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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 74.1
edited by Xiaoling
on 2023/06/13 13:36
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To version 77.3
edited by Xiaoling
on 2023/06/13 14:02
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1 1  (% style="text-align:center" %)
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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 (% 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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38 38  * LoRaWAN 1.0.3 Class A
39 39  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
40 40  * Ultra-low power consumption
41 -* Distance Detection by Ultrasonic technology
42 -* Flat object range 30mm - 4500mm
43 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
44 -* 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)
45 45  * Cable Length : 25cm
46 46  * Support Bluetooth v5.1 and LoRaWAN remote configure
47 47  * Support wireless OTA update firmware
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50 50  * IP66 Waterproof Enclosure
51 51  * 8500mAh Battery for long term use
52 52  
53 -
54 54  == 1.3 Specification ==
55 55  
56 56  
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79 79  * Sleep Mode: 5uA @ 3.3v
80 80  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
81 81  
82 -
83 83  == 1.4 Rated environmental conditions ==
84 84  
85 85  
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134 134  * Sewer
135 135  * Bottom water level monitoring
136 136  
137 -
138 138  == 1.7 Sleep mode and working mode ==
139 139  
140 140  
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162 162  )))
163 163  |(% 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.
164 164  
165 -
166 166  == 1.9 BLE connection ==
167 167  
168 168  
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216 216  
217 217  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.
218 218  
219 -[[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" %)
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221 221  
222 222  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
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311 311  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
312 312  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
313 313  
314 -
315 315  === 2.3.3  Interrupt Pin ===
316 316  
317 317  
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502 502  
503 503  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
504 504  
505 -
506 506  == 3.2 General Commands ==
507 507  
508 508  
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565 565  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
566 566  )))
567 567  
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 -
604 604  = 4. Battery & Power Consumption =
605 605  
606 606  
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629 629  
630 630  * 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]]**.
631 631  
632 -
633 633  = 6. FAQ =
634 634  
635 635  == 6.1  What is the frequency plan for DDS45-LB? ==
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712 712  
713 713  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
714 714  
715 -
716 716  = 9. ​Packing Info =
717 717  
718 718  
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730 730  
731 731  * Weight / pcs : g
732 732  
733 -
734 734  = 10. Support =
735 735  
736 736  
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