Last modified by Mengting Qiu on 2025/08/06 17:02

From version 175.20
edited by Xiaoling
on 2022/06/15 11:08
Change comment: There is no comment for this version
To version 172.6
edited by Xiaoling
on 2022/06/15 09:58
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -102,7 +102,6 @@
102 102  
103 103  
104 104  
105 -
106 106  == 1.3  Suitable Container & Liquid ==
107 107  
108 108  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -114,7 +114,6 @@
114 114  
115 115  
116 116  
117 -
118 118  == 1.4  Mechanical ==
119 119  
120 120  [[image:image-20220615090910-1.png]]
... ... @@ -213,6 +213,9 @@
213 213  * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
214 214  * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
215 215  
214 +
215 +
216 +
216 216  == 1.8  Pin mapping and power on ==
217 217  
218 218  
... ... @@ -226,7 +226,7 @@
226 226  == 2.1  How it works ==
227 227  
228 228  (((
229 -The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
230 +The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
230 230  )))
231 231  
232 232  (((
... ... @@ -320,7 +320,7 @@
320 320  
321 321  (((
322 322  (((
323 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
324 +LDDS20 will uplink payload via LoRaWAN with below payload format:
324 324  
325 325  Uplink payload includes in total 8 bytes.
326 326  Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
... ... @@ -368,12 +368,16 @@
368 368  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" %)** 0605(H) = 1541 (D) = 1541 mm.**
369 369  )))
370 370  
371 -* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
372 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
373 373  
373 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
374 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
375 +
376 +
377 +
378 +
374 374  === 2.3.3  Interrupt Pin ===
375 375  
376 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
381 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
377 377  
378 378  **Example:**
379 379  
... ... @@ -414,305 +414,736 @@
414 414  While using TTN network, you can add the payload format to decode the payload.
415 415  
416 416  
417 -[[image:1655261164557-670.png]]
422 +[[image:1654850829385-439.png]]
418 418  
419 419  The payload decoder function for TTN V3 is here:
420 420  
421 421  (((
422 -LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
427 +LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
423 423  )))
424 424  
425 425  
426 426  
427 -== 2.4  Downlink Payload ==
432 +== 2.4  Uplink Interval ==
428 428  
429 -By default, LDDS20 prints the downlink payload to console port.
434 +The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
430 430  
431 -[[image:image-20220615100930-15.png]]
432 432  
433 433  
434 -**Examples:**
438 +== 2.5  ​Show Data in DataCake IoT Server ==
435 435  
440 +(((
441 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
442 +)))
436 436  
437 -* (% style="color:blue" %)**Set TDC**
444 +(((
445 +
446 +)))
438 438  
439 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
448 +(((
449 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
450 +)))
440 440  
441 -Payload:    01 00 00 1E    TDC=30S
452 +(((
453 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
454 +)))
442 442  
443 -Payload:    01 00 00 3C    TDC=60S
444 444  
457 +[[image:1654592790040-760.png]]
445 445  
446 -* (% style="color:blue" %)**Reset**
447 447  
448 -If payload = 0x04FF, it will reset the LDDS20
