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1 (% style="text-align:center" %)
2 [[image:1654846127817-788.png||_mstalt="299377"]]
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7
8 **Table of Contents:**
9
10 {{toc/}}
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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 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
185
186 **Create the application.**
187
188 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
189
190 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
191
192
193 **Add devices to the created Application.**
194
195 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
196
197 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
198
199
200 **Enter end device specifics manually.**
201
202 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
203
204
205 **Add DevEUI and AppKey. Customize a platform ID for the device.**
206
207 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
208
209
210 (% style="color:blue" %)**Step 2**(%%): Add decoder.
211
212 In TTN, user can add a custom payload so it shows friendly reading.
213
214 Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
215
216 Below is TTN screen shot:
217
218 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140556-1.png?width=1184&height=488&rev=1.1||alt="image-20241009140556-1.png" height="488" width="1184"]]
219
220 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140603-2.png?width=1168&height=562&rev=1.1||alt="image-20241009140603-2.png" height="562" width="1168"]]
221 )))
222
223
224 (% style="color:blue" %)**Step 3**(%%): Power on LDDS75
225
226 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
227
228 [[image:image-20220610161724-10.png||_mstalt="451464"]]
229
230 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 [[image:1654849068701-275.png||_mstalt="296205"]]
233
234
235 == 2.3  ​Uplink Payload ==
236
237
238 (((
239 (((
240 LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 )))
242
243 (((
244 Uplink payload includes in total 4 bytes.
245 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
246 )))
247 )))
248
249 (((
250
251 )))
252
253 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
254 |=(% style="width: 62.5px;background-color:#4F81BD;color:white" %)(((
255 **Size(bytes)**
256 )))|=(% 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**
257 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
258 [[Distance>>||anchor="H2.3.2A0Distance"]]
259 (unit: mm)
260 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
261 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
262 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
263
264 [[image:1654850511545-399.png||_mstalt="296842"]]
265
266
267 === 2.3.1  Battery Info ===
268
269
270 Check the battery voltage for LDDS75.
271
272 Ex1: 0x0B45 = 2885mV
273
274 Ex2: 0x0B49 = 2889mV
275
276
277 === 2.3.2  Distance ===
278
279
280 (((
281 Get the distance. Flat object range 280mm - 7500mm.
282 )))
283
284 (((
285 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" %)** **
286
287 (% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
288 )))
289
290
291 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
292 * 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.
293
294 === 2.3.3  Interrupt Pin ===
295
296
297 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.
298
299 **Example:**
300
301 0x00: Normal uplink packet.
302
303 0x01: Interrupt Uplink Packet.
304
305
306 === 2.3.4  DS18B20 Temperature sensor ===
307
308
309 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
310
311 **Example**:
312
313 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
314
315 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
316
317 (% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.**
318
319
320 === 2.3.5  Sensor Flag ===
321
322
323 (((
324 0x01: Detect Ultrasonic Sensor
325 )))
326
327 (((
328 0x00: No Ultrasonic Sensor
329 )))
330
331
332 === 2.3.6  Decode payload in The Things Network ===
333
334
335 While using TTN network, you can add the payload format to decode the payload.
336
337
338 [[image:1654850829385-439.png||_mstalt="298298"]]
339
340 The payload decoder function for TTN V3 is here:
341
342 (((
343 LDDS75 TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
344 )))
345
346
347 == 2.4  Uplink Interval ==
348
349
350 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"]]
351
352
353 == 2.5  ​Show Data in DataCake IoT Server ==
354
355
356 (((
357 [[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:
358 )))
359
360 (((
361
362 )))
363
364 (((
365 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
366 )))
367
368 (((
369 (% 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:**
370 )))
371
372
373 [[image:1654592790040-760.png||_mstalt="294294"]]
374
375
376 [[image:1654592800389-571.png||_mstalt="296582"]]
377
378
379 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
380
381 (% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
382
383 [[image:1654851029373-510.png||_mstalt="293293"]]
384
385
386 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
387
388 [[image:image-20220610165129-11.png||_mstalt="452855" height="595" width="1088"]]
389
390
391 == 2.6  Frequency Plans ==
392
393
394 (((
395 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.
