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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 75.2
edited by Xiaoling
on 2023/06/13 13:38
Change comment: There is no comment for this version
To version 79.6
edited by Xiaoling
on 2023/06/13 14:47
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -19,24 +19,26 @@
19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Distance Detection Sensor ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
23 23  
24 24  
25 -The Dragino DDS45-LB is a (% style="color:blue" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-LB can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
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 26  
27 -It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
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 28  
29 -The LoRa wireless technology used in DDS45-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
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 30  
31 -DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
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 32  
33 -DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
33 +DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34 34  
35 -Each DDS45-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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 36  
37 -[[image:image-20230613102459-3.png||height="476" width="855"]]
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 38  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
39 39  
41 +
40 40  == 1.2 ​Features ==
41 41  
42 42  
... ... @@ -43,10 +43,10 @@
43 43  * LoRaWAN 1.0.3 Class A
44 44  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
45 45  * Ultra-low power consumption
46 -* Distance Detection by Ultrasonic technology
47 -* Flat object range 30mm - 4500mm
48 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
49 -* Measure Angle: 60°
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)
50 50  * Cable Length : 25cm
51 51  * Support Bluetooth v5.1 and LoRaWAN remote configure
52 52  * Support wireless OTA update firmware
... ... @@ -55,7 +55,6 @@
55 55  * IP66 Waterproof Enclosure
56 56  * 8500mAh Battery for long term use
57 57  
58 -
59 59  == 1.3 Specification ==
60 60  
61 61  
... ... @@ -84,71 +84,145 @@
84 84  * Sleep Mode: 5uA @ 3.3v
85 85  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
86 86  
88 +== 1.4 Suitable Container & Liquid ==
87 87  
88 -== 1.4 Rated environmental conditions ==
89 89  
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" %)
90 90  
91 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
92 -|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
93 -**Minimum value**
94 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
95 -**Typical value**
96 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
97 -**Maximum value**
98 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
99 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
100 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
101 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
102 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
103 -
104 104  
105 -
106 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
99 +== 1.5 Install DDS20-LB ==
107 107  
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 +
108 108  (((
109 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
110 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
111 +)))
110 110  
111 -(% 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)**
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 +)))
112 112  
113 -
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.
114 114  )))
115 115  
116 -== 1.5 Effective measurement range Reference beam pattern ==
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 +)))
117 117  
133 +(((
134 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
135 +)))
118 118  
119 -(% 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.**
137 +(((
138 +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.
139 +)))
120 120  
121 -[[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"]]
122 122  
142 +(((
143 +(% style="color:red" %)**LED Status:**
144 +)))
123 123  
124 -(% 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.**
146 +* (((
147 +Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
148 +)))
125 125  
126 -[[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"]]
150 +* (((
151 +(% 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.
152 +)))
153 +* (((
154 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
155 +)))
127 127  
157 +(((
158 +LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
159 +)))
128 128  
161 +
162 +(((
163 +(% style="color:red" %)**Note 2:**
164 +)))
165 +
166 +(((
167 +(% 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.
168 +)))
169 +
170 +
171 +(((
172 +(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
173 +)))
174 +
175 +(((
176 +Prepare Eproxy AB glue.
177 +)))
178 +
179 +(((
180 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
181 +)))
182 +
183 +(((
184 +Reset DDS20-LB and see if the BLUE LED is slowly blinking.
185 +)))
186 +
187 +[[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-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[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-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
188 +
189 +
190 +(((
191 +(% style="color:red" %)**Note 1:(%%) (% style="color:blue" %)Eproxy AB glue**(%%) needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
192 +)))
193 +
194 +(((
195 +(% style="color:red" %)**Note 2:(%%) (% style="color:blue" %)Eproxy AB glue**(%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
196 +)))
197 +
198 +
129 129  == 1.6 Applications ==
130 130  
131 131  
132 -* Horizontal distance measurement
133 -* Liquid level measurement
134 -* Parking management system
135 -* Object proximity and presence detection
136 -* Intelligent trash can management system
137 -* Robot obstacle avoidance
138 -* Automatic control
139 -* Sewer
140 -* Bottom water level monitoring
202 +* Smart liquid control solution.