460 +[[image:1654592800389-571.png]]
449 449  
450 450  
451 -* (% style="color:blue" %)**CFM**
463 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
452 452  
453 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
465 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
454 454  
467 +[[image:1654851029373-510.png]]
455 455  
456 456  
457 -== 2.5  ​Show Data in DataCake IoT Server ==
470 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
458 458  
472 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
473 +
474 +
475 +
476 +== 2.6  Frequency Plans ==
477 +
459 459  (((
460 -[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
479 +The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
461 461  )))
462 462  
482 +
483 +
484 +=== 2.6.1  EU863-870 (EU868) ===
485 +
463 463  (((
487 +(% style="color:blue" %)**Uplink:**
488 +)))
489 +
490 +(((
491 +868.1 - SF7BW125 to SF12BW125
492 +)))
493 +
494 +(((
495 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
496 +)))
497 +
498 +(((
499 +868.5 - SF7BW125 to SF12BW125
500 +)))
501 +
502 +(((
503 +867.1 - SF7BW125 to SF12BW125
504 +)))
505 +
506 +(((
507 +867.3 - SF7BW125 to SF12BW125
508 +)))
509 +
510 +(((
511 +867.5 - SF7BW125 to SF12BW125
512 +)))
513 +
514 +(((
515 +867.7 - SF7BW125 to SF12BW125
516 +)))
517 +
518 +(((
519 +867.9 - SF7BW125 to SF12BW125
520 +)))
521 +
522 +(((
523 +868.8 - FSK
524 +)))
525 +
526 +(((
464 464  
465 465  )))
466 466  
467 467  (((
468 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
531 +(% style="color:blue" %)**Downlink:**
469 469  )))
470 470  
471 471  (((
472 -(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
535 +Uplink channels 1-9 (RX1)
473 473  )))
474 474  
538 +(((
539 +869.525 - SF9BW125 (RX2 downlink only)
540 +)))
475 475  
476 -[[image:1654592790040-760.png]]
477 477  
478 478  
479 -[[image:1654592800389-571.png]]
544 +=== 2.6.2  US902-928(US915) ===
480 480  
546 +(((
547 +Used in USA, Canada and South America. Default use CHE=2
481 481  
482 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
549 +(% style="color:blue" %)**Uplink:**
483 483  
484 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
551 +903.9 - SF7BW125 to SF10BW125
485 485  
486 -[[image:1654851029373-510.png]]
553 +904.1 - SF7BW125 to SF10BW125
487 487  
555 +904.3 - SF7BW125 to SF10BW125
488 488  
489 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
557 +904.5 - SF7BW125 to SF10BW125
490 490  
491 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
559 +904.7 - SF7BW125 to SF10BW125
492 492  
561 +904.9 - SF7BW125 to SF10BW125
493 493  
563 +905.1 - SF7BW125 to SF10BW125
494 494  
495 -== 2. LED Indicator ==
565 +905.3 - SF7BW125 to SF10BW125
496 496  
497 -The LDDS20 has an internal LED which is to show the status of different state.
498 498  
568 +(% style="color:blue" %)**Downlink:**
499 499  
500 -* Blink once when device power on.
501 -* The device detects the sensor and flashes 5 times.
502 -* Solid ON for 5 seconds once device successful Join the network.
503 -* Blink once when device transmit a packet.
570 +923.3 - SF7BW500 to SF12BW500
504 504  
505 -== 2. Firmware Change Log ==
572 +923.9 - SF7BW500 to SF12BW500
506 506  
574 +924.5 - SF7BW500 to SF12BW500
507 507  
576 +925.1 - SF7BW500 to SF12BW500
577 +
578 +925.7 - SF7BW500 to SF12BW500
579 +
580 +926.3 - SF7BW500 to SF12BW500
581 +
582 +926.9 - SF7BW500 to SF12BW500
583 +
584 +927.5 - SF7BW500 to SF12BW500
585 +
586 +923.3 - SF12BW500(RX2 downlink only)
587 +
588 +
589 +
590 +)))