396 )))
397
398
399 === 2.6.1  EU863-870 (EU868) ===
400
401
402 (((
403 (% style="color:blue" %)**Uplink:**
404 )))
405
406 (((
407 868.1 - SF7BW125 to SF12BW125
408 )))
409
410 (((
411 868.3 - SF7BW125 to SF12BW125 and SF7BW250
412 )))
413
414 (((
415 868.5 - SF7BW125 to SF12BW125
416 )))
417
418 (((
419 867.1 - SF7BW125 to SF12BW125
420 )))
421
422 (((
423 867.3 - SF7BW125 to SF12BW125
424 )))
425
426 (((
427 867.5 - SF7BW125 to SF12BW125
428 )))
429
430 (((
431 867.7 - SF7BW125 to SF12BW125
432 )))
433
434 (((
435 867.9 - SF7BW125 to SF12BW125
436 )))
437
438 (((
439 868.8 - FSK
440 )))
441
442 (((
443
444 )))
445
446 (((
447 (% style="color:blue" %)**Downlink:**
448 )))
449
450 (((
451 Uplink channels 1-9 (RX1)
452 )))
453
454 (((
455 869.525 - SF9BW125 (RX2 downlink only)
456 )))
457
458
459 === 2.6.2  US902-928(US915) ===
460
461
462 (((
463 Used in USA, Canada and South America. Default use CHE=2
464
465 (% style="color:blue" %)**Uplink:**
466
467 903.9 - SF7BW125 to SF10BW125
468
469 904.1 - SF7BW125 to SF10BW125
470
471 904.3 - SF7BW125 to SF10BW125
472
473 904.5 - SF7BW125 to SF10BW125
474
475 904.7 - SF7BW125 to SF10BW125
476
477 904.9 - SF7BW125 to SF10BW125
478
479 905.1 - SF7BW125 to SF10BW125
480
481 905.3 - SF7BW125 to SF10BW125
482
483
484 (% style="color:blue" %)**Downlink:**
485
486 923.3 - SF7BW500 to SF12BW500
487
488 923.9 - SF7BW500 to SF12BW500
489
490 924.5 - SF7BW500 to SF12BW500
491
492 925.1 - SF7BW500 to SF12BW500
493
494 925.7 - SF7BW500 to SF12BW500
495
496 926.3 - SF7BW500 to SF12BW500
497
498 926.9 - SF7BW500 to SF12BW500
499
500 927.5 - SF7BW500 to SF12BW500
501
502 923.3 - SF12BW500(RX2 downlink only)
503
504
505 )))
506
507 === 2.6.3  CN470-510 (CN470) ===
508
509
510 (((
511 Used in China, Default use CHE=1
512 )))
513
514 (((
515 (% style="color:blue" %)**Uplink:**
516 )))
517
518 (((
519 486.3 - SF7BW125 to SF12BW125
520 )))
521
522 (((
523 486.5 - SF7BW125 to SF12BW125
524 )))
525
526 (((
527 486.7 - SF7BW125 to SF12BW125
528 )))
529
530 (((
531 486.9 - SF7BW125 to SF12BW125
532 )))
533
534 (((
535 487.1 - SF7BW125 to SF12BW125
536 )))
537
538 (((
539 487.3 - SF7BW125 to SF12BW125
540 )))
541
542 (((
543 487.5 - SF7BW125 to SF12BW125
544 )))
545
546 (((
547 487.7 - SF7BW125 to SF12BW125
548 )))
549
550 (((
551
552 )))
553
554 (((
555 (% style="color:blue" %)**Downlink:**
556 )))
557
558 (((
559 506.7 - SF7BW125 to SF12BW125
560 )))
561
562 (((
563 506.9 - SF7BW125 to SF12BW125
564 )))
565
566 (((
567 507.1 - SF7BW125 to SF12BW125
568 )))
569
570 (((
571 507.3 - SF7BW125 to SF12BW125
572 )))
573
574 (((
575 507.5 - SF7BW125 to SF12BW125
576 )))
577
578 (((
579 507.7 - SF7BW125 to SF12BW125
580 )))
581
582 (((
583 507.9 - SF7BW125 to SF12BW125
584 )))
585
586 (((
587 508.1 - SF7BW125 to SF12BW125
588 )))
589
590 (((
591 505.3 - SF12BW125 (RX2 downlink only)
592 )))
593
594
595 === 2.6.4  AU915-928(AU915) ===
596
597
598 (((
599 Default use CHE=2
600
601 (% style="color:blue" %)**Uplink:**
602
603 916.8 - SF7BW125 to SF12BW125
604
605 917.0 - SF7BW125 to SF12BW125
606
607 917.2 - SF7BW125 to SF12BW125
608
609 917.4 - SF7BW125 to SF12BW125
610
611 917.6 - SF7BW125 to SF12BW125
612
613 917.8 - SF7BW125 to SF12BW125
614
615 918.0 - SF7BW125 to SF12BW125
616
617 918.2 - SF7BW125 to SF12BW125
618
619
