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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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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  
37 37  * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
38 38  * Ultra-low power consumption
39 -* External 3 meters SHT31 probe (For S31-NB)
40 -* Measure range -40°C ~~ 85°C
41 -* Temperature & Humidity alarm
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)
42 42  * Multiply Sampling and one uplink
43 43  * Support Bluetooth v5.1 remote configure and update firmware
44 44  * Uplink on periodically
45 45  * Downlink to change configure
50 +* IP66 Waterproof Enclosure
46 46  * 8500mAh Battery for long term use
47 47  * Nano SIM card slot for NB-IoT SIM
48 48  
49 -
50 -
51 51  == 1.3 Specification ==
52 52  
53 53  
54 54  (% style="color:blue" %)**Common DC Characteristics:**
55 55  
56 -* Supply Voltage: 2.1v ~~ 3.6v
59 +* Supply Voltage: 2.5v ~~ 3.6v
57 57  * Operating Temperature: -40 ~~ 85°C
58 58  
59 -(% style="color:blue" %)**Temperature Sensor:**
60 -
61 -* Range: -40 to + 80°C
62 -* Accuracy: ±0.2 @ 0-90 °C
63 -* Resolution: 0.1°C
64 -* Long Term Shift: <0.03 °C/yr
65 -
66 -(% style="color:blue" %)**Humidity Sensor: **
67 -
68 -* Range: 0 ~~ 99.9% RH
69 -* Accuracy: ± 2%RH ( 0 ~~ 100%RH)
70 -* Resolution: 0.01% RH
71 -* Long Term Shift: <0.25 %RH/yr
72 -
73 73  (% style="color:blue" %)**NB-IoT Spec:**
74 74  
75 75  (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
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107 107  * STOP Mode: 10uA @ 3.3v
108 108  * Max transmit power: 350mA@3.3v
109 109  
110 -
111 -
112 112  == 1.4 Applications ==
113 113  
114 114  
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119 119  * Smart Cities
120 120  * Smart Factory
121 121  
122 -
123 -
124 124  == 1.5 Sleep mode and working mode ==
125 125  
126 126  
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148 148  )))
149 149  |(% 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.
150 150  
151 -
152 -
153 153  == 1.7 BLE connection ==
154 154  
155 155  
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312 312  
313 313  * 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.
314 314  
315 -
316 -
317 317  === 2.2.2 HEX format Payload(Type~=0) ===
318 318  
319 319  
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446 446  
447 447  * 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.**
448 448  
449 -
450 -
451 451  == 2.6 Trggier an uplink by external interrupt ==
452 452  
453 453  
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465 465  
466 466  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
467 467  
468 -
469 -
470 470  = 3. Configure S31x-NB =
471 471  
472 472  == 3.1 Configure Methods ==
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478 478  
479 479  * 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]].
480 480  
481 -
482 -
483 483  == 3.2 AT Commands Set ==
484 484  
485 485  
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585 585  
586 586  * 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]]**.
587 587  
588 -
589 -
590 590  = 6. FAQ =
591 591  
592 592  == 6.1 How can I access t BC660K-GL AT Commands? ==
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630 630  
631 631  * Weight / pcs : 180g
632 632  
633 -
634 -
635 635  = 9. Support =
636 636  
637 637  
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