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Version 70.31 by Xiaoling on 2023/06/13 10:07
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1 (% style="text-align:center" %)
2 [[image:image-20230612170349-1.png||height="656" width="656"]]
3
4
5
6
7 **Table of Contents：**
8
9 {{toc/}}
10
11
12
13
14
15
16 = 1. Introduction =
17
18 == 1.1 What is LoRaWAN Distance Detection Sensor ==
19
20
21 The Dragino DDS75-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 DDS75-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.
22
23 It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
24
25 The LoRa wireless technology used in DDS75-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.
26
27 DDS75-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
28
29 DDS75-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
30
31 Each DDS75-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.
32
33 [[image:image-20230612170943-2.png||height="525" width="912"]]
34
35
36 == 1.2 ​Features ==
37
38
39 * LoRaWAN 1.0.3 Class A
40 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
41 * Ultra-low power consumption
42 * Distance Detection by Ultrasonic technology
43 * Flat object range 280mm - 7500mm
44 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
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 DDS75-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
205 [[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-20220610172003-1.png?rev=1.1||alt="image-20220610172003-1.png"]]
206
207
208 [[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-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
209
210
211 [[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-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
212
213
214 = 2. Configure DDS75-LB to connect to LoRaWAN network =
215
216 == 2.1 How it works ==
217
218
219 The DDS75-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 DDS75-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
220
221 (% style="display:none" %) (%%)
222
223 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
224
225
226 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.
227
228 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.
229
230 [[image:image-20230612171032-3.png||height="492" width="855"]](% style="display:none" %)
231
232
233 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS75-LB.
234
235 Each DDS75-LB is shipped with a sticker with the default device EUI as below:
236
237 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
238
239
240 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
241
242
243 (% style="color:blue" %)**Register the device**
244
245 [[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"]]
246
247
248 (% style="color:blue" %)**Add APP EUI and DEV EUI**
249
250 [[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"]]
251
252
253 (% style="color:blue" %)**Add APP EUI in the application**
254
255
256 [[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"]]
257
258
259 (% style="color:blue" %)**Add APP KEY**
260
261 [[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"]]
262
263
264 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS75-LB
265
266
267 Press the button for 5 seconds to activate the DDS75-LB.
268
269 (% 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.
270
271 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
272
273
274 == 2.3  ​Uplink Payload ==
275
276
277 (((
278 DDS75-LB will uplink payload via LoRaWAN with below payload format: 
279 )))
280
281 (((
282 Uplink payload includes in total 8 bytes.
283 )))
284
285 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
286 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
287 **Size(bytes)**
288 )))|=(% 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**
289 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
290 [[Distance>>||anchor="H2.3.2A0Distance"]]
291 (unit: mm)
292 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
293 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
294 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
295
296 [[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"]]
297
298
299 === 2.3.1  Battery Info ===
300
301
302 Check the battery voltage for DDS75-LB.
303
304 Ex1: 0x0B45 = 2885mV
305
306 Ex2: 0x0B49 = 2889mV
307
308
309 === 2.3.2  Distance ===
310
311
312 (((
313 Get the distance. Flat object range 280mm - 7500mm.
314 )))
315
316 (((
317 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" %)** **
318
319 (% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
320 )))
321
322
323 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
324 * If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. All value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
325
326
327
328 === 2.3.3  Interrupt Pin ===
329
330
331 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.
332
333 **Example:**
334
335 0x00: Normal uplink packet.
336
337 0x01: Interrupt Uplink Packet.
338
339
340 === 2.3.4  DS18B20 Temperature sensor ===
341
342
343 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
344
345 **Example**:
346
347 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
348
349 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
350
351
352 === 2.3.5  Sensor Flag ===
353
354
355 (((
356 0x01: Detect Ultrasonic Sensor
357 )))
358
359 (((
360 0x00: No Ultrasonic Sensor
361 )))
362
363
364 === 2.3.6  Decode payload in The Things Network ===
365
366
367 While using TTN network, you can add the payload format to decode the payload.
368
369 [[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"]]
370
371 The payload decoder function for TTN V3 is here:
372
373 (((
374 DDS75-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
375 )))
376
377
378 == 2.4  Uplink Interval ==
379
380
381 The DDS75-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"]]
382
383
384 == 2.5  ​Show Data in DataCake IoT Server ==
385
386
387 (((
388 [[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:
389 )))
390
391
392 (((
393 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
394 )))
395
396 (((
397 (% 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:**
398 )))
399
400
401 [[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"]]
402
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/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
405
406
407 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
408
409 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS75-LB and add DevEUI.**
410
411 [[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"]]
412
413
414 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
415
416 [[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"]]
417
418
419
420 == 2.6 Datalog Feature ==
421
422
423 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS75-LB will store the reading for future retrieving purposes.
424
425
426 === 2.6.1 Ways to get datalog via LoRaWAN ===
427
428
429 Set PNACKMD=1, DDS75-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS75-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.
430
431 * (((
432 a) DDS75-LB will do an ACK check for data records sending to make sure every data arrive server.
433 )))
434 * (((
435 b) DDS75-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS75-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 DDS75-LB gets a ACK, DDS75-LB will consider there is a network connection and resend all NONE-ACK messages.
