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Last modified by Mengting Qiu on 2023/12/14 11:15
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edited by Xiaoling
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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"]]
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
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 (% style="color:blue" %)**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 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  
32 -[[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.
33 33  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
34 34  
41 +
35 35  == 1.2 ​Features ==
36 36  
37 37  
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50 50  * IP66 Waterproof Enclosure
51 51  * 8500mAh Battery for long term use
52 52  
53 -
54 -
55 55  == 1.3 Specification ==
56 56  
57 57  
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80 80  * Sleep Mode: 5uA @ 3.3v
81 81  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82 82  
83 -
84 -
85 85  == 1.4 Rated environmental conditions ==
86 86  
87 87  
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136 136  * Sewer
137 137  * Bottom water level monitoring
138 138  
139 -
140 -
141 141  == 1.7 Sleep mode and working mode ==
142 142  
143 143  
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165 165  )))
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 -
169 -
170 170  == 1.9 BLE connection ==
171 171  
172 172  
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220 220  
221 221  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.
222 222  
223 -[[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
222 +[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
224 224  
225 225  
226 226  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
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315 315  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
316 316  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
317 317  
318 -
319 -
320 320  === 2.3.3  Interrupt Pin ===
321 321  
322 322  
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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 -
512 512  == 3.2 General Commands ==
513 513  
514 514  
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571 571  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
572 572  )))
573 573  
574 -
575 -
576 576  === 3.3.2 Set Interrupt Mode ===
577 577  
578 578  
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607 607  
608 608  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
609 609  
610 -
611 -
612 612  = 4. Battery & Power Consumption =
613 613  
614 614  
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637 637  
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 -
641 -
642 642  = 6. FAQ =
643 643  
644 644  == 6.1  What is the frequency plan for DDS45-LB? ==
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721 721  
722 722  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
723 723  
724 -
725 -
726 726  = 9. ​Packing Info =
727 727  
728 728  
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740 740  
741 741  * Weight / pcs : g
742 742  
743 -
744 -
745 745  = 10. Support =
746 746  
747 747  
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