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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 83.1
edited by Xiaoling
on 2023/09/11 13:42
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To version 84.2
edited by Xiaoling
on 2023/09/11 14:04
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Title
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1 -DDS20-NB_NB-IoT_Ultrasonic_Liquid_Level_Sensor_User_Manual
1 +DDS20-NB -- NB-IoT Ultrasonic Liquid Level Sensor User Manual
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230819102136-3.png]]
2 +[[image:image-20230911134259-1.png||height="570" width="570"]]
3 3  
4 4  
5 -
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 S31x-NB NB-IoT Temperature & Humidity Sensor ==
16 +== 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
18 18  
19 19  
20 20  The Dragino S31-NB and S31B-NB are (% style="color:blue" %)**NB-IoT Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the surrounding (% style="color:blue" %)**environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via NB-IoT network*.
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28 28  *make sure you have NB-IoT coverage locally.
29 29  
30 30  
31 -[[image:1692411831805-116.png]]
30 +[[image:image-20230911140426-2.png||height="320" width="951"]]
32 32  
33 33  
34 34  == 1.2 ​Features ==
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46 46  * 8500mAh Battery for long term use
47 47  * Nano SIM card slot for NB-IoT SIM
48 48  
49 -
50 50  == 1.3 Specification ==
51 51  
52 52  
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106 106  * STOP Mode: 10uA @ 3.3v
107 107  * Max transmit power: 350mA@3.3v
108 108  
109 -
110 110  == 1.4 Applications ==
111 111  
112 112  
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117 117  * Smart Cities
118 118  * Smart Factory
119 119  
120 -
121 121  == 1.5 Sleep mode and working mode ==
122 122  
123 123  
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145 145  )))
146 146  |(% 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.
147 147  
148 -
149 149  == 1.7 BLE connection ==
150 150  
151 151  
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308 308  
309 309  * 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.
310 310  
311 -
312 312  === 2.2.2 HEX format Payload(Type~=0) ===
313 313  
314 314  
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441 441  
442 442  * If user only want to send only min or max, user can set the alarm to a value that device won’t reach. For example: (% style="color:#037691" %)**AT+SHTEMP=-80,0.**
443 443  
444 -
445 445  == 2.6 Trggier an uplink by external interrupt ==
446 446  
447 447  
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459 459  
460 460  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
461 461  
462 -
463 463  = 3. Configure S31x-NB =
464 464  
465 465  == 3.1 Configure Methods ==
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471 471  
472 472  * 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]].
473 473  
474 -
475 475  == 3.2 AT Commands Set ==
476 476  
477 477  
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577 577  
578 578  * 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]]**.
579 579  
580 -
581 581  = 6. FAQ =
582 582  
583 583  == 6.1 How can I access t BC660K-GL AT Commands? ==
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621 621  
622 622  * Weight / pcs : 180g
623 623  
624 -
625 625  = 9. Support =
626 626  
627 627  
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1 +XWiki.Xiaoling
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