025
1026
1027
1028 == 3.2  Set Transmit Interval Time ==
1029
1030 Feature: Change LoRaWAN End Node Transmit Interval.
1031
1032 (% style="color:#037691" %)**AT Command: AT+TDC**
1033
1034 [[image:image-20220610173409-7.png]]
1035
1036
1037 (((
1038 (% style="color:#037691" %)**Downlink Command: 0x01**
1039 )))
1040
1041 (((
1042 (((
1043 Format: Command Code (0x01) followed by 3 bytes time value.
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 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1048 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1049 )))
1050
1051
1052
1053 )))
1054
1055 == 3.3  Set Interrupt Mode ==
1056
1057 Feature, Set Interrupt mode for GPIO_EXIT.
1058
1059 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1060
1061 [[image:image-20220610174917-9.png]]
1062
1063
1064 (% style="color:#037691" %)**Downlink Command: 0x06**
1065
1066 Format: Command Code (0x06) followed by 3 bytes.
1067
1068 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
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 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"]]
1078
1079
1080
1081 == 4.2  How to change the LoRa Frequency Bands/Region ==
1082
1083 You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1084 When downloading the images, choose the required image file for download. ​
1085
1086
1087
1088 == 4.3  Can I use LDDS75 in condensation environment? ==
1089
1090 LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1091
1092
1093
1094 = 5.  Trouble Shooting =
1095
1096 == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1097
1098 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1099
1100
1101 == 5.2  AT Command input doesn't work ==
1102
1103 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.
1104
1105 (((
1106
1107 )))
1108
1109
1110 = 6.  Order Info =
1111
1112
1113 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1114
1115
1116 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1117
1118 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1119 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1120 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1121 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1122 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1123 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1124 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1125 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1126
1127 (% style="color:blue" %)**YY**(%%): Battery Option
1128
1129 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1130 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1131
1132 = 7. ​ Packing Info =
1133
1134
1135 **Package Includes**:
1136
1137 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1138
1139 **Dimension and weight**:
1140
1141 * Device Size: cm
1142 * Device Weight: g
1143 * Package Size / pcs : cm
1144 * Weight / pcs : g
1145
1146 = 8.  ​Support =
1147
1148 * 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.
1149 * 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]].

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0