591 +
592 +=== 2.6.3  CN470-510 (CN470) ===
593 +
508 508  (((
509 -**Firmware download link:  **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
595 +Used in China, Default use CHE=1
510 510  )))
511 511  
512 512  (((
599 +(% style="color:blue" %)**Uplink:**
600 +)))
601 +
602 +(((
603 +486.3 - SF7BW125 to SF12BW125
604 +)))
605 +
606 +(((
607 +486.5 - SF7BW125 to SF12BW125
608 +)))
609 +
610 +(((
611 +486.7 - SF7BW125 to SF12BW125
612 +)))
613 +
614 +(((
615 +486.9 - SF7BW125 to SF12BW125
616 +)))
617 +
618 +(((
619 +487.1 - SF7BW125 to SF12BW125
620 +)))
621 +
622 +(((
623 +487.3 - SF7BW125 to SF12BW125
624 +)))
625 +
626 +(((
627 +487.5 - SF7BW125 to SF12BW125
628 +)))
629 +
630 +(((
631 +487.7 - SF7BW125 to SF12BW125
632 +)))
633 +
634 +(((
513 513  
514 514  )))
515 515  
516 516  (((
517 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
639 +(% style="color:blue" %)**Downlink:**
518 518  )))
519 519  
642 +(((
643 +506.7 - SF7BW125 to SF12BW125
644 +)))
520 520  
646 +(((
647 +506.9 - SF7BW125 to SF12BW125
648 +)))
521 521  
522 -== 2.8  Battery Analysis ==
650 +(((
651 +507.1 - SF7BW125 to SF12BW125
652 +)))
523 523  
654 +(((
655 +507.3 - SF7BW125 to SF12BW125
656 +)))
524 524  
658 +(((
659 +507.5 - SF7BW125 to SF12BW125
660 +)))
525 525  
662 +(((
663 +507.7 - SF7BW125 to SF12BW125
664 +)))
526 526  
527 -=== 2.8.1  Battery Type ===
666 +(((
667 +507.9 - SF7BW125 to SF12BW125
668 +)))
528 528  
529 -The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
670 +(((
671 +508.1 - SF7BW125 to SF12BW125
672 +)))
530 530  
674 +(((
675 +505.3 - SF12BW125 (RX2 downlink only)
676 +)))
531 531  
532 -The battery related documents as below:
533 533  
534 -* (((
535 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
679 +
680 +=== 2.6.4  AU915-928(AU915) ===
681 +
682 +(((
683 +Default use CHE=2
684 +
685 +(% style="color:blue" %)**Uplink:**
686 +
687 +916.8 - SF7BW125 to SF12BW125
688 +
689 +917.0 - SF7BW125 to SF12BW125
690 +
691 +917.2 - SF7BW125 to SF12BW125
692 +
693 +917.4 - SF7BW125 to SF12BW125
694 +
695 +917.6 - SF7BW125 to SF12BW125
696 +
697 +917.8 - SF7BW125 to SF12BW125
698 +
699 +918.0 - SF7BW125 to SF12BW125
700 +
701 +918.2 - SF7BW125 to SF12BW125
702 +
703 +
704 +(% style="color:blue" %)**Downlink:**
705 +
706 +923.3 - SF7BW500 to SF12BW500
707 +
708 +923.9 - SF7BW500 to SF12BW500
709 +
710 +924.5 - SF7BW500 to SF12BW500
711 +
712 +925.1 - SF7BW500 to SF12BW500
713 +
714 +925.7 - SF7BW500 to SF12BW500
715 +
716 +926.3 - SF7BW500 to SF12BW500
717 +
718 +926.9 - SF7BW500 to SF12BW500
719 +
720 +927.5 - SF7BW500 to SF12BW500
721 +
722 +923.3 - SF12BW500(RX2 downlink only)
723 +
724 +
725 +
536 536  )))
537 -* (((
538 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
727 +
728 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
729 +
730 +(((
731 +(% style="color:blue" %)**Default Uplink channel:**
539 539  )))
540 -* (((
541 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
733 +
734 +(((
735 +923.2 - SF7BW125 to SF10BW125
542 542  )))
543 543  
544 - [[image:image-20220615102527-16.png]]
738 +(((
739 +923.4 - SF7BW125 to SF10BW125
740 +)))
545 545  
742 +(((
743 +
744 +)))
546 546  
746 +(((
747 +(% style="color:blue" %)**Additional Uplink Channel**:
748 +)))
547 547  
548 -== 2.8.2  Battery Note ==
750 +(((
751 +(OTAA mode, channel added by JoinAccept message)
752 +)))
549 549  
550 -The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to uplink data, then the battery life may be decreased.
