Skip to Content
Version 73.9 by Xiaoling on 2023/06/13 11:25
Show last authors
1 (% style="text-align:center" %)
2 [[image:image-20230613100900-1.png||height="650" width="650"]]
3
4
5
6 **Table of Contents：**
7
8 {{toc/}}
9
10
11
12
13
14
15 = 1. Introduction =
16
17 == 1.1 What is LoRaWAN Distance Detection Sensor ==
18
19
20 The Dragino DDS45-LB is a (% style="color:blue" %)** 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:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-LB 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.
21
22 It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
23
24 The LoRa wireless technology used in DDS45-LB 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.
25
26 DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
27
28 DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
29
30 Each DDS45-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
31
32 [[image:image-20230613102459-3.png||height="476" width="855"]]
33
34
35 == 1.2 ​Features ==
36
37
38 * LoRaWAN 1.0.3 Class A
39 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
40 * Ultra-low power consumption
41 * Distance Detection by Ultrasonic technology
42 * Flat object range 30mm - 4500mm
43 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
44 * Measure Angle: 60°
45 * Cable Length : 25cm
46 * Support Bluetooth v5.1 and LoRaWAN remote configure
47 * Support wireless OTA update firmware
48 * AT Commands to change parameters
49 * Downlink to change configure
50 * IP66 Waterproof Enclosure
51 * 8500mAh Battery for long term use
52
53
54
55 == 1.3 Specification ==
56
57
58 (% style="color:#037691" %)**Common DC Characteristics:**
59
60 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
61 * Operating Temperature: -40 ~~ 85°C
62
63 (% style="color:#037691" %)**LoRa Spec:**
64
65 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
66 * Max +22 dBm constant RF output vs.
67 * RX sensitivity: down to -139 dBm.
68 * Excellent blocking immunity
69
70 (% style="color:#037691" %)**Battery:**
71
72 * Li/SOCI2 un-chargeable battery
73 * Capacity: 8500mAh
74 * Self-Discharge: <1% / Year @ 25°C
75 * Max continuously current: 130mA
76 * Max boost current: 2A, 1 second
77
78 (% style="color:#037691" %)**Power Consumption**
79
80 * Sleep Mode: 5uA @ 3.3v
81 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82
83
84
85 == 1.4 Rated environmental conditions ==
86
87
88 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
89 |(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
90 **Minimum value**
91 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
92 **Typical value**
93 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
94 **Maximum value**
95 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
96 |(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
97 |(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
98 |(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
99 |(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
100
101
102
103 )))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
104
105 (((
106 (% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
107
108 (% style="color:red" %)** 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)**
109
110
111 )))
112
113 == 1.5 Effective measurement range Reference beam pattern ==
114
115
116 (% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
117
118 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
119
120
121 (% style="color:blue" %)**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.**
122
123 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]]
124
125
126 == 1.6 Applications ==
127
128
129 * Horizontal distance measurement
130 * Liquid level measurement
131 * Parking management system
132 * Object proximity and presence detection
133 * Intelligent trash can management system
134 * Robot obstacle avoidance
135 * Automatic control
136 * Sewer
137 * Bottom water level monitoring
138
139
140
141 == 1.7 Sleep mode and working mode ==
142
143
144 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
145
146 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
147
148
149 == 1.8 Button & LEDs ==
150
151
152 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
153
154
155 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
156 |=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
157 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
158 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
159 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
160 )))
161 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
162 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
163 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
164 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
165 )))
166 |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
167
168
169
170 == 1.9 BLE connection ==
171
172
173 DDS45-LB support BLE remote configure.
174
175
176 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
177
178 * Press button to send an uplink
179 * Press button to active device.
180 * Device Power on or reset.
181
182 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
183
184
185 == 1.10 Pin Definitions ==
186
187 [[image:image-20230523174230-1.png]]
188
189
190 == 1.11 Mechanical ==
191
192
193 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
194
195
196 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
197
198
199 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
200
201
202 (% style="color:blue" %)**Probe Mechanical:**
203
204 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1||alt="1654915562090-396.png"]]
205
206
207 = 2. Configure DDS45-LB to connect to LoRaWAN network =
208
209 == 2.1 How it works ==
210
211
212 The DDS45-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS45-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
213
214 (% style="display:none" %) (%%)
215
216 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
217
218
219 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 [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