141 141  
204 +* Smart liquefied gas solution.
142 142  
143 -== 1.7 Sleep mode and working mode ==
144 144  
145 145  
208 +== 1.7 Precautions ==
209 +
210 +
211 +* 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.
212 +
213 +* 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.
214 +
215 +* 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" %)
216 +
217 +
218 +== 1.8 Sleep mode and working mode ==
219 +
220 +
146 146  (% 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.
147 147  
148 148  (% 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.
149 149  
150 150  
151 -== 1.8 Button & LEDs ==
226 +== 1.9 Button & LEDs ==
152 152  
153 153  
154 154  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -167,13 +167,11 @@
167 167  )))
168 168  |(% 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.
169 169  
245 +== 1.10 BLE connection ==
170 170  
171 -== 1.9 BLE connection ==
172 172  
248 +DDS20-LB support BLE remote configure.
173 173  
174 -DDS45-LB support BLE remote configure.
175 -
176 -
177 177  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:
178 178  
179 179  * Press button to send an uplink
... ... @@ -183,12 +183,12 @@
183 183  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
184 184  
185 185  
186 -== 1.10 Pin Definitions ==
259 +== 1.11 Pin Definitions ==
187 187  
188 188  [[image:image-20230523174230-1.png]]
189 189  
190 190  
191 -== 1.11 Mechanical ==
264 +== 1.12 Mechanical ==
192 192  
193 193  
194 194  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
... ... @@ -202,15 +202,18 @@
202 202  
203 203  (% style="color:blue" %)**Probe Mechanical:**
204 204  
205 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1||alt="1654915562090-396.png"]]
278 +[[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"]]
206 206  
207 207  
208 -= 2. Configure DDS45-LB to connect to LoRaWAN network =
281 +[[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"]]
209 209  
283 +
284 += 2. Configure DDS20-LB to connect to LoRaWAN network =
285 +
210 210  == 2.1 How it works ==
211 211  
212 212  
213 -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.
289 +The DDS20-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 DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
214 214  
215 215  (% style="display:none" %) (%%)
216 216  
... ... @@ -221,12 +221,12 @@
221 221  
222 222  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.
223 223  
224 -[[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
300 +[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
225 225  
226 226  
227 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
303 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
228 228  
229 -Each DDS45-LB is shipped with a sticker with the default device EUI as below:
305 +Each DDS20-LB is shipped with a sticker with the default device EUI as below:
230 230  
231 231  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
232 232  
... ... @@ -255,10 +255,10 @@
255 255  [[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"]]
256 256  
257 257  
258 -(% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
334 +(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
259 259  
260 260  
261 -Press the button for 5 seconds to activate the DDS45-LB.
337 +Press the button for 5 seconds to activate the DDS20-LB.
262 262  
263 263  (% 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.
264 264  
... ... @@ -269,7 +269,7 @@
269 269  
270 270  
271 271  (((
272 -DDS45-LB will uplink payload via LoRaWAN with below payload format: 
348 +DDS20-LB will uplink payload via LoRaWAN with below payload format: 
273 273  )))
274 274  
275 275  (((
... ... @@ -293,7 +293,7 @@
293 293  === 2.3.1  Battery Info ===
294 294  
295 295  
296 -Check the battery voltage for DDS45-LB.
372 +Check the battery voltage for DDS20-LB.
297 297  
298 298  Ex1: 0x0B45 = 2885mV
299 299  
... ... @@ -316,7 +316,6 @@
316 316  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
317 317  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
318 318  
319 -
320 320  === 2.3.3  Interrupt Pin ===
321 321  
322 322  
... ... @@ -363,7 +363,7 @@
363 363  The payload decoder function for TTN V3 is here:
364 364  
365 365  (((
366 -DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
441 +DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
367 367  )))
368 368  
369 369  
... ... @@ -370,7 +370,7 @@
370 370  == 2.4  Uplink Interval ==
371 371  
372 372  
373 -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"]]
448 +The DDS20-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"]]
374 374  
375 375  
376 376  == 2.5  ​Show Data in DataCake IoT Server ==
... ... @@ -398,7 +398,7 @@
398 398  
399 399  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
400 400  
401 -(% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
476 +(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
402 402  
403 403  [[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"]]
404 404  
... ... @@ -412,19 +412,19 @@
412 412  == 2.6 Datalog Feature ==
413 413  
414 414  
415 -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.
