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Version 76.1 by Xiaoling on 2023/06/13 14:01
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1 (% style="text-align:center" %)
2 [[image:image-20230613133716-2.png||height="717" width="717"]]
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11 **Table of Contents：**
12
13 {{toc/}}
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19
20 = 1. Introduction =
21
22 == 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
23
24
25 The Dragino DDS20-LB is a (% style="color:blue" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:blue" %)**none-contact method **(%%)to measure the (% style="color:blue" %)**height of liquid**(%%) in a container without opening the container, and send the value via LoRaWAN network to IoT Server.
26
27 The DDS20-LB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation. 
28
29 DDS20-LB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-LB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**(%%), (% style="color:blue" %)**strong acids**(%%), (% style="color:blue" %)**strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
30
31 The LoRa wireless technology used in DDS20-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.
32
33 DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34
35 DDS20-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
36
37 Each DDS20-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.
38
39 [[image:image-20230613102459-3.png||height="476" width="855"]]
40
41
42 == 1.2 ​Features ==
43
44
45 * LoRaWAN 1.0.3 Class A
46 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
47 * Ultra-low power consumption
48 * Distance Detection by Ultrasonic technology
49 * Flat object range 30mm - 4500mm
50 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
51 * Measure Angle: 60°
52 * Cable Length : 25cm
53 * Support Bluetooth v5.1 and LoRaWAN remote configure
54 * Support wireless OTA update firmware
55 * AT Commands to change parameters
56 * Downlink to change configure
57 * IP66 Waterproof Enclosure
58 * 8500mAh Battery for long term use
59
60
61 == 1.3 Specification ==
62
63
64 (% style="color:#037691" %)**Common DC Characteristics:**
65
66 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
67 * Operating Temperature: -40 ~~ 85°C
68
69 (% style="color:#037691" %)**LoRa Spec:**
70
71 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
72 * Max +22 dBm constant RF output vs.
73 * RX sensitivity: down to -139 dBm.
74 * Excellent blocking immunity
75
76 (% style="color:#037691" %)**Battery:**
77
78 * Li/SOCI2 un-chargeable battery
79 * Capacity: 8500mAh
80 * Self-Discharge: <1% / Year @ 25°C
81 * Max continuously current: 130mA
82 * Max boost current: 2A, 1 second
83
84 (% style="color:#037691" %)**Power Consumption**
85
86 * Sleep Mode: 5uA @ 3.3v
87 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
88
89
90 == 1.4 Rated environmental conditions ==
91
92
93 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
94 |(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
95 **Minimum value**
96 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
97 **Typical value**
98 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
99 **Maximum value**
100 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
101 |(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
102 |(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
103 |(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
104 |(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
105
106
107
108 )))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
109
110 (((
111 (% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
112
113 (% 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)**
114
115
116 )))
117
118 == 1.5 Effective measurement range Reference beam pattern ==
119
120
121 (% 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.**
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/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
124
125
126 (% 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.**
127
128 [[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"]]
129
130
131 == 1.6 Applications ==
132
133
134 * Horizontal distance measurement
135 * Liquid level measurement
136 * Parking management system
137 * Object proximity and presence detection
138 * Intelligent trash can management system
139 * Robot obstacle avoidance
140 * Automatic control
141 * Sewer
142 * Bottom water level monitoring
143
144
145 == 1.7 Sleep mode and working mode ==
146
147
148 (% 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.
149
150 (% 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.
151
152
153 == 1.8 Button & LEDs ==
154
155
156 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
157
158
159 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
160 |=(% 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**
161 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
162 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
163 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
164 )))
165 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
166 (% 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.
167 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
168 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.
169 )))
170 |(% 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.
171
172
173 == 1.9 BLE connection ==
174
175
176 DDS45-LB support BLE remote configure.
177
178
179 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:
180
181 * Press button to send an uplink
182 * Press button to active device.
183 * Device Power on or reset.