754 +(((
755 +
756 +)))
551 551  
758 +(((
759 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
760 +)))
552 552  
762 +(((
763 +922.2 - SF7BW125 to SF10BW125
764 +)))
553 553  
554 -=== 2.8.3  Replace the battery ===
766 +(((
767 +922.4 - SF7BW125 to SF10BW125
768 +)))
555 555  
556 556  (((
557 -You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
771 +922.6 - SF7BW125 to SF10BW125
558 558  )))
559 559  
560 560  (((
775 +922.8 - SF7BW125 to SF10BW125
776 +)))
777 +
778 +(((
779 +923.0 - SF7BW125 to SF10BW125
780 +)))
781 +
782 +(((
783 +922.0 - SF7BW125 to SF10BW125
784 +)))
785 +
786 +(((
561 561  
562 562  )))
563 563  
564 564  (((
565 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
791 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
566 566  )))
567 567  
794 +(((
795 +923.6 - SF7BW125 to SF10BW125
796 +)))
568 568  
798 +(((
799 +923.8 - SF7BW125 to SF10BW125
800 +)))
569 569  
570 -== 2.8.4  Battery Life Analyze ==
802 +(((
803 +924.0 - SF7BW125 to SF10BW125
804 +)))
571 571  
572 -Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
806 +(((
807 +924.2 - SF7BW125 to SF10BW125
808 +)))
573 573  
574 -[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
810 +(((
811 +924.4 - SF7BW125 to SF10BW125
812 +)))
575 575  
814 +(((
815 +924.6 - SF7BW125 to SF10BW125
816 +)))
576 576  
818 +(((
819 +
820 +)))
577 577  
578 -= 3.  Using the AT Commands =
822 +(((
823 +(% style="color:blue" %)**Downlink:**
824 +)))
579 579  
580 580  (((
827 +Uplink channels 1-8 (RX1)
828 +)))
829 +
581 581  (((
831 +923.2 - SF10BW125 (RX2)
832 +)))
833 +
834 +
835 +
836 +=== 2.6.6  KR920-923 (KR920) ===
837 +
838 +(((
839 +(% style="color:blue" %)**Default channel:**
840 +)))
841 +
842 +(((
843 +922.1 - SF7BW125 to SF12BW125
844 +)))
845 +
846 +(((
847 +922.3 - SF7BW125 to SF12BW125
848 +)))
849 +
850 +(((
851 +922.5 - SF7BW125 to SF12BW125
852 +)))
853 +
854 +(((
582 582  
583 583  )))
857 +
858 +(((
859 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
584 584  )))
585 585  
586 -== 3.1  Access AT Commands ==
862 +(((
863 +922.1 - SF7BW125 to SF12BW125
864 +)))
587 587  
588 -LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
866 +(((
867 +922.3 - SF7BW125 to SF12BW125
868 +)))
589 589  
870 +(((
871 +922.5 - SF7BW125 to SF12BW125
872 +)))
590 590  
591 -[[image:image-20220610172924-4.png||height="483" width="988"]]
874 +(((
875 +922.7 - SF7BW125 to SF12BW125
876 +)))
592 592  
878 +(((
879 +922.9 - SF7BW125 to SF12BW125
880 +)))
593 593  
594 -Or if you have below board, use below connection:
882 +(((
883 +923.1 - SF7BW125 to SF12BW125
884 +)))
595 595  
886 +(((
887 +923.3 - SF7BW125 to SF12BW125
888 +)))
596 596  
597 -[[image:image-20220610172924-5.png]]
890 +(((
891 +
892 +)))
598 598  
894 +(((
895 +(% style="color:blue" %)**Downlink:**
896 +)))
599 599  
600 600  (((
601 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
899 +Uplink channels 1-7(RX1)
602 602  )))
603 603  
902 +(((
903 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
904 +)))
604 604  
605 - [[image:image-20220610172924-6.png||height="601" width="860"]]
606 606  
607 -Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
608 608  
908 +=== 2.6.7  IN865-867 (IN865) ===
609 609  
610 -AT+<CMD>?  :  Help on <CMD>
910 +(((
911 +(% style="color:blue" %)**Uplink:**
912 +)))
611 611  
612 -AT+<CMD>  :  Run <CMD>
914 +(((
915 +865.0625 - SF7BW125 to SF12BW125
916 +)))
613 613  
614 -AT+<CMD>=<value>  :  Set the value
918 +(((
919 +865.4025 - SF7BW125 to SF12BW125
920 +)))
615 615  
616 -AT+<CMD>=?  :  Get the value
922 +(((
923 +865.9850 - SF7BW125 to SF12BW125
924 +)))
617 617  
926 +(((
927 +
928 +)))
618 618  
619 -(% style="color:#037691" %)** General Commands :**     
930 +(((
931 +(% style="color:blue" %)**Downlink:**
932 +)))
620 620  
621 -AT  :  Attention       
934 +(((
935 +Uplink channels 1-3 (RX1)
936 +)))
622 622  
623 -AT?  :  Short Help     
938 +(((
939 +866.550 - SF10BW125 (RX2)
940 +)))
624 624  
625 -ATZ :  MCU Reset    
626 626  
627 -AT+TDC :  Application Data Transmission Interval 
628 628  
944 +== 2.7  LED Indicator ==
629 629  
630 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
946 +The LDDS75 has an internal LED which is to show the status of different state.