436 )))
437
438 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
439
440 [[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"]]
441
442
443 === 2.6.2 Unix TimeStamp ===
444
445
446 DDS75-LB uses Unix TimeStamp format based on
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-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
449
450 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
451
452 Below is the converter example
453
454 [[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"]]
455
456
457 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
458
459
460 === 2.6.3 Set Device Time ===
461
462
463 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
464
465 Once DDS75-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS75-LB. If DDS75-LB fails to get the time from the server, DDS75-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
466
467 (% 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.**
468
469
470 === 2.6.4 Poll sensor value ===
471
472
473 Users can poll sensor values based on timestamps. Below is the downlink command.
474
475 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
476 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
477 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
478 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
479
480 (((
481 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.
482 )))
483
484 (((
485 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"]]
486 )))
487
488 (((
489 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
490 )))
491
492 (((
493 Uplink Internal =5s，means DDS75-LB will send one packet every 5s. range 5~~255s.
494 )))
495
496
497 == 2.7 Frequency Plans ==
498
499
500 The DDS75-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.
501
502 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
503
504
505 = 3. Configure DDS75-LB =
506
507 == 3.1 Configure Methods ==
508
509
510 DDS75-LB supports below configure method:
511
512 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
513
514 * 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]].
515
516 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
517
518
519
520 == 3.2 General Commands ==
521
522
523 These commands are to configure:
524
525 * General system settings like: uplink interval.
526
527 * LoRaWAN protocol & radio related command.
528
529 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
530
531 [[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/]]
532
533
534 == 3.3 Commands special design for DDS75-LB ==
535
536
537 These commands only valid for DDS75-LB, as below:
538
539
540 === 3.3.1 Set Transmit Interval Time ===
541
542
543 (((
544 Feature: Change LoRaWAN End Node Transmit Interval.
545 )))
546
547 (((
548 (% style="color:blue" %)**AT Command: AT+TDC**
549 )))
550
551 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
552 |=(% 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**
553 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
554 30000
555 OK
556 the interval is 30000ms = 30s
557 )))
558 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
559 OK
560 Set transmit interval to 60000ms = 60 seconds
561 )))
562
563 (((
564 (% style="color:blue" %)**Downlink Command: 0x01**
565 )))
566
567 (((
568 Format: Command Code (0x01) followed by 3 bytes time value.
569 )))
570
571 (((
572 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
573 )))
574
575 * (((
576 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
577 )))
578 * (((
579 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
580
581
582
583 )))
584
585 === 3.3.2 Set Interrupt Mode ===
586
587
588 Feature, Set Interrupt mode for PA8 of pin.
589
590 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
591
592 (% style="color:blue" %)**AT Command: AT+INTMOD**
593
594 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
595 |=(% 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**
596 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
597 0
598 OK
599 the mode is 0 =Disable Interrupt
600 )))
601 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
602 Set Transmit Interval
603 0. (Disable Interrupt),
604 ~1. (Trigger by rising and falling edge)
605 2. (Trigger by falling edge)
606 3. (Trigger by rising edge)
607 )))|(% style="width:157px" %)OK
608
609 (% style="color:blue" %)**Downlink Command: 0x06**
610
611 Format: Command Code (0x06) followed by 3 bytes.
612
613 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
614
615 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
616
617 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
618
619
620
621 = 4. Battery & Power Consumption =
622
623
624 DDS75-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
625
626 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
627
628
629 = 5. OTA Firmware update =
630
631
632 (% class="wikigeneratedid" %)
633 User can change firmware DDS75-LB to:
634
635 * Change Frequency band/ region.
636
637 * Update with new features.
638
639 * Fix bugs.
640
641 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/7la95mae0fn03xe/AACtzs-32m22TLb75B-iIr-Qa?dl=0]]**
642
643 Methods to Update Firmware:
644
645 * (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/]]
646
647 * 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]]**.
648
649
650
651 = 6. FAQ =
652
653 == 6.1  What is the frequency plan for DDS75-LB? ==
654
655
656 DDS75-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"]]
657
658
659 == 6.2  Can I use DDS75-LB in condensation environment? ==
660
661
662 DDS75-LB is not suitable to be used in condensation environment. Condensation on the DDS75-LB probe will affect the reading and always got 0.
663
664
665 = 7.  Trouble Shooting =
666
667 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
668
669
670 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
671
672
673 == 7.2  AT Command input doesn't work ==
674
675
676 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.
677
678
679 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
680
681
682 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
683
684 2. Sensor wiring is disconnected
685
686 3. Not using the correct decoder
687
688
689 == 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 ==
690
691
692 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
693
694 2) Does it change with temperature, temperature will affect its measurement
695
696 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
697
698 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
699
700 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
701
702 [[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"]]
703
704
705 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
706
707 Please send the data to us for check.
708
709
710 = 8. Order Info =
711
712
713 Part Number: (% style="color:blue" %)**DDS75-LB-XXX**
714
715 (% style="color:red" %)**XXX**(%%): **The default frequency band**
716
717 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
718
719 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
720
721 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
722
723 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
724
725 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
726
727 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
728
729 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
730
731 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
732
733
734
735 = 9. ​Packing Info =
736
737
738 (% style="color:#037691" %)**Package Includes**:
739
740 * DDS75-LB LoRaWAN Distance Detection Sensor x 1
741
742 (% style="color:#037691" %)**Dimension and weight**:
743
744 * Device Size: cm
745
746 * Device Weight: g
747
748 * Package Size / pcs : cm
749
750 * Weight / pcs : g
751
752
753
754 = 10. Support =
755
756
757 * 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.
758
759 * 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]].