620 (% style="color:blue" %)**Downlink:**
621
622 923.3 - SF7BW500 to SF12BW500
623
624 923.9 - SF7BW500 to SF12BW500
625
626 924.5 - SF7BW500 to SF12BW500
627
628 925.1 - SF7BW500 to SF12BW500
629
630 925.7 - SF7BW500 to SF12BW500
631
632 926.3 - SF7BW500 to SF12BW500
633
634 926.9 - SF7BW500 to SF12BW500
635
636 927.5 - SF7BW500 to SF12BW500
637
638 923.3 - SF12BW500(RX2 downlink only)
639
640
641 )))
642
643 === 2.6.5  AS920-923 & AS923-925 (AS923) ===
644
645
646 (((
647 (% style="color:blue" %)**Default Uplink channel:**
648 )))
649
650 (((
651 923.2 - SF7BW125 to SF10BW125
652 )))
653
654 (((
655 923.4 - SF7BW125 to SF10BW125
656 )))
657
658 (((
659
660 )))
661
662 (((
663 (% style="color:blue" %)**Additional Uplink Channel**:
664 )))
665
666 (((
667 (OTAA mode, channel added by JoinAccept message)
668 )))
669
670 (((
671
672 )))
673
674 (((
675 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
676 )))
677
678 (((
679 922.2 - SF7BW125 to SF10BW125
680 )))
681
682 (((
683 922.4 - SF7BW125 to SF10BW125
684 )))
685
686 (((
687 922.6 - SF7BW125 to SF10BW125
688 )))
689
690 (((
691 922.8 - SF7BW125 to SF10BW125
692 )))
693
694 (((
695 923.0 - SF7BW125 to SF10BW125
696 )))
697
698 (((
699 922.0 - SF7BW125 to SF10BW125
700 )))
701
702 (((
703
704 )))
705
706 (((
707 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
708 )))
709
710 (((
711 923.6 - SF7BW125 to SF10BW125
712 )))
713
714 (((
715 923.8 - SF7BW125 to SF10BW125
716 )))
717
718 (((
719 924.0 - SF7BW125 to SF10BW125
720 )))
721
722 (((
723 924.2 - SF7BW125 to SF10BW125
724 )))
725
726 (((
727 924.4 - SF7BW125 to SF10BW125
728 )))
729
730 (((
731 924.6 - SF7BW125 to SF10BW125
732 )))
733
734 (((
735
736 )))
737
738 (((
739 (% style="color:blue" %)**Downlink:**
740 )))
741
742 (((
743 Uplink channels 1-8 (RX1)
744 )))
745
746 (((
747 923.2 - SF10BW125 (RX2)
748 )))
749
750
751 === 2.6.6  KR920-923 (KR920) ===
752
753
754 (((
755 (% style="color:blue" %)**Default channel:**
756 )))
757
758 (((
759 922.1 - SF7BW125 to SF12BW125
760 )))
761
762 (((
763 922.3 - SF7BW125 to SF12BW125
764 )))
765
766 (((
767 922.5 - SF7BW125 to SF12BW125
768 )))
769
770 (((
771
772 )))
773
774 (((
775 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
776 )))
777
778 (((
779 922.1 - SF7BW125 to SF12BW125
780 )))
781
782 (((
783 922.3 - SF7BW125 to SF12BW125
784 )))
785
786 (((
787 922.5 - SF7BW125 to SF12BW125
788 )))
789
790 (((
791 922.7 - SF7BW125 to SF12BW125
792 )))
793
794 (((
795 922.9 - SF7BW125 to SF12BW125
796 )))
797
798 (((
799 923.1 - SF7BW125 to SF12BW125
800 )))
801
802 (((
803 923.3 - SF7BW125 to SF12BW125
804 )))
805
806 (((
807
808 )))
809
810 (((
811 (% style="color:blue" %)**Downlink:**
812 )))
813
814 (((
815 Uplink channels 1-7(RX1)
816 )))
817
818 (((
819 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
820 )))
821
822
823 === 2.6.7  IN865-867 (IN865) ===
824
825
826 (((
827 (% style="color:blue" %)**Uplink:**
828 )))
829
830 (((
831 865.0625 - SF7BW125 to SF12BW125
832 )))
833
834 (((
835 865.4025 - SF7BW125 to SF12BW125
836 )))
837
838 (((
839 865.9850 - SF7BW125 to SF12BW125
840 )))
841
842 (((
843
844 )))
845
846 (((
847 (% style="color:blue" %)**Downlink:**
848 )))
849
850 (((
851 Uplink channels 1-3 (RX1)
852 )))
853
854 (((
855 866.550 - SF10BW125 (RX2)
856 )))
