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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 75.2
edited by Xiaoling
on 2023/06/13 13:38
Change comment: There is no comment for this version
To version 77.3
edited by Xiaoling
on 2023/06/13 14:02
Change comment: There is no comment for this version

Summary

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19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Distance Detection Sensor ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
23 23  
24 24  
25 -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.
26 26  
27 -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. 
28 28  
29 -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.
30 30  
31 -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.
32 32  
33 -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.
34 34  
35 -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.
36 36  
37 -[[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.
38 38  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
39 39  
41 +
40 40  == 1.2 ​Features ==
41 41  
42 42  
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43 43  * LoRaWAN 1.0.3 Class A
44 44  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
45 45  * Ultra-low power consumption
46 -* Distance Detection by Ultrasonic technology
47 -* Flat object range 30mm - 4500mm
48 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
49 -* 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)
50 50  * Cable Length : 25cm
51 51  * Support Bluetooth v5.1 and LoRaWAN remote configure
52 52  * Support wireless OTA update firmware
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55 55  * IP66 Waterproof Enclosure
56 56  * 8500mAh Battery for long term use
57 57  
58 -
59 59  == 1.3 Specification ==
60 60  
61 61  
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84 84  * Sleep Mode: 5uA @ 3.3v
85 85  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
86 86  
87 -
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  
142 -
143 143  == 1.7 Sleep mode and working mode ==
144 144  
145 145  
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167 167  )))
168 168  |(% 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.
169 169  
170 -
171 171  == 1.9 BLE connection ==
172 172  
173 173  
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221 221  
222 222  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.
223 223  
224 -[[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" %)
225 225  
226 226  
227 227  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
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316 316  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
317 317  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
318 318  
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 -
511 511  == 3.2 General Commands ==
512 512  
513 513  
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570 570  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
571 571  )))
572 572  
573 -
574 574  === 3.3.2 Set Interrupt Mode ===
575 575  
576 576  
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605 605  
606 606  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
607 607  
608 -
609 609  = 4. Battery & Power Consumption =
610 610  
611 611  
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634 634  
635 635  * 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]]**.
636 636  
637 -
638 638  = 6. FAQ =
639 639  
640 640  == 6.1  What is the frequency plan for DDS45-LB? ==
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717 717  
718 718  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
719 719  
720 -
721 721  = 9. ​Packing Info =
722 722  
723 723  
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735 735  
736 736  * Weight / pcs : g
737 737  
738 -
739 739  = 10. Support =
740 740  
741 741  
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