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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.14
edited by Xiaoling
on 2023/09/11 15:26
Change comment: There is no comment for this version
To version 84.21
edited by Xiaoling
on 2023/09/11 15:52
Change comment: There is no comment for this version

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... ... @@ -466,10 +466,96 @@
466 466  
467 467  (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
468 468  
469 +== 2.3  ​Uplink Payload ==
469 469  
470 -== 2.3 Test Uplink and Change Update Interval ==
471 471  
472 +(((
473 +DDS20-NB will uplink payload via LoRaWAN with below payload format: 
474 +)))
472 472  
476 +(((
477 +Uplink payload includes in total 8 bytes.
478 +)))
479 +
480 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
481 +|=(% style="width: 95px; background-color:#4F81BD;color:white" %)Size(bytes)|=(% style="width: 61px; background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)1|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)1
482 +|(% style="width:95px" %)Value|(% style="width:61px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
483 +[[Distance>>||anchor="H2.3.2A0Distance"]]
484 +(unit: mm)
485 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
486 +[[Temperature (Optional)>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
487 +)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
488 +
489 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20230702135733.png?width=964&height=215&rev=1.1||alt="微信截图_20230702135733.png"]]
490 +
491 +
492 +=== 2.3.1  Battery Info ===
493 +
494 +
495 +Check the battery voltage for DDS20-NB.
496 +
497 +Ex1: 0x0B45 = 2885mV
498 +
499 +Ex2: 0x0B49 = 2889mV
500 +
501 +
502 +=== 2.3.2  Distance ===
503 +
504 +
505 +(((
506 +Get the distance. Flat object range 20mm - 2000mm.
507 +)))
508 +
509 +(((
510 +For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
511 +
512 +(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
513 +)))
514 +
515 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
516 +
517 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
518 +
519 +=== 2.3.3  Interrupt Pin ===
520 +
521 +
522 +This data field shows if this packet is generated by interrupt or not.
523 +
524 +**Example:**
525 +
526 +0x00: Normal uplink packet.
527 +
528 +0x01: Interrupt Uplink Packet.
529 +
530 +
531 +=== 2.3.4  DS18B20 Temperature sensor ===
532 +
533 +
534 +This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
535 +
536 +**Example**:
537 +
538 +If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
539 +
540 +If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
541 +
542 +
543 +=== 2.3.5  Sensor Flag ===
544 +
545 +
546 +(((
547 +0x01: Detect Ultrasonic Sensor
548 +)))
549 +
550 +(((
551 +0x00: No Ultrasonic Sensor
552 +
553 +
554 +)))
555 +
556 +== 2.4 Test Uplink and Change Update Interval ==
557 +
558 +
473 473  By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
474 474  
475 475  User can use below commands to change the (% style="color:blue" %)**uplink interval**.
... ... @@ -479,7 +479,7 @@
479 479  User can also push the button for more than 1 seconds to activate an uplink.
480 480  
481 481  
482 -== 2.4 Multi-Samplings and One uplink ==
568 +== 2.5 Multi-Samplings and One uplink ==
483 483  
484 484  
485 485  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:
... ... @@ -493,7 +493,7 @@
493 493  [[image:1692424376354-959.png]]
494 494  
495 495  
496 -== 2.5 Trggier an uplink by external interrupt ==
582 +== 2.6 Trggier an uplink by external interrupt ==
497 497  
498 498  
499 499  DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
... ... @@ -636,9 +636,20 @@
636 636  [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
637 637  
638 638  
639 -= 7. Order Info =
725 += 7.  Trouble Shooting =
640 640  
727 +== 7.1  Why i always see 0x0000 or 0 for the distance value? ==
641 641  
729 +
730 +(((
731 +DDS20-NB has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-NB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
732 +
733 +If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
734 +)))
735 +
736 += 8. Order Info =
737 +
738 +
642 642  Part Number: (% style="color:blue" %)**DDS20-NB-XX**
643 643  
644 644  (% style="color:red" %)**XX**(%%):
... ... @@ -650,7 +650,7 @@
650 650  (% style="color:#037691" %)**1NCE SIM Card NB-IoT network coverage**(%%): Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Malta, Netherlands, Norway, Puerto Rico, Russia, Slovak , Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands
651 651  
652 652  
653 -= 8. ​Packing Info =
750 += 9. ​Packing Info =
654 654  
655 655  
656 656  (% style="color:#037691" %)**Package Includes**:
... ... @@ -669,7 +669,7 @@
669 669  
670 670  * Weight / pcs : 180g
671 671  
672 -= 9. Support =
769 += 10. Support =
673 673  
674 674  
675 675  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.