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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 77.2
edited by Xiaoling
on 2023/06/13 14:01
Change comment: There is no comment for this version
To version 74.1
edited by Xiaoling
on 2023/06/13 13:36
Change comment: Uploaded new attachment "image-20230613133647-1.png", version {1}

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1 1  (% style="text-align:center" %)
2 -[[image:image-20230613133716-2.png||height="717" width="717"]]
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3 3  
4 4  
5 5  
6 -
7 -
8 -
9 -
10 -
11 11  **Table of Contents：**
12 12  
13 13  {{toc/}}
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19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
17 +== 1.1 What is LoRaWAN Distance Detection Sensor ==
23 23  
24 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.
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.
26 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. 
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.
28 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.
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.
30 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.
26 +DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
32 32  
33 -DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
28 +DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
34 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.
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.
36 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.
32 +[[image:image-20230613102459-3.png||height="476" width="855"]]
38 38  
39 -[[image:image-20230613140115-3.png||height="453" width="800"]]
40 40  
41 -
42 42  == 1.2 ​Features ==
43 43  
44 44  
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57 57  * IP66 Waterproof Enclosure
58 58  * 8500mAh Battery for long term use
59 59  
53 +
60 60  == 1.3 Specification ==
61 61  
62 62  
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85 85  * Sleep Mode: 5uA @ 3.3v
86 86  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
87 87  
82 +
88 88  == 1.4 Rated environmental conditions ==
89 89  
90 90  
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139 139  * Sewer
140 140  * Bottom water level monitoring
141 141  
137 +
142 142  == 1.7 Sleep mode and working mode ==
143 143  
144 144  
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166 166  )))
167 167  |(% 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.
168 168  
165 +
169 169  == 1.9 BLE connection ==
170 170  
171 171  
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219 219  
220 220  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.
221 221  
222 -[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
219 +[[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
223 223  
224 224  
225 225  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
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314 314  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
315 315  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
316 316  
314 +
317 317  === 2.3.3  Interrupt Pin ===
318 318  
319 319  
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504 504  
505 505  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
506 506  
505 +
507 507  == 3.2 General Commands ==
508 508  
509 509  
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566 566  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
567 567  )))
568 568  
568 +
569 569  === 3.3.2 Set Interrupt Mode ===
570 570  
571 571  
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600 600  
601 601  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
602 602  
603 +
603 603  = 4. Battery & Power Consumption =
604 604  
605 605  
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628 628  
629 629  * 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]]**.
630 630  
632 +
631 631  = 6. FAQ =
632 632  
633 633  == 6.1  What is the frequency plan for DDS45-LB? ==
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710 710  
711 711  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
712 712  
715 +
713 713  = 9. ​Packing Info =
714 714  
715 715  
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727 727  
728 728  * Weight / pcs : g
729 729  
733 +
730 730  = 10. Support =
731 731  
732 732  
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