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Version 79.3 by Xiaoling on 2023/06/13 14:31
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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-20230613140115-3.png||height="453" width="800"]]
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 * Liquid Level Measurement by Ultrasonic technology
49 * Measure through container, No need to contact Liquid
50 * Valid level range 20mm - 2000mm
51 * Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
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 == 1.3 Specification ==
61
62
63 (% style="color:#037691" %)**Common DC Characteristics:**
64
65 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
66 * Operating Temperature: -40 ~~ 85°C
67
68 (% style="color:#037691" %)**LoRa Spec:**
69
70 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
71 * Max +22 dBm constant RF output vs.
72 * RX sensitivity: down to -139 dBm.
73 * Excellent blocking immunity
74
75 (% style="color:#037691" %)**Battery:**
76
77 * Li/SOCI2 un-chargeable battery
78 * Capacity: 8500mAh
79 * Self-Discharge: <1% / Year @ 25°C
80 * Max continuously current: 130mA
81 * Max boost current: 2A, 1 second
82
83 (% style="color:#037691" %)**Power Consumption**
84
85 * Sleep Mode: 5uA @ 3.3v
86 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
87
88 == 1.4 Suitable Container & Liquid ==
89
90
91 * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
92 * Container shape is regular, and surface is smooth.
93 * Container Thickness:
94 ** Pure metal material.  2~~8mm, best is 3~~5mm
95 ** Pure non metal material: <10 mm
96 * Pure liquid without irregular deposition.(% style="display:none" %)
97
98
99 == 1.5 Install DDS20-LB ==
100
101
102 (% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
103
104 DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
105
106 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
107
108
109 (((
110 (% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
111 )))
112
113 (((
114 For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
115 )))
116
117 [[image:image-20230613143052-5.png]]
118
119
120 No polish needed if the container is shine metal surface without paint or non-metal container.
121
122 [[image:image-20230613143125-6.png]]
123
124
125 (((
126 (% style="color:blue" %)**Step3:   **(%%)Test the installation point.
127 )))
128
129 (((
130 Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
131 )))
132
133
134 (((
135 It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
136 )))
137
138 [[image:1655256160324-178.png||height="151" width="419"]][[image:image-20220615092327-13.png||height="146" width="260"]]
139
140
141 (((
142 After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
143 )))
144
145
146 (((
147 (% style="color:red" %)**LED Status:**
148 )))
149
150 * (((
151 Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
152 )))
153
154 * (((
155 (% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
156 )))
157 * (((
158 (% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
159 )))
160
161 (((
162 LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
163 )))
164
165
166 (((
167 (% style="color:red" %)**Note 2:**
168 )))
169
170 (((
171 (% style="color:red" %)**Ultrasonic coupling paste** (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
172 )))
173
174
175 (((
176 (% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
177 )))
178
179 (((
180 Prepare Eproxy AB glue.
181 )))
182
183 (((
184 Put Eproxy AB glue in the sensor and press it hard on the container installation point.
185 )))
186
187 (((
188 Reset DDS20-LB and see if the BLUE LED is slowly blinking.
189 )))
190
191 [[image:image-20220615091045-8.png||height="203" width="341"]] [[image:image-20220615091045-9.png||height="200" width="284"]]
192
193
194 (((
195 (% style="color:red" %)**Note 1:**
196 )))
197
198 (((
199 Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
200 )))
201
202
203 (((
204 (% style="color:red" %)**Note 2:**
205 )))
206
207 (((
208 (% style="color:red" %)**Eproxy AB glue**(%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
209 )))
210
211
212 == 1.6 Applications ==
213
214
215 * Smart liquid control solution.
216
217 * Smart liquefied gas solution.
218
219
220
221 == 1.7 Precautions ==
222
223
224 * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
225
226 * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
227
228 * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.(% style="display:none" %)
229
230
231 == 1.8 Sleep mode and working mode ==
232
233
234 (% 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.
235
236 (% 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.
237
238
239 == 1.9 Button & LEDs ==
240
241
242 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
243
244
245 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
246 |=(% 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**
247 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
248 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
249 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
250 )))
251 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
252 (% 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.
253 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
254 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.
255 )))
256 |(% 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.
257
258 == 1.10 BLE connection ==
259
260
261 DDS20-LB support BLE remote configure.
262
263 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:
264
265 * Press button to send an uplink
266 * Press button to active device.
267 * Device Power on or reset.