631 631  
632 -AT+APPEUI  :  Application EUI      
633 633  
634 -AT+APPKEY  :  Application Key     
949 +* Blink once when device power on.
950 +* The device detects the sensor and flashes 5 times.
951 +* Solid ON for 5 seconds once device successful Join the network.
952 +* Blink once when device transmit a packet.
635 635  
636 -AT+APPSKEY  :  Application Session Key
954 +== 2.8  ​Firmware Change Log ==
637 637  
638 -AT+DADDR :  Device Address     
639 639  
640 -AT+DEUI :  Device EUI     
957 +(((
958 +**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
959 +)))
641 641  
642 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
961 +(((
962 +
963 +)))
643 643  
644 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
965 +(((
966 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
967 +)))
645 645  
646 -AT+CFM :  Confirm Mode       
647 647  
648 -AT+CFS :  Confirm Status       
649 649  
650 -AT+JOIN  :  Join LoRa? Network       
971 +== 2.9  Mechanical ==
651 651  
652 -AT+NJM  :  LoRa? Network Join Mode    
653 653  
654 -AT+NJS  :  LoRa? Network Join Status    
974 +[[image:image-20220610172003-1.png]]
655 655  
656 -AT+RECV  :  Print Last Received Data in Raw Format
657 657  
658 -AT+RECVB :  Print Last Received Data in Binary Format      
977 +[[image:image-20220610172003-2.png]]
659 659  
660 -AT+SEND  :  Send Text Data      
661 661  
662 -AT+SENB  :  Send Hexadecimal Data
663 663  
981 +== 2.10  Battery Analysis ==
664 664  
665 -(% style="color:#037691" %)** LoRa Network Management :**
983 +=== 2.10.1  Battery Type ===
666 666  
667 -AT+AD Adaptive Rate
985 +The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
668 668  
669 -AT+CLASS  :  LoRa Class(Currently only support class A
670 670  
671 -AT+DCS  :  Duty Cycle Settin
988 +The battery related documents as below:
672 672  
673 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
990 +* (((
991 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
992 +)))
993 +* (((
994 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
995 +)))
996 +* (((
997 +[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
998 +)))
674 674  
675 -AT+FCD  :  Frame Counter Downlink       
1000 + [[image:image-20220610172400-3.png]]
676 676  
677 -AT+FCU  :  Frame Counter Uplink   
678 678  
679 -AT+JN1DL  :  Join Accept Delay1
680 680  
681 -AT+JN2DL  :  Join Accept Delay2
1004 +=== 2.10.2  Replace the battery ===
682 682  
683 -AT+PNM  :  Public Network Mode   
1006 +(((
1007 +You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
1008 +)))
684 684  
685 -AT+RX1DL  :  Receive Delay1      
1010 +(((
1011 +
1012 +)))
686 686  
687 -AT+RX2DL  :  Receive Delay2      
1014 +(((
1015 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
1016 +)))
688 688  
689 -AT+RX2DR  :  Rx2 Window Data Rate 
690 690  
691 -AT+RX2FQ  :  Rx2 Window Frequency
692 692  
693 -AT+TXP  :  Transmit Power
1020 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
694 694  
1022 +(((
1023 +(((
1024 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1025 +)))
1026 +)))
695 695  
696 -(% style="color:#037691" %)** Information :**
1028 +* (((
1029 +(((
1030 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1031 +)))
1032 +)))
1033 +* (((
1034 +(((
1035 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1036 +)))
1037 +)))
697 697  
698 -AT+RSSI  :  RSSI of the Last Received Packet   
1039 +(((
1040 +(((
1041 +
1042 +)))
699 699  
700 -AT+SNR  :  SNR of the Last Received Packet   
1044 +(((
1045 +There are two kinds of commands to configure LDDS75, they are:
1046 +)))
1047 +)))
701 701  
702 -AT+VER  :  Image Version and Frequency Band       
1049 +* (((
1050 +(((
1051 +(% style="color:#4f81bd" %)** General Commands**.
