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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 **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"]]
... ... @@ -295,7 +295,7 @@
295 295  (% style="display:none" %)
296 296  
297 297  
298 -= 2. Use S31-NB to communicate with IoT Server =
298 += 2. Use DDS20-NB to communicate with IoT Server =
299 299  
300 300  == 2.1 Send data to IoT server via NB-IoT network ==
301 301  
... ... @@ -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 S31B-NB & S31-NB
399 +(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS20-NB
400 400  
401 401  (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
402 402  
... ... @@ -423,20 +423,6 @@
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 -
440 440  (% style="color:blue" %)**TimeStamp:   **
441 441  
442 442  Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
... ... @@ -479,7 +479,7 @@
479 479  == 2.4 Multi-Samplings and One uplink ==
480 480  
481 481  
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:
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:
483 483  
484 484  * (% 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)
485 485  
... ... @@ -490,35 +490,11 @@
490 490  [[image:1692424376354-959.png]]
491 491  
492 492  
493 -== 2.5 Humidity and Temperature alarm function ==
479 +== 2.5 Trggier an uplink by external interrupt ==
494 494  
495 495  
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.
482 +DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
497 497  
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 -
522 522  (% style="color:blue" %)**AT command:**
523 523  
524 524  * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
... ... @@ -531,12 +531,12 @@
531 531  
532 532  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
533 533  
534 -= 3. Configure S31x-NB =
496 += 3. Configure DDS20-NB =
535 535  
536 536  == 3.1 Configure Methods ==
537 537  
538 538  
539 -S31x-NB supports below configure method:
501 +DDS20-NB supports below configure method:
540 540  
541 541  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
542 542  
... ... @@ -625,7 +625,7 @@
625 625  = 4. Battery & Power Consumption =
626 626  
627 627  
628 -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.
629 629  
630 630  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
631 631  
... ... @@ -660,7 +660,7 @@
660 660  = 7. Order Info =
661 661  
662 662  
663 -Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
625 +Part Number: (% style="color:blue" %)**DDS20-NB-XX**
664 664  
665 665  (% style="color:red" %)**XX**(%%):
666 666  
... ... @@ -676,7 +676,7 @@
676 676  
677 677  (% style="color:#037691" %)**Package Includes**:
678 678  
679 -* S31-NB or S31-NB NB-IoT Sensor Node x 1
641 +* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1
680 680  
681 681  * External antenna x 1
682 682