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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-NAsupports 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-NAis 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-NAhas 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 S 31-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 S 31B-NB& S31-NB399 +(% 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, S 31-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 HumidityandTemperaturearmfunction ==479 +== 2.5 Trggier an uplink by external interrupt == 494 494 495 495 496 - Oneachmplingdefineby AT+TR ( default900s or15 minutes),whenhevalueexceedtherange,itwilltriggeranAlarm andimmediately sendsauplink.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 S 31x-NB =496 += 3. Configure DDS20-NB = 535 535 536 536 == 3.1 Configure Methods == 537 537 538 538 539 -S 31x-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 -S 31x-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" %)**S 31-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 -* S 31-NBor S31-NBNB-IoTSensorNode x 1641 +* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1 680 680 681 681 * External antenna x 1 682 682