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Version 79.2 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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10
11 **Table of Contents：**
12
13 {{toc/}}
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18
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 (((
127 (% style="color:blue" %)**Step3:   **(%%)Test the installation point.
128 )))
129
130 (((
131 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.
132 )))
133
134
135 (((
136 It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
137 )))
138
139 [[image:1655256160324-178.png||height="151" width="419"]][[image:image-20220615092327-13.png||height="146" width="260"]]
140
141
142 (((
143 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.
144 )))
145
146
147 (((
148 (% style="color:red" %)**LED Status:**
149 )))
150
151 * (((
152 Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
153 )))
154
155 * (((
156 (% 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.
157 )))
158 * (((
159 (% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
160 )))
161
162 (((
163 LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
164 )))
165
166
167 (((
168 (% style="color:red" %)**Note 2:**
169 )))
170
171 (((
172 (% 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.
173 )))
174
175
176 (((
177 (% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
178 )))
179
180 (((
181 Prepare Eproxy AB glue.
182 )))
183
184 (((
185 Put Eproxy AB glue in the sensor and press it hard on the container installation point.
186 )))
187
188 (((
189 Reset DDS20-LB and see if the BLUE LED is slowly blinking.
190 )))
191
192 [[image:image-20220615091045-8.png||height="203" width="341"]] [[image:image-20220615091045-9.png||height="200" width="284"]]
193
194
195 (((
196 (% style="color:red" %)**Note 1:**
197 )))
198
199 (((
200 Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
201 )))
202
203
204 (((
205 (% style="color:red" %)**Note 2:**
206 )))
207
208 (((
209 (% 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.
210 )))
211
212
213 == 1.6 Applications ==
214
215
216 * Smart liquid control solution.
217
218 * Smart liquefied gas solution.
219
220
221
222 == 1.7 Precautions ==
223
224
225 * 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.
226
227 * 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.
228
229 * 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" %)
230
231
232 == 1.8 Sleep mode and working mode ==
233
234
235 (% 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.
236
237 (% 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.
238
239
240 == 1.9 Button & LEDs ==
241
242
243 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
244
245
246 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
247 |=(% 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**
248 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
249 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
250 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
251 )))
252 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
253 (% 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.
254 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
255 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.
256 )))
257 |(% 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.
258
259 == 1.10 BLE connection ==
260
261
262 DDS20-LB support BLE remote configure.
263
264 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:
265
266 * Press button to send an uplink
267 * Press button to active device.
268 * Device Power on or reset.
269
270 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
271
272
273 == 1.11 Pin Definitions ==
274
275 [[image:image-20230523174230-1.png]]
276
277
278 == 1.12 Mechanical ==
279
280
281 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
282
283
284 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
285
286
287 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
288
289
290 (% style="color:blue" %)**Probe Mechanical:**
291
292 [[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"]]
293
294
295 [[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"]]
296
297
298 = 2. Configure DDS20-LB to connect to LoRaWAN network =
299
300 == 2.1 How it works ==
301
302
303 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.
304
305 (% style="display:none" %) (%%)
306
307 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
308
309
310 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.
311
312 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.
313
314 [[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
315
316
317 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
318
319 Each DDS45-LB is shipped with a sticker with the default device EUI as below:
320
321 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
322
323
324 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
325
326
327 (% style="color:blue" %)**Register the device**
328
329 [[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"]]
330
331
332 (% style="color:blue" %)**Add APP EUI and DEV EUI**
333
334 [[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"]]
335
336
337 (% style="color:blue" %)**Add APP EUI in the application**
338
339
340 [[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"]]
341
342
343 (% style="color:blue" %)**Add APP KEY**
344
345 [[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"]]
346
347
348 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
349
350
351 Press the button for 5 seconds to activate the DDS45-LB.
352
353 (% 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.
354
355 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
356
357
358 == 2.3  ​Uplink Payload ==
359
360
361 (((
362 DDS45-LB will uplink payload via LoRaWAN with below payload format: 
363 )))
364
365 (((
366 Uplink payload includes in total 8 bytes.
367 )))
368
369 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
370 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
371 **Size(bytes)**
372 )))|=(% 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**
373 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
374 [[Distance>>||anchor="H2.3.2A0Distance"]]
375 (unit: mm)
376 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
377 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
378 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
379
380 [[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"]]
381
382
383 === 2.3.1  Battery Info ===
384
385
386 Check the battery voltage for DDS45-LB.
387
388 Ex1: 0x0B45 = 2885mV
389
390 Ex2: 0x0B49 = 2889mV
391
392
393 === 2.3.2  Distance ===
394
395
396 (((
397 Get the distance. Flat object range 30mm - 4500mm.
398 )))
399
400 (((
401 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" %)** **
402
403 (% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
404 )))
405
406 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
407 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
408
409 === 2.3.3  Interrupt Pin ===
410
411
412 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.
413
414 **Example:**
415
416 0x00: Normal uplink packet.
417
418 0x01: Interrupt Uplink Packet.
419
420
421 === 2.3.4  DS18B20 Temperature sensor ===
422
423
424 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
425
426 **Example**:
427
428 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
429
430 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
431
432
433 === 2.3.5  Sensor Flag ===
434
435
436 (((
437 0x01: Detect Ultrasonic Sensor
438 )))
439
440 (((
441 0x00: No Ultrasonic Sensor
442 )))
443
444
445 === 2.3.6  Decode payload in The Things Network ===
446
447
448 While using TTN network, you can add the payload format to decode the payload.
449
450 [[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"]]
451
452 The payload decoder function for TTN V3 is here:
453
454 (((
455 DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
456 )))
457
458
459 == 2.4  Uplink Interval ==
460
461
462 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"]]
463
464
465 == 2.5  ​Show Data in DataCake IoT Server ==
466
467
468 (((
469 [[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:
470 )))
471
472
473 (((
474 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
475 )))
476
477 (((
478 (% 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:**
479 )))
480
481
482 [[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"]]
483
484
485 [[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"]]
486
487
488 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
489
490 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
491
492 [[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"]]
493
494
495 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
496
497 [[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"]]
498
499
500
501 == 2.6 Datalog Feature ==
502
503
504 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.