184
185 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
186
187
188 == 1.10 Pin Definitions ==
189
190 [[image:image-20230523174230-1.png]]
191
192
193 == 1.11 Mechanical ==
194
195
196 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
197
198
199 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
200
201
202 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
203
204
205 (% style="color:blue" %)**Probe Mechanical:**
206
207 [[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"]]
208
209
210 = 2. Configure DDS45-LB to connect to LoRaWAN network =
211
212 == 2.1 How it works ==
213
214
215 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.
216
217 (% style="display:none" %) (%%)
218
219 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
220
221
222 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.
223
224 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.
225
226 [[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
227
228
229 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
230
231 Each DDS45-LB is shipped with a sticker with the default device EUI as below:
232
233 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
234
235
236 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
237
238
239 (% style="color:blue" %)**Register the device**
240
241 [[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"]]
242
243
244 (% style="color:blue" %)**Add APP EUI and DEV EUI**
245
246 [[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"]]
247
248
249 (% style="color:blue" %)**Add APP EUI in the application**
250
251
252 [[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"]]
253
254
255 (% style="color:blue" %)**Add APP KEY**
256
257 [[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"]]
258
259
260 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
261
262
263 Press the button for 5 seconds to activate the DDS45-LB.
264
265 (% 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.
266
267 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
268
269
270 == 2.3  ​Uplink Payload ==
271
272
273 (((
274 DDS45-LB will uplink payload via LoRaWAN with below payload format: 
275 )))
276
277 (((
278 Uplink payload includes in total 8 bytes.
279 )))
280
281 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
282 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
283 **Size(bytes)**
284 )))|=(% 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**
285 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
286 [[Distance>>||anchor="H2.3.2A0Distance"]]
287 (unit: mm)
288 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
289 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
290 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
291
292 [[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"]]
293
294
295 === 2.3.1  Battery Info ===
296
297
298 Check the battery voltage for DDS45-LB.
299
300 Ex1: 0x0B45 = 2885mV
301
302 Ex2: 0x0B49 = 2889mV
303
304
305 === 2.3.2  Distance ===
306
307
308 (((
309 Get the distance. Flat object range 30mm - 4500mm.
310 )))
311
312 (((
313 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" %)** **
314
315 (% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
316 )))
317
318 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
319 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
320
321
322 === 2.3.3  Interrupt Pin ===
323
324
325 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.
326
327 **Example:**
328
329 0x00: Normal uplink packet.
330
331 0x01: Interrupt Uplink Packet.
332
333
334 === 2.3.4  DS18B20 Temperature sensor ===
335
336
337 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
338
339 **Example**:
340
341 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
342
343 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
344
345
346 === 2.3.5  Sensor Flag ===
347
348
349 (((
350 0x01: Detect Ultrasonic Sensor
351 )))
352
353 (((
354 0x00: No Ultrasonic Sensor
355 )))
356
357
358 === 2.3.6  Decode payload in The Things Network ===
359
360
361 While using TTN network, you can add the payload format to decode the payload.
362
363 [[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"]]
364
365 The payload decoder function for TTN V3 is here:
366
367 (((
368 DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
369 )))
370
371
372 == 2.4  Uplink Interval ==
373
374
375 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"]]
376
377
378 == 2.5  ​Show Data in DataCake IoT Server ==
379
380
381 (((
382 [[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:
383 )))
384
385
386 (((
387 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
388 )))
389
390 (((
391 (% 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:**
392 )))
393
394
395 [[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"]]
396
397
398 [[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"]]
399
400
401 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
402
403 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
404
405 [[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"]]
406
407
408 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
409
410 [[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"]]
411
412
413
414 == 2.6 Datalog Feature ==
415
416
417 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.
418
419
420 === 2.6.1 Ways to get datalog via LoRaWAN ===
421
422
423 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.
424
425 * (((
426 a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
427 )))
428 * (((
429 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.