857
858
859 == 2.7  LED Indicator ==
860
861
862 The LDDS75 has an internal LED which is to show the status of different state.
863
864
865 * Blink once when device power on.
866 * The device detects the sensor and flashes 5 times.
867 * Solid ON for 5 seconds once device successful Join the network.
868 * Blink once when device transmit a packet.
869
870 == 2.8  ​Firmware Change Log ==
871
872
873 (((
874 **Firmware download link:  **[[https:~~/~~/www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0>>https://www.dropbox.com/sh/47fsmpbfv4qrw2d/AACy5NcU8MCMFVpYITSUfVLPa?dl=0]]
875 )))
876
877 (((
878 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
879 )))
880
881
882 == 2.9  Mechanical ==
883
884
885 [[image:image-20220610172003-1.png||_mstalt="425958"]]
886
887
888 [[image:image-20220610172003-2.png||_mstalt="426322"]]
889
890
891 == 2.10 Battery & Power Consumption ==
892
893
894 LSE01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
895
896 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
897
898
899 = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
900
901
902 (((
903 (((
904 Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
905 )))
906 )))
907
908 * (((
909 (((
910 AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
911 )))
912 )))
913 * (((
914 (((
915 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
916 )))
917 )))
918
919 (((
920 (((
921
922 )))
923
924 (((
925 There are two kinds of commands to configure LDDS75, they are:
926 )))
927 )))
928
929 * (((
930 (((
931 (% style="color:#4f81bd" %)** General Commands**.
932 )))
933 )))
934
935 (((
936 (((
937 These commands are to configure:
938 )))
939 )))
940
941 * (((
942 (((
943 General system settings like: uplink interval.
944 )))
945 )))
946 * (((
947 (((
948 LoRaWAN protocol & radio related command.
949 )))
950 )))
951
952 (((
953 (((
954 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]]
955 )))
956 )))
957
958 (((
959 (((
960
961 )))
962 )))
963
964 * (((
965 (((
966 (% style="color:#4f81bd" %)** Commands special design for LDDS75**
967 )))
968 )))
969
970 (((
971 (((
972 These commands only valid for LDDS75, as below:
973 )))
974 )))
975
976
977 == 3.1  Access AT Commands ==
978
979
980 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.
981
982
983 [[image:image-20220610172924-4.png||_mstalt="430846" height="483" width="988"]]
984
985
986 Or if you have below board, use below connection:
987
988
989 [[image:image-20220610172924-5.png||_mstalt="431210"]]
990
991
992
993 (((
994 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:
995 )))
996
997
998 [[image:image-20220610172924-6.png||_mstalt="6283212" height="601" width="860"]]
999
1000
1001 == 3.2  Set Transmit Interval Time ==
1002
1003
1004 Feature: Change LoRaWAN End Node Transmit Interval.
1005
1006 (% style="color:#037691" %)**AT Command: AT+TDC**
1007
1008 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1009 |=(% 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**
1010 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
1011 30000
1012 OK
1013 the interval is 30000ms = 30s
1014 )))
1015 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
1016 OK
1017 Set transmit interval to 60000ms = 60 seconds
1018 )))
1019
1020 (((
1021 (% style="color:#037691" %)**Downlink Command: 0x01**
1022 )))
