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Last modified by Mengting Qiu on 2024/09/05 17:35
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edited by Xiaoling
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edited by Xiaoling
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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
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230911134259-1.png||height="570" width="570"]]
2 +[[image:image-20230819102136-3.png]]
3 3  
4 4  
5 +
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 ==
17 +== 1.1 What is S31x-NB NB-IoT Temperature & Humidity Sensor ==
17 17  
18 18  
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.
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*.
20 20  
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. 
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.
22 22  
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.
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.
24 24  
25 -PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
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).
26 26  
27 -PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
28 +*make sure you have NB-IoT coverage locally.
28 28  
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 -PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
31 +[[image:1692411831805-116.png]]
32 32  
33 33  
34 -[[image:image-20230911140426-2.png||height="320" width="951"]]
35 -
36 -
37 37  == 1.2 ​Features ==
38 38  
39 39  
40 40  * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
41 41  * Ultra-low power consumption
42 -* Liquid Level Measurement by Ultrasonic technology
43 -* Measure through container, No need to contact Liquid
44 -* Valid level range 20mm - 2000mm
45 -* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
39 +* External 3 meters SHT31 probe (For S31-NB)
40 +* Measure range -40°C ~~ 85°C
41 +* Temperature & Humidity alarm
46 46  * Multiply Sampling and one uplink
47 47  * Support Bluetooth v5.1 remote configure and update firmware
48 48  * Uplink on periodically
49 49  * Downlink to change configure
50 -* IP66 Waterproof Enclosure
51 51  * 8500mAh Battery for long term use
52 52  * Nano SIM card slot for NB-IoT SIM
53 53  
49 +
54 54  == 1.3 Specification ==
55 55  
56 56  
57 57  (% style="color:blue" %)**Common DC Characteristics:**
58 58  
59 -* Supply Voltage: 2.5v ~~ 3.6v
55 +* Supply Voltage: 2.1v ~~ 3.6v
60 60  * Operating Temperature: -40 ~~ 85°C
61 61  
58 +(% style="color:blue" %)**Temperature Sensor:**
59 +
60 +* Range: -40 to + 80°C
61 +* Accuracy: ±0.2 @ 0-90 °C
62 +* Resolution: 0.1°C
63 +* Long Term Shift: <0.03 °C/yr
64 +
65 +(% style="color:blue" %)**Humidity Sensor: **
66 +
67 +* Range: 0 ~~ 99.9% RH
68 +* Accuracy: ± 2%RH ( 0 ~~ 100%RH)
69 +* Resolution: 0.01% RH
70 +* Long Term Shift: <0.25 %RH/yr
71 +
62 62  (% style="color:blue" %)**NB-IoT Spec:**
63 63  
64 64  (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
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96 96  * STOP Mode: 10uA @ 3.3v
97 97  * Max transmit power: 350mA@3.3v
98 98  
109 +
99 99  == 1.4 Applications ==
100 100  
101 101  
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106 106  * Smart Cities
107 107  * Smart Factory
108 108  
120 +
109 109  == 1.5 Sleep mode and working mode ==
110 110  
111 111  
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133 133  )))
134 134  |(% 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.
135 135  
148 +
136 136  == 1.7 BLE connection ==
137 137  
138 138  
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295 295  
296 296  * 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.
297 297  
311 +
298 298  === 2.2.2 HEX format Payload(Type~=0) ===
299 299  
300 300  
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427 427  
428 428  * 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.**
429 429  
444 +
430 430  == 2.6 Trggier an uplink by external interrupt ==
431 431  
432 432  
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444 444  
445 445  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
446 446  
462 +
447 447  = 3. Configure S31x-NB =
448 448  
449 449  == 3.1 Configure Methods ==
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455 455  
456 456  * 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]].
457 457  
474 +
458 458  == 3.2 AT Commands Set ==
459 459  
460 460  
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560 560  
561 561  * 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]]**.
562 562  
580 +
563 563  = 6. FAQ =
564 564  
565 565  == 6.1 How can I access t BC660K-GL AT Commands? ==
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603 603  
604 604  * Weight / pcs : 180g
605 605  
624 +
606 606  = 9. Support =
607 607  
608 608  
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Author
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1 -XWiki.Xiaoling
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1 -121.6 KB
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