430 )))
431
432 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
433
434 [[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"]]
435
436
437 === 2.6.2 Unix TimeStamp ===
438
439
440 DDS45-LB uses Unix TimeStamp format based on
441
442 [[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"]]
443
444 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
445
446 Below is the converter example
447
448 [[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"]]
449
450
451 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
452
453
454 === 2.6.3 Set Device Time ===
455
456
457 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
458
459 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).
460
461 (% 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.**
462
463
464 === 2.6.4 Poll sensor value ===
465
466
467 Users can poll sensor values based on timestamps. Below is the downlink command.
468
469 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
470 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
471 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
472 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
473
474 (((
475 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.
476 )))
477
478 (((
479 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"]]
480 )))
481
482 (((
483 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
484 )))
485
486 (((
487 Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
488 )))
489
490
491 == 2.7 Frequency Plans ==
492
493
494 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.
495
496 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
497
498
499 = 3. Configure DDS45-LB =
500
501 == 3.1 Configure Methods ==
502
503
504 DDS45-LB supports below configure method:
505
506 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
507
508 * 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]].
509
510 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
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 === 3.3.2 Set Interrupt Mode ===
577
578
579 Feature, Set Interrupt mode for PA8 of pin.
580
581 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
582
583 (% style="color:blue" %)**AT Command: AT+INTMOD**
584
585 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
586 |=(% 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**
587 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
588 0
589 OK
590 the mode is 0 =Disable Interrupt
591 )))
592 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
593 Set Transmit Interval
594 0. (Disable Interrupt),
595 ~1. (Trigger by rising and falling edge)
596 2. (Trigger by falling edge)
597 3. (Trigger by rising edge)
598 )))|(% style="width:157px" %)OK
599
600 (% style="color:blue" %)**Downlink Command: 0x06**
601
602 Format: Command Code (0x06) followed by 3 bytes.
603
604 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
605
606 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
607
608 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
609
610
611 = 4. Battery & Power Consumption =
612
613
614 DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
615
616 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
617
618
619 = 5. OTA Firmware update =
620
621
622 (% class="wikigeneratedid" %)
623 User can change firmware DDS45-LB to:
624
625 * Change Frequency band/ region.
626
627 * Update with new features.
628
629 * Fix bugs.
630
631 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
632
633 Methods to Update Firmware:
634
635 * (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/]]
636
637 * 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]]**.
638
639
640 = 6. FAQ =
641
642 == 6.1  What is the frequency plan for DDS45-LB? ==
643
644
645 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"]]
646
647
648 == 6.2  Can I use DDS45-LB in condensation environment? ==
649
650
651 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.
652
653
654 = 7.  Trouble Shooting =
655
656 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
657
658
659 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
660
661
662 == 7.2  AT Command input doesn't work ==
663
664
665 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.
666
667
668 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
669
670
671 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
672
673 2. Sensor wiring is disconnected
674
675 3. Not using the correct decoder
676
677
678 == 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 ==
679
680
681 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
682
683 2) Does it change with temperature, temperature will affect its measurement
684
685 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
686
687 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
688
689 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
690
691 [[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"]]
692
693
694 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
695
696 Please send the data to us for check.
697
698
699 = 8. Order Info =
700
701
702 Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
703
704 (% style="color:red" %)**XXX**(%%): **The default frequency band**
705
706 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
707
708 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
709
710 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
711
712 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
713
714 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
715
716 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
717
718 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
719
720 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
721
722
723 = 9. ​Packing Info =
724
725
726 (% style="color:#037691" %)**Package Includes**:
727
728 * DDS45-LB LoRaWAN Distance Detection Sensor x 1
729
730 (% style="color:#037691" %)**Dimension and weight**:
731
732 * Device Size: cm
733
734 * Device Weight: g
735
736 * Package Size / pcs : cm
737
738 * Weight / pcs : g
739
740
741 = 10. Support =
742
743
744 * 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.
745
746 * 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]].