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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.12
edited by Xiaoling
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To version 84.7
edited by Xiaoling
on 2023/09/11 14:54
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... ... @@ -16,19 +16,19 @@
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 (% 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.
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 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 (% 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.
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 24  
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.
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 26  
27 -DDS20-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.
27 +PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
28 28  
29 -DDS20-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to severa years.
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 -DDS20-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
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 34  [[image:image-20230911140426-2.png||height="320" width="951"]]
... ... @@ -396,7 +396,7 @@
396 396  
397 397  These bytes include the hardware and software version.
398 398  
399 -(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS20-NB
399 +(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
400 400  
401 401  (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
402 402  
... ... @@ -423,6 +423,20 @@
423 423  **99**    Not known or not detectable
424 424  
425 425  
426 +(% style="color:blue" %)**Temperature: **
427 +
428 +If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
429 +
430 +If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
431 +
432 +(FF3F & 8000: Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
433 +
434 +
435 +(% style="color:blue" %)**Humidity:   **
436 +
437 +Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
438 +
439 +
426 426  (% style="color:blue" %)**TimeStamp:   **
427 427  
428 428  Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
... ... @@ -465,7 +465,7 @@
465 465  == 2.4 Multi-Samplings and One uplink ==
466 466  
467 467  
468 -To save battery life, DDS20-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
482 +To save battery life, S31-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
469 469  
470 470  * (% style="color:#037691" %)**AT+TR=900**   (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds (15 minutes, the minimum can be set to 180 seconds)
471 471  
... ... @@ -476,11 +476,35 @@
476 476  [[image:1692424376354-959.png]]
477 477  
478 478  
479 -== 2.5 Trggier an uplink by external interrupt ==
493 +== 2.5 Humidity and Temperature alarm function ==
480 480  
481 481  
482 -DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
496 +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.
483 483  
498 +
499 +(% style="color:blue" %)**AT Commands:**
500 +
501 +(% style="color:#037691" %)**AT+ SHHUM=min,max**
502 +
503 +Example: AT+ SHHUM=50,80  ~/~/ Alarm when humidity lower than 50 or higher than 80.
504 +
505 +
506 +(% style="color:#037691" %)**AT+ SHTEMP=min,max**
507 +
508 +Example: AT+ SHTEMP=20,30  ~/~/ Alarm when temperature lower than 20 or higher than 30
509 +
510 +
511 +(% style="color:red" %)**Notice:**
512 +
513 +* To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
514 +
515 +* 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.**
516 +
517 +== 2.6 Trggier an uplink by external interrupt ==
518 +
519 +
520 +S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
521 +
484 484  (% style="color:blue" %)**AT command:**
485 485  
486 486  * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
... ... @@ -493,12 +493,12 @@
493 493  
494 494  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
495 495  
496 -= 3. Configure DDS20-NB =
534 += 3. Configure S31x-NB =
497 497  
498 498  == 3.1 Configure Methods ==
499 499  
500 500  
501 -DDS20-NB supports below configure method:
539 +S31x-NB supports below configure method:
502 502  
503 503  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
504 504  
... ... @@ -587,7 +587,7 @@
587 587  = 4. Battery & Power Consumption =
588 588  
589 589  
590 -DDS20-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
628 +S31x-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
591 591  
592 592  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
593 593  
... ... @@ -622,7 +622,7 @@
622 622  = 7. Order Info =
623 623  
624 624  
625 -Part Number: (% style="color:blue" %)**DDS20-NB-XX**
663 +Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
626 626  
627 627  (% style="color:red" %)**XX**(%%):
628 628  
... ... @@ -638,7 +638,7 @@
638 638  
639 639  (% style="color:#037691" %)**Package Includes**:
640 640  
641 -* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1
679 +* S31-NB or S31-NB NB-IoT Sensor Node x 1
642 642  
643 643  * External antenna x 1
644 644