220
221 The LPS8v2 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.
222
223 [[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
224
225
226 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
227
228 Each DDS45-LB is shipped with a sticker with the default device EUI as below:
229
230 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
231
232
233 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
234
235
236 (% style="color:blue" %)**Register the device**
237
238 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
239
240
241 (% style="color:blue" %)**Add APP EUI and DEV EUI**
242
243 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
244
245
246 (% style="color:blue" %)**Add APP EUI in the application**
247
248
249 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
250
251
252 (% style="color:blue" %)**Add APP KEY**
253
254 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
255
256
257 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
258
259
260 Press the button for 5 seconds to activate the DDS45-LB.
261
262 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
263
264 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
265
266
267 == 2.3  ​Uplink Payload ==
268
269
270 (((
271 DDS45-LB will uplink payload via LoRaWAN with below payload format: 
272 )))
273
274 (((
275 Uplink payload includes in total 8 bytes.
276 )))
277
278 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
279 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
280 **Size(bytes)**
281 )))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
282 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
283 [[Distance>>||anchor="H2.3.2A0Distance"]]
284 (unit: mm)
285 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
286 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
287 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
288
289 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
290
291
292 === 2.3.1  Battery Info ===
293
294
295 Check the battery voltage for DDS45-LB.
296
297 Ex1: 0x0B45 = 2885mV
298
299 Ex2: 0x0B49 = 2889mV
300
301
302 === 2.3.2  Distance ===
303
304
305 (((
306 Get the distance. Flat object range 30mm - 4500mm.
307 )))
308
309 (((
310 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" %)** **
311
312 (% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
313 )))
314
315
316 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
317 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
318
319
320
321 === 2.3.3  Interrupt Pin ===
322
323
324 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
325
326 **Example:**
327
328 0x00: Normal uplink packet.
329
330 0x01: Interrupt Uplink Packet.
331
332
333 === 2.3.4  DS18B20 Temperature sensor ===
334
335
336 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
337
338 **Example**:
339
340 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
341
342 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
343
344
345 === 2.3.5  Sensor Flag ===
346
347
348 (((
349 0x01: Detect Ultrasonic Sensor
350 )))
351
352 (((
353 0x00: No Ultrasonic Sensor
354 )))
355
356
357 === 2.3.6  Decode payload in The Things Network ===
358
359
360 While using TTN network, you can add the payload format to decode the payload.
361
362 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
363
364 The payload decoder function for TTN V3 is here:
365
366 (((
367 DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
368 )))
369
370
371 == 2.4  Uplink Interval ==
372
373
374 The DDS45-LB 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>>||anchor="H3.3.1SetTransmitIntervalTime"]]
375
376
377 == 2.5  ​Show Data in DataCake IoT Server ==
378
379
380 (((
381 [[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:
382 )))
383
384
385 (((
386 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
387 )))
388
389 (((
390 (% 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:**
391 )))
392
393
394 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
395
396
397 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
398
399
400 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
401
402 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
403
404 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
405
406
407 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
408
409 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
410
411
412
413 == 2.6 Datalog Feature ==
414
415
416 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS45-LB will store the reading for future retrieving purposes.
417
418
419 === 2.6.1 Ways to get datalog via LoRaWAN ===
420
421
422 Set PNACKMD=1, DDS45-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS45-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
423
424 * (((
425 a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
426 )))
427 * (((
428 b) DDS45-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS45-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS45-LB gets a ACK, DDS45-LB will consider there is a network connection and resend all NONE-ACK messages.
429 )))
430
431 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
432
433 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
434
435
436 === 2.6.2 Unix TimeStamp ===
437
438
439 DDS45-LB uses Unix TimeStamp format based on
440
441 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
442
443 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
444
445 Below is the converter example
446
447 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
448
449
450 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
451
452
453 === 2.6.3 Set Device Time ===
454
455
456 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
457
458 Once DDS45-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS45-LB. If DDS45-LB fails to get the time from the server, DDS45-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
459
460 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
461
462
463 === 2.6.4 Poll sensor value ===
464
465
466 Users can poll sensor values based on timestamps. Below is the downlink command.
467
468 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
469 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
470 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
471 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
472
473 (((
474 Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
475 )))
476
477 (((
478 For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
479 )))
480
481 (((
482 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
483 )))
484
485 (((
486 Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
487 )))
488
489
490 == 2.7 Frequency Plans ==
491
492
493 The DDS45-LB 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.
494
495 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
496
497
498 = 3. Configure DDS45-LB =
499
500 == 3.1 Configure Methods ==
501
502
503 DDS45-LB supports below configure method:
504
505 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
506
507 * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
508
509 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
510
511
512
513 == 3.2 General Commands ==
514
515
516 These commands are to configure:
517
518 * General system settings like: uplink interval.
