Changes for page wiki_test

Last modified by Mengting Qiu on 2024/09/05 17:35

From version 86.7
edited by Xiaoling
on 2023/09/12 11:28
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To version 86.4
edited by Xiaoling
on 2023/09/12 10:38
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... ... @@ -100,64 +100,144 @@
100 100  * STOP Mode: 10uA @ 3.3v
101 101  * Max transmit power: 350mA@3.3v
102 102  
103 -== 1.4 Rated environmental conditions ==
103 +== 1.4 Suitable Container & Liquid ==
104 104  
105 105  
106 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
107 -|(% style="background-color:#4f81bd; color:white; width:163px" %)**Item**|(% style="background-color:#4f81bd; color:white; width:90px" %)**Minimum value**|(% style="background-color:#4f81bd; color:white; width:70px" %)**Typical value**|(% style="background-color:#4f81bd; color:white; width:87px" %)**Maximum value**|(% style="background-color:#4f81bd; color:white; width:40px" %)**Unit**|(% style="background-color:#4f81bd; color:white; width:50px" %)**Remarks**
108 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
109 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
110 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
111 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
112 -
106 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
107 +* Container shape is regular, and surface is smooth.
108 +* Container Thickness:
109 +** Pure metal material.  2~~8mm, best is 3~~5mm
110 +** Pure non metal material: <10 mm
111 +* Pure liquid without irregular deposition.
113 113  
114 -
115 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
113 +(% style="display:none" %)
116 116  
115 +== 1.5 Install DDS20-NB ==
116 +
117 +
118 +(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
119 +
120 +DDS20-NB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
121 +
122 +[[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"]]
123 +
124 +
117 117  (((
118 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
126 +(% style="color:blue" %)**Step 2**(%%):  **Polish the installation point.**
127 +)))
119 119  
120 -(% 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)**
129 +(((
130 +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.
131 +)))
121 121  
122 -
133 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143052-5.png?rev=1.1||alt="image-20230613143052-5.png"]]
134 +
135 +
136 +No polish needed if the container is shine metal surface without paint or non-metal container.
137 +
138 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143125-6.png?rev=1.1||alt="image-20230613143125-6.png"]]
139 +
140 +
141 +(((
142 +(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
123 123  )))
124 124  
125 -== 1.5 Effective measurement range Reference beam pattern ==
145 +(((
146 +Power on DDS20-NB, 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.
147 +)))
126 126  
149 +(((
150 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-NB won't detect the liquid level.
151 +)))
127 127  
128 -(% 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.**
153 +(((
154 +After paste the DDS20-NB well, power on DDS20-NB. 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.
155 +)))
129 129  
130 -[[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"]]
131 131  
158 +(((
159 +(% style="color:blue" %)**LED Status:**
160 +)))
132 132  
133 -(% 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.**
162 +* (((
163 +**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
164 +)))
134 134  
135 -[[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"]]
166 +* (((
167 +(% 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.
168 +)))
169 +* (((
170 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
171 +)))
136 136  
173 +(((
174 +DDS20-NB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
175 +)))
137 137  
177 +
178 +(((
179 +(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
180 +)))
181 +
182 +
183 +(((
184 +(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
185 +)))
186 +
187 +(((
188 +Prepare Eproxy AB glue.
189 +)))
190 +
191 +(((
192 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
193 +)))
194 +
195 +(((
196 +Reset DDS20-NB and see if the BLUE LED is slowly blinking.
197 +)))
198 +
199 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230809172509-1.png?rev=1.1||alt="image-20230809172509-1.png"]]
200 +
201 +(((
202 +(% style="color:red" %)**Note :**(% style="color:red; display:none" %)** **
203 +
204 +(% style="color:red" %)**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.
205 +)))
206 +
207 +(((
208 +(% style="color:red" %)**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.
209 +)))
210 +
211 +
138 138  == 1.6 Applications ==
139 139  
140 140  
141 -* Horizontal distance measurement
142 -* Liquid level measurement
143 -* Parking management system
144 -* Object proximity and presence detection
145 -* Intelligent trash can management system
146 -* Robot obstacle avoidance
147 -* Automatic control
148 -* Sewer
149 -* Bottom water level monitoring
215 +* Smart liquid control solution
150 150  
217 +* Smart liquefied gas solution
151 151  
152 -== 1.7 Sleep mode and working mode ==
219 +== 1.7 Precautions ==
153 153  
154 154  
222 +* 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.
223 +
224 +* 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.
225 +
226 +* 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.
227 +
228 +(% style="display:none" %)
229 +
230 +
231 +
232 +== 1.8 Sleep mode and working mode ==
233 +
234 +
155 155  (% 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.
156 156  
157 157  (% 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.
158 158  
159 159  
160 -== 1.8 Button & LEDs ==
240 +== 1.9 Button & LEDs ==
161 161  
162 162  
163 163  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -176,10 +176,10 @@
176 176  )))
177 177  |(% 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.