268
269 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
270
271
272 == 1.11 Pin Definitions ==
273
274 [[image:image-20230523174230-1.png]]
275
276
277 == 1.12 Mechanical ==
278
279
280 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
281
282
283 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
284
285
286 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
287
288
289 (% style="color:blue" %)**Probe Mechanical:**
290
291 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-1.png?rev=1.1||alt="image-20220615090910-1.png"]]
292
293
294 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
295
296
297 = 2. Configure DDS20-LB to connect to LoRaWAN network =
298
299 == 2.1 How it works ==
300
301
302 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.
303
304 (% style="display:none" %) (%%)
305
306 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
307
308
309 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.
310
311 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.
312
313 [[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
314
315
316 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
317
318 Each DDS45-LB is shipped with a sticker with the default device EUI as below:
319
320 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
321
322
323 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
324
325
326 (% style="color:blue" %)**Register the device**
327
328 [[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"]]
329
330
331 (% style="color:blue" %)**Add APP EUI and DEV EUI**
332
333 [[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"]]
334
335
336 (% style="color:blue" %)**Add APP EUI in the application**
337
338
339 [[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"]]
340
341
342 (% style="color:blue" %)**Add APP KEY**
343
344 [[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"]]
345
346
347 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
348
349
350 Press the button for 5 seconds to activate the DDS45-LB.
351
352 (% 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.
353
354 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
355
356
357 == 2.3  ​Uplink Payload ==
358
359
360 (((
361 DDS45-LB will uplink payload via LoRaWAN with below payload format: 
362 )))
363
364 (((
365 Uplink payload includes in total 8 bytes.
366 )))
367
368 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
369 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
370 **Size(bytes)**
371 )))|=(% 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**
372 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
373 [[Distance>>||anchor="H2.3.2A0Distance"]]
374 (unit: mm)
375 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
376 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
377 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
378
379 [[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"]]
380
381
382 === 2.3.1  Battery Info ===
383
384
385 Check the battery voltage for DDS45-LB.
386
387 Ex1: 0x0B45 = 2885mV
388
389 Ex2: 0x0B49 = 2889mV
390
391
392 === 2.3.2  Distance ===
393
394
395 (((
396 Get the distance. Flat object range 30mm - 4500mm.
397 )))
398
399 (((
400 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" %)** **
401
402 (% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
403 )))
404
405 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
406 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
407
408 === 2.3.3  Interrupt Pin ===
409
410
411 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.
412
413 **Example:**
414
415 0x00: Normal uplink packet.
416
417 0x01: Interrupt Uplink Packet.
418
419
420 === 2.3.4  DS18B20 Temperature sensor ===
421
422
423 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
424
425 **Example**:
426
427 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
428
429 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
430
431
432 === 2.3.5  Sensor Flag ===
433
434
435 (((
436 0x01: Detect Ultrasonic Sensor
437 )))
438
439 (((
440 0x00: No Ultrasonic Sensor
441 )))
442
443
444 === 2.3.6  Decode payload in The Things Network ===
445
446
447 While using TTN network, you can add the payload format to decode the payload.
448
449 [[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"]]
450
451 The payload decoder function for TTN V3 is here:
452
453 (((
454 DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
455 )))
456
457
458 == 2.4  Uplink Interval ==
459
460
461 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"]]
462
463
464 == 2.5  ​Show Data in DataCake IoT Server ==
465
466
467 (((
468 [[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:
469 )))
470
471
472 (((
473 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
474 )))
475
476 (((
477 (% 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:**
478 )))
479
480
481 [[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"]]
482
483
484 [[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"]]
485
486
487 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
488
489 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
490
491 [[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"]]
492
493
494 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
495
496 [[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"]]
497
498
499
500 == 2.6 Datalog Feature ==
501
502
503 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.
504
505
506 === 2.6.1 Ways to get datalog via LoRaWAN ===
507
508
509 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.
510
511 * (((
512 a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
513 )))
514 * (((
515 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.
516 )))
517
518 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
519
520 [[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"]]
521
522
523 === 2.6.2 Unix TimeStamp ===
524
525
526 DDS45-LB uses Unix TimeStamp format based on
527
528 [[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"]]
529
530 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
531
532 Below is the converter example
533
534 [[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"]]
535
536
537 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
538
539
540 === 2.6.3 Set Device Time ===
541
542
543 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
544
545 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).
546
547 (% 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.**
548
549
550 === 2.6.4 Poll sensor value ===
551
552
553 Users can poll sensor values based on timestamps. Below is the downlink command.
554
555 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
556 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
557 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
558 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
559
560 (((
561 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.