1052 +)))
1053 +)))
703 703  
704 -AT+FDR  :  Factory Data Reset
1055 +(((
1056 +(((
1057 +These commands are to configure:
1058 +)))
1059 +)))
705 705  
706 -AT+PORT  :  Application Port    
1061 +* (((
1062 +(((
1063 +General system settings like: uplink interval.
1064 +)))
1065 +)))
1066 +* (((
1067 +(((
1068 +LoRaWAN protocol & radio related command.
1069 +)))
1070 +)))
707 707  
708 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1072 +(((
1073 +(((
1074 +They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1075 +)))
1076 +)))
709 709  
710 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
1078 +(((
1079 +(((
1080 +
1081 +)))
1082 +)))
711 711  
1084 +* (((
1085 +(((
1086 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1087 +)))
1088 +)))
712 712  
1090 +(((
1091 +(((
1092 +These commands only valid for LDDS75, as below:
1093 +)))
1094 +)))
713 713  
714 -== 3.2  Set Interrupt Mode ==
715 715  
1097 +
1098 +== 3.1  Access AT Commands ==
1099 +
1100 +LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1101 +
1102 +[[image:image-20220610172924-4.png||height="483" width="988"]]
1103 +
1104 +
1105 +Or if you have below board, use below connection:
1106 +
1107 +
1108 +[[image:image-20220610172924-5.png]]
1109 +
1110 +
1111 +(((
1112 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1113 +)))
1114 +
1115 +
1116 + [[image:image-20220610172924-6.png||height="601" width="860"]]
1117 +
1118 +
1119 +
1120 +== 3.2  Set Transmit Interval Time ==
1121 +
1122 +Feature: Change LoRaWAN End Node Transmit Interval.
1123 +
1124 +(% style="color:#037691" %)**AT Command: AT+TDC**
1125 +
1126 +[[image:image-20220610173409-7.png]]
1127 +
1128 +
1129 +(((
1130 +(% style="color:#037691" %)**Downlink Command: 0x01**
1131 +)))
1132 +
1133 +(((
1134 +(((
1135 +Format: Command Code (0x01) followed by 3 bytes time value.
1136 +
1137 +(((
1138 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1139 +)))
1140 +
1141 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1142 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1143 +)))
1144 +)))
1145 +
1146 +
1147 +
1148 +
1149 +
1150 +== 3.3  Set Interrupt Mode ==
1151 +
716 716  Feature, Set Interrupt mode for GPIO_EXIT.
717 717  
718 718  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -731,23 +731,27 @@
731 731  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
732 732  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
733 733  
734 -
735 -
736 736  = 4.  FAQ =
737 737  
738 -== 4.1  What is the frequency plan for LDDS20? ==
1172 +== 4.1  What is the frequency plan for LDDS75? ==
739 739  
740 -LDDS20 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
1174 +LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
741 741  
742 742  
743 743  
744 744  == 4.2  How to change the LoRa Frequency Bands/Region ==
745 745  
746 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
1180 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
747 747  When downloading the images, choose the required image file for download. ​
748 748  
749 749  
750 750  
1185 +== 4.3  Can I use LDDS75 in condensation environment? ==
1186 +
1187 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1188 +
1189 +
1190 +
751 751  = 5.  Trouble Shooting =
752 752  
753 753  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -767,7 +767,7 @@
767 767  = 6.  Order Info =
768 768  
769 769  
770 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
1210 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
771 771  
772 772  
773 773  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -781,20 +781,18 @@
781 781  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
782 782  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
783 783  
1224 +(% style="color:blue" %)**YY**(%%): Battery Option
784 784  
1226 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1227 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1228 +
785 785  = 7. ​ Packing Info =
786 786  
787 787  
788 788  **Package Includes**:
789 789  
790 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1234 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
791 791  
792 -
793 -(% style="color:red" %)**Note:**
794 -
795 -(% style="color:red" %)**Ultrasonic coupling paste**(%%) and(% style="color:red" %)** Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
796 -
797 -
798 798  **Dimension and weight**:
799 799  
800 800  * Device Size: cm
... ... @@ -802,7 +802,6 @@
802 802  * Package Size / pcs : cm
803 803  * Weight / pcs : g
804 804  
805 -
806 806  = 8.  ​Support =
807 807  
808 808  * 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.
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