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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 82.31
edited by Xiaoling
on 2023/08/19 15:07
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To version 84.3
edited by Xiaoling
on 2023/09/11 14:14
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Title
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1 -S31-NB/S31B-NB_BN-IoT Outdoor Temperature & Humidity Sensor User Manual
1 +DDS20-NB -- NB-IoT Ultrasonic Liquid Level Sensor User Manual
Content
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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 -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*.
19 +The Dragino DDS20-NB is a **NB-IoT Ultrasonic liquid level sensor** for Internet of Things solution. It uses **none-contact method **to measure the **height of liquid** in a container without opening the container, and send IoT platform via NB-IoT network.
21 21  
22 -The temperature & humidity sensor used in S31-NB is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)**waterproof anti-condensation casing**(%%) for long term use.
21 +The DDS20-NB 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 -S31-NB supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP**(%%) for different application requirement. and Support Uplinks to various IoT Servers.
23 +DDS20-NB uses **ultrasonic sensing technology** for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: **toxic substances**, **strong acids**, **strong alkalis** and **various pure liquids** in high-temperature and high-pressure airtight containers.
25 25  
26 -S31-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to several years. (Real-world battery life depends on the use environment, update period and uplink method. Please check related Power Analyze report).
25 +PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
27 27  
28 -*make sure you have NB-IoT coverage locally.
27 +PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
29 29  
29 +PS-NB-NA is powered by **8500mAh Li-SOCI2 battery**, it is designed for long-term use up to severa years.
30 30  
31 -[[image:1692411831805-116.png]]
31 +PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
32 32  
33 33  
34 +[[image:image-20230911140426-2.png||height="320" width="951"]]
35 +
36 +
34 34  == 1.2 ​Features ==
35 35  
36 36  
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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 -
111 111  == 1.4 Applications ==
112 112  
113 113  
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118 118  * Smart Cities
119 119  * Smart Factory
120 120  
121 -
122 -
123 123  == 1.5 Sleep mode and working mode ==
124 124  
125 125  
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147 147  )))
148 148  |(% 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.
149 149  
150 -
151 -
152 152  == 1.7 BLE connection ==
153 153  
154 154  
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311 311  
312 312  * 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.
313 313  
314 -
315 -
316 316  === 2.2.2 HEX format Payload(Type~=0) ===
317 317  
318 318  
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445 445  
446 446  * 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.**
447 447  
448 -
449 -
450 450  == 2.6 Trggier an uplink by external interrupt ==
451 451  
452 452  
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464 464  
465 465  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
466 466  
467 -
468 -
469 469  = 3. Configure S31x-NB =
470 470  
471 471  == 3.1 Configure Methods ==
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477 477  
478 478  * 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]].
479 479  
480 -
481 -
482 482  == 3.2 AT Commands Set ==
483 483  
484 484  
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584 584  
585 585  * 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]]**.
586 586  
587 -
588 -
589 589  = 6. FAQ =
590 590  
591 591  == 6.1 How can I access t BC660K-GL AT Commands? ==
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629 629  
630 630  * Weight / pcs : 180g
631 631  
632 -
633 -
634 634  = 9. Support =
635 635  
636 636  
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