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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.24
edited by Xiaoling
on 2023/09/11 16:01
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To version 85.3
edited by Xiaoling
on 2023/09/12 08:59
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Title
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1 -DDS20-NB -- NB-IoT Ultrasonic Liquid Level Sensor User Manual
1 +DDS45-NB -- NB-IoT Distance Detection Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230911134259-1.png||height="570" width="570"]]
2 +[[image:image-20230912085600-1.png||height="519" width="731"]]
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5 5  **Table of Contents:**
6 6  
7 7  {{toc/}}
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13 13  
14 14  = 1. Introduction =
15 15  
16 -== 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
23 +== 1.1 What is DDS45-NB NB-IoT Distance Detection Sensor ==
17 17  
18 18  
19 19  The Dragino DDS20-NB is a (% style="color:blue" %)**NB-IoT 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 IoT platform via NB-IoT network.
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51 51  * 8500mAh Battery for long term use
52 52  * Nano SIM card slot for NB-IoT SIM
53 53  
61 +
54 54  == 1.3 Specification ==
55 55  
56 56  
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96 96  * STOP Mode: 10uA @ 3.3v
97 97  * Max transmit power: 350mA@3.3v
98 98  
107 +
99 99  == 1.4 Suitable Container & Liquid ==
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101 101  
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106 106  ** Pure non metal material: <10 mm
107 107  * Pure liquid without irregular deposition.
108 108  
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109 109  (% style="display:none" %)
110 110  
111 111  == 1.5 Install DDS20-NB ==
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213 213  * Smart liquefied gas solution
214 214  
215 215  
216 -
217 217  == 1.7 Precautions ==
218 218  
219 219  
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255 255  |(% 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.
256 256  
257 257  
258 -
259 259  == 1.10 BLE connection ==
260 260  
261 261  
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404 404  * Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.
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406 406  
407 -
408 408  === 2.2.2 HEX format Payload(Type~=0) ===
409 409  
410 410  
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524 524  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
525 525  
526 526  
527 -
528 528  === 2.3.3  Interrupt Pin ===
529 529  
530 530  
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606 606  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
607 607  
608 608  
609 -
610 610  = 3. Configure DDS20-NB =
611 611  
612 612  == 3.1 Configure Methods ==
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619 619  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
620 620  
621 621  
622 -
623 623  == 3.2 AT Commands Set ==
624 624  
625 625  
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726 726  * 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]]**.
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728 728  
729 -
730 730  = 6. FAQ =
731 731  
732 732  == 6.1 How can I access t BC660K-GL AT Commands? ==
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784 784  * Weight / pcs : 180g
785 785  
786 786  
787 -
788 788  = 10. Support =
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790 790  
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1 +XWiki.Xiaoling
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