519
520 * LoRaWAN protocol & radio related command.
521
522 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
523
524 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
525
526
527 == 3.3 Commands special design for DDS45-LB ==
528
529
530 These commands only valid for DDS45-LB, as below:
531
532
533 === 3.3.1 Set Transmit Interval Time ===
534
535
536 (((
537 Feature: Change LoRaWAN End Node Transmit Interval.
538 )))
539
540 (((
541 (% style="color:blue" %)**AT Command: AT+TDC**
542 )))
543
544 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
545 |=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
546 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
547 30000
548 OK
549 the interval is 30000ms = 30s
550 )))
551 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
552 OK
553 Set transmit interval to 60000ms = 60 seconds
554 )))
555
556 (((
557 (% style="color:blue" %)**Downlink Command: 0x01**
558 )))
559
560 (((
561 Format: Command Code (0x01) followed by 3 bytes time value.
562 )))
563
564 (((
565 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
566 )))
567
568 * (((
569 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
570 )))
571 * (((
572 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
573 )))
574
575
576
577 === 3.3.2 Set Interrupt Mode ===
578
579
580 Feature, Set Interrupt mode for PA8 of pin.
581
582 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
583
584 (% style="color:blue" %)**AT Command: AT+INTMOD**
585
586 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
587 |=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
588 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
589 0
590 OK
591 the mode is 0 =Disable Interrupt
592 )))
593 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
594 Set Transmit Interval
595 0. (Disable Interrupt),
596 ~1. (Trigger by rising and falling edge)
597 2. (Trigger by falling edge)
598 3. (Trigger by rising edge)
599 )))|(% style="width:157px" %)OK
600
601 (% style="color:blue" %)**Downlink Command: 0x06**
602
603 Format: Command Code (0x06) followed by 3 bytes.
604
605 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
606
607 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
608
609 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
610
611
612
613 = 4. Battery & Power Consumption =
614
615
616 DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
617
618 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
619
620
621 = 5. OTA Firmware update =
622
623
624 (% class="wikigeneratedid" %)
625 User can change firmware DDS45-LB to:
626
627 * Change Frequency band/ region.
628
629 * Update with new features.
630
631 * Fix bugs.
632
633 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
634
635 Methods to Update Firmware:
636
637 * (Recommanded way) OTA firmware update via wireless:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
638
639 * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
640
641
642
643 = 6. FAQ =
644
645 == 6.1  What is the frequency plan for DDS45-LB? ==
646
647
648 DDS45-LB 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"]]
649
650
651 == 6.2  Can I use DDS45-LB in condensation environment? ==
652
653
654 DDS45-LB is not suitable to be used in condensation environment. Condensation on the DDS45-LB probe will affect the reading and always got 0.
655
656
657 = 7.  Trouble Shooting =
658
659 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
660
661
662 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
663
664
665 == 7.2  AT Command input doesn't work ==
666
667
668 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:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
669
670
671 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
672
673
674 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
675
676 2. Sensor wiring is disconnected
677
678 3. Not using the correct decoder
679
680
681 == 7.4  Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
682
683
684 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
685
686 2) Does it change with temperature, temperature will affect its measurement
687
688 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
689
690 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
691
692 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
693
694 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20230113135125-2.png?width=1057&height=136&rev=1.1||alt="image-20230113135125-2.png"]]
695
696
697 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
698
699 Please send the data to us for check.
700
701
702 = 8. Order Info =
703
704
705 Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
706
707 (% style="color:red" %)**XXX**(%%): **The default frequency band**
708
709 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
710
711 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
712
713 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
714
715 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
716
717 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
718
719 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
720
721 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
722
723 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
724
725
726
727 = 9. ​Packing Info =
728
729
730 (% style="color:#037691" %)**Package Includes**:
731
732 * DDS45-LB LoRaWAN Distance Detection Sensor x 1
733
734 (% style="color:#037691" %)**Dimension and weight**:
735
736 * Device Size: cm
737
738 * Device Weight: g
739
740 * Package Size / pcs : cm
741
742 * Weight / pcs : g
743
744
745
746 = 10. Support =
747
748
749 * 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.
750
751 * 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.cc>>mailto:Support@dragino.cc]].