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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 73.12
edited by Xiaoling
on 2023/06/13 12:00
Change comment: Update document after refactoring.
To version 75.5
edited by Xiaoling
on 2023/06/13 13:43
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1 -DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual
1 +DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230613100900-1.png||height="650" width="650"]]
2 +[[image:image-20230613133716-2.png||height="717" width="717"]]
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10 +
6 6  **Table of Contents：**
7 7  
8 8  {{toc/}}
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14 14  
15 15  = 1. Introduction =
16 16  
17 -== 1.1 What is LoRaWAN Distance Detection Sensor ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
18 18  
19 19  
20 -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 height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
21 21  
22 -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 (% style="color:blue" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**. 
23 23  
24 -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.
25 25  
26 -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.
27 27  
28 -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.
29 29  
30 -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.
31 31  
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 +
32 32  [[image:image-20230613102459-3.png||height="476" width="855"]]
33 33  
34 34  
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51 51  * 8500mAh Battery for long term use
52 52  
53 53  
54 -
55 55  == 1.3 Specification ==
56 56  
57 57  
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81 81  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82 82  
83 83  
84 -
85 85  == 1.4 Rated environmental conditions ==
86 86  
87 87  
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137 137  * Bottom water level monitoring
138 138  
139 139  
140 -
141 141  == 1.7 Sleep mode and working mode ==
142 142  
143 143  
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166 166  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
167 167  
168 168  
169 -
170 170  == 1.9 BLE connection ==
171 171  
172 172  
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316 316  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
317 317  
318 318  
319 -
320 320  === 2.3.3  Interrupt Pin ===
321 321  
322 322  
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508 508  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
509 509  
510 510  
511 -
512 512  == 3.2 General Commands ==
513 513  
514 514  
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572 572  )))
573 573  
574 574  
575 -
576 576  === 3.3.2 Set Interrupt Mode ===
577 577  
578 578  
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608 608  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
609 609  
610 610  
611 -
612 612  = 4. Battery & Power Consumption =
613 613  
614 614  
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638 638  * 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]]**.
639 639  
640 640  
641 -
642 642  = 6. FAQ =
643 643  
644 644  == 6.1  What is the frequency plan for DDS45-LB? ==
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722 722  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
723 723  
724 724  
725 -
726 726  = 9. ​Packing Info =
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728 728  
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741 741  * Weight / pcs : g
742 742  
743 743  
744 -
745 745  = 10. Support =
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747 747  
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