490 +Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS20-LB will store the reading for future retrieving purposes.
416 416  
417 417  
418 418  === 2.6.1 Ways to get datalog via LoRaWAN ===
419 419  
420 420  
421 -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.
496 +Set PNACKMD=1, DDS20-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS20-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.
422 422  
423 423  * (((
424 -a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
499 +a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
425 425  )))
426 426  * (((
427 -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.
502 +b) DDS20-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS20-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 DDS20-LB gets a ACK, DDS20-LB will consider there is a network connection and resend all NONE-ACK messages.
428 428  )))
429 429  
430 430  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
... ... @@ -435,7 +435,7 @@
435 435  === 2.6.2 Unix TimeStamp ===
436 436  
437 437  
438 -DDS45-LB uses Unix TimeStamp format based on
513 +DDS20-LB uses Unix TimeStamp format based on
439 439  
440 440  [[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-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
441 441  
... ... @@ -454,7 +454,7 @@
454 454  
455 455  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
456 456  
457 -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).
532 +Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
458 458  
459 459  (% 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.**
460 460  
... ... @@ -482,7 +482,7 @@
482 482  )))
483 483  
484 484  (((
485 -Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
560 +Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
486 486  )))
487 487  
488 488  
... ... @@ -489,17 +489,17 @@
489 489  == 2.7 Frequency Plans ==
490 490  
491 491  
492 -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.
567 +The DDS20-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.
493 493  
494 494  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
495 495  
496 496  
497 -= 3. Configure DDS45-LB =
572 += 3. Configure DDS20-LB =
498 498  
499 499  == 3.1 Configure Methods ==
500 500  
501 501  
502 -DDS45-LB supports below configure method:
577 +DDS20-LB supports below configure method:
503 503  
504 504  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
505 505  
... ... @@ -507,7 +507,6 @@
507 507  
508 508  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
509 509  
510 -
511 511  == 3.2 General Commands ==
512 512  
513 513  
... ... @@ -522,10 +522,10 @@
522 522  [[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/]]
523 523  
524 524  
525 -== 3.3 Commands special design for DDS45-LB ==
599 +== 3.3 Commands special design for DDS20-LB ==
526 526  
527 527  
528 -These commands only valid for DDS45-LB, as below:
602 +These commands only valid for DDS20-LB, as below:
529 529  
530 530  
531 531  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -570,7 +570,6 @@
570 570  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
571 571  )))
572 572  
573 -
574 574  === 3.3.2 Set Interrupt Mode ===
575 575  
576 576  
... ... @@ -605,11 +605,10 @@
605 605  
606 606  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
607 607  
608 -
609 609  = 4. Battery & Power Consumption =
610 610  
611 611  
612 -DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
684 +DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
613 613  
614 614  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
615 615  
... ... @@ -618,7 +618,7 @@
618 618  
619 619  
620 620  (% class="wikigeneratedid" %)
621 -User can change firmware DDS45-LB to:
693 +User can change firmware DDS20-LB to:
622 622  
623 623  * Change Frequency band/ region.
624 624  
... ... @@ -626,7 +626,7 @@
626 626  
627 627  * Fix bugs.
628 628  
629 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
701 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
630 630  
631 631  Methods to Update Firmware:
632 632  
... ... @@ -634,7 +634,6 @@
634 634  
635 635  * 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]]**.
636 636  
637 -
638 638  = 6. FAQ =
639 639  
640 640  == 6.1  What is the frequency plan for DDS45-LB? ==
... ... @@ -717,7 +717,6 @@
717 717  
718 718  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
719 719  
720 -
721 721  = 9. ​Packing Info =
722 722  
723 723  
... ... @@ -735,7 +735,6 @@
735 735  
736 736  * Weight / pcs : g
737 737  
738 -
739 739  = 10. Support =
740 740  
741 741  
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