562 )))
563
564 (((
565 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"]]
566 )))
567
568 (((
569 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
570 )))
571
572 (((
573 Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
574 )))
575
576
577 == 2.7 Frequency Plans ==
578
579
580 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.
581
582 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
583
584
585 = 3. Configure DDS45-LB =
586
587 == 3.1 Configure Methods ==
588
589
590 DDS45-LB supports below configure method:
591
592 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
593
594 * 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]].
595
596 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
597
598 == 3.2 General Commands ==
599
600
601 These commands are to configure:
602
603 * General system settings like: uplink interval.
604
605 * LoRaWAN protocol & radio related command.
606
607 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
608
609 [[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/]]
610
611
612 == 3.3 Commands special design for DDS45-LB ==
613
614
615 These commands only valid for DDS45-LB, as below:
616
617
618 === 3.3.1 Set Transmit Interval Time ===
619
620
621 (((
622 Feature: Change LoRaWAN End Node Transmit Interval.
623 )))
624
625 (((
626 (% style="color:blue" %)**AT Command: AT+TDC**
627 )))
628
629 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
630 |=(% 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**
631 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
632 30000
633 OK
634 the interval is 30000ms = 30s
635 )))
636 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
637 OK
638 Set transmit interval to 60000ms = 60 seconds
639 )))
640
641 (((
642 (% style="color:blue" %)**Downlink Command: 0x01**
643 )))
644
645 (((
646 Format: Command Code (0x01) followed by 3 bytes time value.
647 )))
648
649 (((
650 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
651 )))
652
653 * (((
654 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
655 )))
656 * (((
657 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
658 )))
659
660 === 3.3.2 Set Interrupt Mode ===
661
662
663 Feature, Set Interrupt mode for PA8 of pin.
664
665 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
666
667 (% style="color:blue" %)**AT Command: AT+INTMOD**
668
669 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
670 |=(% 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**
671 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
672 0
673 OK
674 the mode is 0 =Disable Interrupt
675 )))
676 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
677 Set Transmit Interval
678 0. (Disable Interrupt),
679 ~1. (Trigger by rising and falling edge)
680 2. (Trigger by falling edge)
681 3. (Trigger by rising edge)
682 )))|(% style="width:157px" %)OK
683
684 (% style="color:blue" %)**Downlink Command: 0x06**
685
686 Format: Command Code (0x06) followed by 3 bytes.
687
688 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
689
690 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
691
692 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
693
694 = 4. Battery & Power Consumption =
695
696
697 DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
698
699 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
700
701
702 = 5. OTA Firmware update =
703
704
705 (% class="wikigeneratedid" %)
706 User can change firmware DDS45-LB to:
707
708 * Change Frequency band/ region.
709
710 * Update with new features.
711
712 * Fix bugs.
713
714 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
715
716 Methods to Update Firmware:
717
718 * (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/]]
719
720 * 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]]**.
721
722 = 6. FAQ =
723
724 == 6.1  What is the frequency plan for DDS45-LB? ==
725
726
727 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"]]
728
729
730 == 6.2  Can I use DDS45-LB in condensation environment? ==
731
732
733 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.
734
735
736 = 7.  Trouble Shooting =
737
738 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
739
740
741 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
742
743
744 == 7.2  AT Command input doesn't work ==
745
746
747 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.
748
749
750 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
751
752
753 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
754
755 2. Sensor wiring is disconnected
756
757 3. Not using the correct decoder
758
759
760 == 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 ==
761
762
763 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
764
765 2) Does it change with temperature, temperature will affect its measurement
766
767 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
768
769 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
770
771 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
772
773 [[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"]]
774
775
776 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
777
778 Please send the data to us for check.
779
780
781 = 8. Order Info =
782
783
784 Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
785
786 (% style="color:red" %)**XXX**(%%): **The default frequency band**
787
788 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
789
790 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
791
792 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
793
794 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
795
796 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
797
798 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
799
800 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
801
802 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
803
804 = 9. ​Packing Info =
805
806
807 (% style="color:#037691" %)**Package Includes**:
808
809 * DDS45-LB LoRaWAN Distance Detection Sensor x 1
810
811 (% style="color:#037691" %)**Dimension and weight**:
812
813 * Device Size: cm
814
815 * Device Weight: g
816
817 * Package Size / pcs : cm
818
819 * Weight / pcs : g
820
821 = 10. Support =
822
823
824 * 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.
825
826 * 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]].