1023
1024 (((
1025 (((
1026 Format: Command Code (0x01) followed by 3 bytes time value.
1027
1028 (((
1029 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1030 )))
1031
1032 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1033 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1034 )))
1035 )))
1036
1037
1038
1039 == 3.3  Set Interrupt Mode ==
1040
1041
1042 Feature, Set Interrupt mode for GPIO_EXIT.
1043
1044 (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1045
1046 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1047 |=(% 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**
1048 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
1049 0
1050 OK
1051 the mode is 0 =No Interruption
1052 )))
1053 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
1054 Set Transmit Interval
1055 0. (Disable Interrupt),
1056 ~1. (Trigger by rising and falling edge)
1057 2. (Trigger by falling edge)
1058 3. (Trigger by rising edge)
1059 )))|(% style="width:157px" %)OK
1060
1061 (% style="color:#037691" %)**Downlink Command: 0x06**
1062
1063 Format: Command Code (0x06) followed by 3 bytes.
1064
1065 (((
1066 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1067 )))
1068
1069 * Example 1: Downlink Payload: 06000000  ~/~/ Turn off interrupt mode
1070 * Example 2: Downlink Payload: 06000003  ~/~/ Set the interrupt mode to rising edge trigger
1071
1072 = 4.  FAQ =
1073
1074 == 4.1  What is the frequency plan for LDDS75? ==
1075
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 == 4.2  How to change the LoRa Frequency Bands/Region ==
1081
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 == 4.3  Can I use LDDS75 in condensation environment? ==
1088
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 = 5.  Trouble Shooting =
1094
1095 == 5.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
1096
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
1104 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.
1105
1106 (((
1107
1108
1109 == 5.3  Why does the sensor reading show 0 or "No sensor" ==
1110
1111
1112 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
1113
1114 2. Sensor wiring is disconnected
1115
1116 3. Not using the correct decoder
1117
1118
1119 == 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 ==
1120
1121
1122 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
1123
1124 2) Does it change with temperature, temperature will affect its measurement
1125
1126 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
1127
1128 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
1129
1130 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
1131
1132 [[image:image-20230113135125-2.png||height="136" width="1057"]]
1133 )))
1134
1135 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
1136
1137 Please send the data to us for check.
1138
1139
1140 == 5.5 Why does the LDDS75 sensor keep flashing blue? ==
1141
1142 This may be caused by a software firmware(≤1.1.6 version) bug, which we fixed in the latest firmware (>1.1.6 version)
1143
1144 The user can fix this problem via upgrade firmware.
1145
1146
1147 By default, The latest firmware value of POWERIC is 1, while the 3322 version requires POWERIC to be set to 0 in order to function properly
1148
1149
1150 * **//1. Check if the hardware version is 3322//**
1151
1152 If the sensor hardware version is 3322 or earlier, the user can change the POWERIC value to 0 after a firmware upgrade using one of the following methods
1153
1154 **a. Using AT command**
1155
1156 (% class="box infomessage" %)
1157 (((
1158 AT+POWERIC=0.
1159 )))
1160
1161
1162 **b. Using Downlink**
1163
1164 (% class="box infomessage" %)
1165 (((
1166 FF 00(AT+POWERIC=0).
1167 )))
1168
1169
1170 [[image:image-20240531090837-1.png]]
1171
1172
1173 Please check your hardware production date
1174
1175 The first two digits are the week of the year, and the last two digits are the year.
1176
1177 The number 3322 is the first batch we changed the power IC.
1178
1179
1180 = 6.  Order Info =
1181
1182
1183 Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1184
1185 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1186
1187 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1188 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1189 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1190 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1191 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1192 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1193 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1194 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1195
1196 (% style="color:blue" %)**YY**(%%): Battery Option
1197
1198 * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1199 * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1200
1201 = 7. ​ Packing Info =
1202
1203
1204 **Package Includes**:
1205
1206 * LDDS75 LoRaWAN Distance Detection Sensor x 1
1207
1208 **Dimension and weight**:
1209
1210 * Device Size: cm
1211 * Device Weight: g
1212 * Package Size / pcs : cm
1213 * Weight / pcs : g
1214
1215 = 8.  ​Support =
1216
1217
1218 * 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.
1219 * 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]].