178 178  
179 -== 1.9 BLE connection ==
259 +== 1.10 BLE connection ==
180 180  
181 181  
182 -DDS45-NB support BLE remote configure and firmware update.
262 +DDS20-NB support BLE remote configure and firmware update.
183 183  
184 184  
185 185  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:
... ... @@ -191,19 +191,19 @@
191 191  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
192 192  
193 193  
194 -== 1.10 Pin Definitions & Switch ==
274 +== 1.11 Pin Definitions & Switch ==
195 195  
196 196  
197 197  [[image:image-20230819104805-5.png]]
198 198  
199 199  
200 -=== 1.10.1 Jumper JP2 ===
280 +=== 1.11.1 Jumper JP2 ===
201 201  
202 202  
203 203  Power on Device when put this jumper.
204 204  
205 205  
206 -=== 1.10.2 BOOT MODE / SW1 ===
286 +=== 1.11.2 BOOT MODE / SW1 ===
207 207  
208 208  
209 209  **1)** (% style="color:blue" %)**ISP**(%%): upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
... ... @@ -211,7 +211,7 @@
211 211  **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
212 212  
213 213  
214 -=== 1.10.3 Reset Button ===
294 +=== 1.11.3 Reset Button ===
215 215  
216 216  
217 217  Press to reboot the device.
... ... @@ -219,8 +219,9 @@
219 219  (% style="display:none" %)
220 220  
221 221  
222 -== 1.11 Mechanical ==
302 +== 1.12 Mechanical ==
223 223  
304 +
224 224  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143884058-338.png?rev=1.1||alt="1675143884058-338.png"]]
225 225  
226 226  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143899218-599.png?rev=1.1||alt="1675143899218-599.png"]]
... ... @@ -230,16 +230,17 @@
230 230  
231 231  (% style="color:blue" %)**Probe Mechanical:**
232 232  
233 -[[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"]]
314 +[[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"]]
234 234  
316 +[[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"]]
235 235  
236 236  
237 -= 2. Use DDS45-NB to communicate with IoT Server =
319 += 2. Use DDS20-NB to communicate with IoT Server =
238 238  
239 239  == 2.1 Send data to IoT server via NB-IoT network ==
240 240  
241 241  
242 -The DDS45-NB is equipped with a NB-IoT module, the pre-loaded firmware in DDS45-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by DDS45-NB.
324 +The DDS20-NB is equipped with a NB-IoT module, the pre-loaded firmware in DDS20-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by DDS20-NB.
243 243  
244 244  
245 245  Below shows the network structure:
... ... @@ -250,7 +250,7 @@
250 250  There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of DDS45-NB.
251 251  
252 252  
253 -(% style="color:blue" %)**GE Version**(%%): This version doesn't include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set DDS45-NB send data to IoT server.
335 +(% style="color:blue" %)**GE Version**(%%): This version doesn't include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set DDS20-NB send data to IoT server.
254 254  
255 255  * Install NB-IoT SIM card and configure APN. See instruction of [[Attach Network>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].
256 256  
... ... @@ -280,13 +280,13 @@
280 280  [[image:image-20230819113244-11.png||height="141" width="367"]]
281 281  )))|(% style="width:170px" %)
282 282  
283 -(% style="color:blue" %)**1D Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to DataCake. User Just need to select the sensor type in DataCake and Activate DDS45-NB and user will be able to see data in DataCake. See here for [[DataCake Config Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]].
365 +(% style="color:blue" %)**1D Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to DataCake. User Just need to select the sensor type in DataCake and Activate DDS20-NB and user will be able to see data in DataCake. See here for [[DataCake Config Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]].
284 284  
285 285  
286 286  == 2.2 ​Payload Types ==
287 287  
288 288  
289 -To meet different server requirement, DDS45-NB supports different payload type.
371 +To meet different server requirement, DDS20-NB supports different payload type.
290 290  
291 291  **Includes:**
292 292  
... ... @@ -312,7 +312,7 @@
312 312  
313 313  This is the General Json Format. As below:
314 314  
315 -(% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24,"Model":DDS45-NB, "1":{28.2,48.3,2023/08/10 08:00:37},"2":{28.1,49.1,2023/08/10 07:57:37},"3":{28.1,48.5,2023/08/10 07:54:37},"4":{28.2,48.6,2023/08/10 07:51:37},"5":{28.1,48.9,2023/08/10 07:48:37},"6":{28.2,48.8,2023/08/10 07:45:37},"7":{28.2,48.8,2023/08/10 07:42:37},"8":{28.0,48.8,2023/08/10 07:39:37}}**
397 +(% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24,"Model":DDS20-NB, "1":{28.2,48.3,2023/08/10 08:00:37},"2":{28.1,49.1,2023/08/10 07:57:37},"3":{28.1,48.5,2023/08/10 07:54:37},"4":{28.2,48.6,2023/08/10 07:51:37},"5":{28.1,48.9,2023/08/10 07:48:37},"6":{28.2,48.8,2023/08/10 07:45:37},"7":{28.2,48.8,2023/08/10 07:42:37},"8":{28.0,48.8,2023/08/10 07:39:37}}**
316 316  
317 317  
318 318  (% style="color:red" %)**Notice, from above payload:**
... ... @@ -335,7 +335,7 @@
335 335  
336 336  These bytes include the hardware and software version.
