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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.8
edited by Xiaoling
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To version 84.12
edited by Xiaoling
on 2023/09/11 15:17
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16 16  == 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level 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.
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.
20 20  
21 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 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.
23 +DDS20-NB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**, **strong acids**, **strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
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.
25 +DDS20-NB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP & TCP**(%%) for different application requirement, and support uplinks to various IoT Servers.
26 26  
27 -PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
27 +DDS20-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.
28 28  
29 -PS-NB-NA is powered by **8500mAh Li-SOCI2 battery**, it is designed for long-term use up to severa years.
29 +DDS20-NB is powered by (% style="color:blue" %)**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 +DDS20-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
32 32  
33 33  
34 34  [[image:image-20230911140426-2.png||height="320" width="951"]]
... ... @@ -476,35 +476,11 @@
476 476  [[image:1692424376354-959.png]]
477 477  
478 478  
479 -== 2.5 Humidity and Temperature alarm function ==
479 +== 2.5 Trggier an uplink by external interrupt ==
480 480  
481 481  
482 -On each sampling define by AT+TR ( default 900s or 15 minutes), when the value exceed the range, it will trigger an Alarm and immediately sends a uplink.
482 +DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
483 483  
484 -
485 -(% style="color:blue" %)**AT Commands:**
486 -
487 -(% style="color:#037691" %)**AT+ SHHUM=min,max**
488 -
489 -Example: AT+ SHHUM=50,80  ~/~/ Alarm when humidity lower than 50 or higher than 80.
490 -
491 -
492 -(% style="color:#037691" %)**AT+ SHTEMP=min,max**
493 -
494 -Example: AT+ SHTEMP=20,30  ~/~/ Alarm when temperature lower than 20 or higher than 30
495 -
496 -
497 -(% style="color:red" %)**Notice:**
498 -
499 -* To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
500 -
501 -* 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.**
502 -
503 -== 2.6 Trggier an uplink by external interrupt ==
504 -
505 -
506 -S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
507 -
508 508  (% style="color:blue" %)**AT command:**
509 509  
510 510  * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
... ... @@ -517,12 +517,12 @@
517 517  
518 518  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
519 519  
520 -= 3. Configure S31x-NB =
496 += 3. Configure DDS20-NB =
521 521  
522 522  == 3.1 Configure Methods ==
523 523  
524 524  
525 -S31x-NB supports below configure method:
501 +DDS20-NB supports below configure method:
526 526  
527 527  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
528 528  
... ... @@ -611,7 +611,7 @@
611 611  = 4. Battery & Power Consumption =
612 612  
613 613  
614 -S31x-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
590 +DDS20-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
615 615  
616 616  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
617 617  
... ... @@ -646,7 +646,7 @@
646 646  = 7. Order Info =
647 647  
648 648  
649 -Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
625 +Part Number: (% style="color:blue" %)**DDS20-NB-XX**
650 650  
651 651  (% style="color:red" %)**XX**(%%):
652 652  
... ... @@ -662,7 +662,7 @@
662 662  
663 663  (% style="color:#037691" %)**Package Includes**:
664 664  
665 -* S31-NB or S31-NB NB-IoT Sensor Node x 1
641 +* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1
666 666  
667 667  * External antenna x 1
668 668