505
506
507 === 2.6.1 Ways to get datalog via LoRaWAN ===
508
509
510 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.
511
512 * (((
513 a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
514 )))
515 * (((
516 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.
517 )))
518
519 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
520
521 [[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"]]
522
523
524 === 2.6.2 Unix TimeStamp ===
525
526
527 DDS45-LB uses Unix TimeStamp format based on
528
529 [[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"]]
530
531 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
532
533 Below is the converter example
534
535 [[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"]]
536
537
538 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
539
540
541 === 2.6.3 Set Device Time ===
542
543
544 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
545
546 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).
547
548 (% 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.**
549
550
551 === 2.6.4 Poll sensor value ===
552
553
554 Users can poll sensor values based on timestamps. Below is the downlink command.
555
556 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
557 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
558 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
559 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
560
561 (((
562 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.
563 )))
564
565 (((
566 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"]]
567 )))
568
569 (((
570 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
571 )))
572
573 (((
574 Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
575 )))
576
577
578 == 2.7 Frequency Plans ==
579
580
581 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.
582
583 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
584
585
586 = 3. Configure DDS45-LB =
587
588 == 3.1 Configure Methods ==
589
590
591 DDS45-LB supports below configure method:
592
593 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
594
595 * 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]].
596
597 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
598
599 == 3.2 General Commands ==
600
601
602 These commands are to configure:
603
604 * General system settings like: uplink interval.
605
606 * LoRaWAN protocol & radio related command.
607
608 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
609
610 [[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/]]
611
612
613 == 3.3 Commands special design for DDS45-LB ==
614
615
616 These commands only valid for DDS45-LB, as below:
617
618
619 === 3.3.1 Set Transmit Interval Time ===
620
621
622 (((
623 Feature: Change LoRaWAN End Node Transmit Interval.
624 )))
625
626 (((
627 (% style="color:blue" %)**AT Command: AT+TDC**
628 )))
629
630 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
631 |=(% 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**
632 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
633 30000
634 OK
635 the interval is 30000ms = 30s
636 )))
637 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
638 OK
639 Set transmit interval to 60000ms = 60 seconds
640 )))
641
642 (((
643 (% style="color:blue" %)**Downlink Command: 0x01**
644 )))
645
646 (((
647 Format: Command Code (0x01) followed by 3 bytes time value.
648 )))
649
650 (((
651 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
652 )))
653
654 * (((
655 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
656 )))
657 * (((
658 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
659 )))
660
661 === 3.3.2 Set Interrupt Mode ===
662
663
664 Feature, Set Interrupt mode for PA8 of pin.
665
666 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
667
668 (% style="color:blue" %)**AT Command: AT+INTMOD**
669
670 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
671 |=(% 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**
672 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
673 0
674 OK
675 the mode is 0 =Disable Interrupt
676 )))
677 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
678 Set Transmit Interval
679 0. (Disable Interrupt),
680 ~1. (Trigger by rising and falling edge)
681 2. (Trigger by falling edge)
682 3. (Trigger by rising edge)
683 )))|(% style="width:157px" %)OK
684
685 (% style="color:blue" %)**Downlink Command: 0x06**
686
687 Format: Command Code (0x06) followed by 3 bytes.
688
689 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
690
691 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
692
693 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
694
695 = 4. Battery & Power Consumption =
696
697
698 DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
699
700 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
701
702
703 = 5. OTA Firmware update =
704
705
706 (% class="wikigeneratedid" %)
707 User can change firmware DDS45-LB to:
708
709 * Change Frequency band/ region.
710
711 * Update with new features.
712
713 * Fix bugs.
714
715 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
716
717 Methods to Update Firmware:
718
719 * (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/]]
720
721 * 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]]**.
722
723 = 6. FAQ =
724
725 == 6.1  What is the frequency plan for DDS45-LB? ==
726
727
728 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"]]
729
730
731 == 6.2  Can I use DDS45-LB in condensation environment? ==
732
733
734 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.
735
736
737 = 7.  Trouble Shooting =
738
739 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
740
741
742 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
743
744
745 == 7.2  AT Command input doesn't work ==
746
747
748 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.
749
750
751 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
752
753
754 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
755
756 2. Sensor wiring is disconnected
757
758 3. Not using the correct decoder
759
760
761 == 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 ==
762
763
764 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
765
766 2) Does it change with temperature, temperature will affect its measurement
767
768 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
769
770 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
771
772 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
773
774 [[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"]]
775
776
777 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
778
779 Please send the data to us for check.
780
781
782 = 8. Order Info =
783
784
785 Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
786
787 (% style="color:red" %)**XXX**(%%): **The default frequency band**
788
789 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
790
791 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
792
793 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
794
795 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
796
797 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
798
799 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
800
801 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
802
803 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
804
805 = 9. ​Packing Info =
806
807
808 (% style="color:#037691" %)**Package Includes**:
809
810 * DDS45-LB LoRaWAN Distance Detection Sensor x 1
811
812 (% style="color:#037691" %)**Dimension and weight**:
813
814 * Device Size: cm
815
816 * Device Weight: g
817
818 * Package Size / pcs : cm
819
820 * Weight / pcs : g
821
822 = 10. Support =
823
824
825 * 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.
826
827 * 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]].