337 337  
338 -(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS45-NB
420 +(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS20-NB
339 339  
340 340  (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
341 341  
... ... @@ -393,7 +393,7 @@
393 393  
394 394  
395 395  (((
396 -DDS45-NB will uplink payload via LoRaWAN with below payload format: 
478 +DDS20-NB will uplink payload via LoRaWAN with below payload format: 
397 397  )))
398 398  
399 399  (((
... ... @@ -415,7 +415,7 @@
415 415  === 2.3.1  Battery Info ===
416 416  
417 417  
418 -Check the battery voltage for DDS45-NB.
500 +Check the battery voltage for DDS20-NB.
419 419  
420 420  Ex1: 0x0B45 = 2885mV
421 421  
... ... @@ -426,22 +426,19 @@
426 426  
427 427  
428 428  (((
429 -Get the distance. Flat object range 30mm - 4500mm.
511 +Get the distance. Flat object range 20mm - 2000mm.
430 430  )))
431 431  
432 432  (((
433 -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" %)** **
515 +For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
434 434  
435 -(% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
517 +(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
436 436  )))
437 437  
438 438  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
439 439  
440 -* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
522 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
441 441  
442 -
443 -
444 -
445 445  === 2.3.3  Interrupt Pin ===
446 446  
447 447  
... ... @@ -494,7 +494,7 @@
494 494  == 2.5 Multi-Samplings and One uplink ==
495 495  
496 496  
497 -To save battery life, DDS45-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
576 +To save battery life, DDS20-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
498 498  
499 499  * (% style="color:#037691" %)**AT+TR=900**   (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds (15 minutes, the minimum can be set to 180 seconds)
500 500  
... ... @@ -508,7 +508,7 @@
508 508  == 2.6 Trggier an uplink by external interrupt ==
509 509  
510 510  
511 -DDS45-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
590 +DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
512 512  
513 513  (% style="color:blue" %)**AT command:**
514 514  
... ... @@ -522,12 +522,12 @@
522 522  
523 523  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
524 524  
525 -= 3. Configure DDS45-NB =
604 += 3. Configure DDS20-NB =
526 526  
527 527  == 3.1 Configure Methods ==
528 528  
529 529  
530 -DDS45-NB supports below configure method:
609 +DDS20-NB supports below configure method:
531 531  
532 532  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
533 533  
... ... @@ -616,7 +616,7 @@
616 616  = 4. Battery & Power Consumption =
617 617  
618 618  
619 -DDS45-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
698 +DDS20-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
620 620  
621 621  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
622 622  
... ... @@ -638,9 +638,6 @@
638 638  
639 639  * 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]]**.
640 640  
641 -
642 -
643 -
644 644  = 6. FAQ =
645 645  
646 646  == 6.1 How can I access t BC660K-GL AT Commands? ==
... ... @@ -651,49 +651,23 @@
651 651  [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
652 652  
653 653  
654 -== 6.2 Can I use DDS45-NB in condensation environment? ==
730 += 7.  Trouble Shooting =
655 655  
732 +== 7.1  Why i always see 0x0000 or 0 for the distance value? ==
656 656  
657 -DDS45-NB is not suitable to be used in condensation environment. Condensation on the DDS45-NB probe will affect the reading and always got 0.
658 658  
735 +(((
736 +DDS20-NB has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-NB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
659 659  
660 -= 7. Trouble Shooting =
738 +If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
661 661  
662 -== 7.1 Why does the sensor reading show 0 or "No sensor" ==
740 +
741 +)))
663 663  
664 -
665 -~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
666 -
667 -2. Sensor wiring is disconnected
668 -
669 -3. Not using the correct decoder
670 -
671 -
672 -== 7.2 Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
673 -
674 -
675 -1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
676 -
677 -2) Does it change with temperature, temperature will affect its measurement
678 -
679 -3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
680 -
681 -downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
682 -
683 -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
684 -
685 -[[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"]]
686 -
687 -
688 -Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
689 -
690 -Please send the data to us for check.
691 -
692 -
693 693  = 8. Order Info =
694 694  
695 695  
696 -Part Number: (% style="color:blue" %)**DDS45-NB-XX**
746 +Part Number: (% style="color:blue" %)**DDS20-NB-XX**
697 697  
698 698  (% style="color:red" %)**XX**(%%):
699 699  
... ... @@ -709,7 +709,7 @@
709 709  
710 710  (% style="color:#037691" %)**Package Includes**:
711 711  
712 -* DDS450-NB NB-IoT Ultrasonic liquid level sensor x 1
762 +* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1
713 713  
714 714  * External antenna x 1
715 715  
... ... @@ -723,9 +723,6 @@
723 723  
724 724  * Weight / pcs : 180g
725 725  
726 -
727 -
728 -
729 729  = 10. Support =
730 730  
731 731