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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.12
edited by Xiaoling
on 2022/06/15 10:59
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

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Content
... ... @@ -100,6 +100,8 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -109,6 +109,8 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
114 +
115 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
... ... @@ -198,6 +198,9 @@
198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
205 +
206 +
207 +
201 201  == 1.7  Precautions ==
202 202  
203 203  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
... ... @@ -204,6 +204,9 @@
204 204  * 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.
205 205  * 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.
206 206  
214 +
215 +
216 +
207 207  == 1.8  Pin mapping and power on ==
208 208  
209 209  
... ... @@ -217,7 +217,7 @@
217 217  == 2.1  How it works ==
218 218  
219 219  (((
220 -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.
221 221  )))
222 222  
223 223  (((
... ... @@ -311,7 +311,7 @@
311 311  
312 312  (((
313 313  (((
314 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
324 +LDDS20 will uplink payload via LoRaWAN with below payload format:
315 315  
316 316  Uplink payload includes in total 8 bytes.
317 317  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).
... ... @@ -359,12 +359,16 @@
359 359  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.**
360 360  )))
361 361  
362 -* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
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 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
367 -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.
368 368  
369 369  **Example:**
370 370  
... ... @@ -405,305 +405,736 @@
405 405  While using TTN network, you can add the payload format to decode the payload.
406 406  
407 407  
408 -[[image:1655261164557-670.png]]
422 +[[image:1654850829385-439.png]]
409 409  
410 410  The payload decoder function for TTN V3 is here:
411 411  
412 412  (((
413 -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/]]
414 414  )))
415 415  
416 416  
417 417  
418 -== 2.4  Downlink Payload ==
432 +== 2.4  Uplink Interval ==
419 419  
420 -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"]]
421 421  
422 -[[image:image-20220615100930-15.png]]
423 423  
424 424  
425 -**Examples:**
438 +== 2.5  ​Show Data in DataCake IoT Server ==
426 426  
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 +)))
427 427  
428 -* (% style="color:blue" %)**Set TDC**
444 +(((
445 +
446 +)))
429 429  
430 -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 +)))
431 431  
432 -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 +)))
433 433  
434 -Payload:    01 00 00 3C    TDC=60S
435 435  
457 +[[image:1654592790040-760.png]]
436 436  
437 -* (% style="color:blue" %)**Reset**
438 438  
439 -If payload = 0x04FF, it will reset the LDDS20
460 +[[image:1654592800389-571.png]]
440 440  
441 441  
442 -* (% style="color:blue" %)**CFM**
463 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
443 443  
444 -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.**
445 445  
467 +[[image:1654851029373-510.png]]
446 446  
447 447  
448 -== 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.
449 449  
472 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
473 +
474 +
475 +
476 +== 2.6  Frequency Plans ==
477 +
450 450  (((
451 -[[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.
452 452  )))
453 453  
482 +
483 +
484 +=== 2.6.1  EU863-870 (EU868) ===
485 +
454 454  (((
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 +(((
455 455  
456 456  )))
457 457  
458 458  (((
459 -(% 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:**
460 460  )))
461 461  
462 462  (((
463 -(% 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)
464 464  )))
465 465  
538 +(((
539 +869.525 - SF9BW125 (RX2 downlink only)
540 +)))
466 466  
467 -[[image:1654592790040-760.png]]
468 468  
469 469  
470 -[[image:1654592800389-571.png]]
544 +=== 2.6.2  US902-928(US915) ===
471 471  
546 +(((
547 +Used in USA, Canada and South America. Default use CHE=2
472 472  
473 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
549 +(% style="color:blue" %)**Uplink:**
474 474  
475 -(% 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
476 476  
477 -[[image:1654851029373-510.png]]
553 +904.1 - SF7BW125 to SF10BW125
478 478  
555 +904.3 - SF7BW125 to SF10BW125
479 479  
480 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
557 +904.5 - SF7BW125 to SF10BW125
481 481  
482 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
559 +904.7 - SF7BW125 to SF10BW125
483 483  
561 +904.9 - SF7BW125 to SF10BW125
484 484  
563 +905.1 - SF7BW125 to SF10BW125
485 485  
486 -== 2.6  LED Indicator ==
565 +905.3 - SF7BW125 to SF10BW125
487 487  
488 -The LDDS20 has an internal LED which is to show the status of different state.
489 489  
568 +(% style="color:blue" %)**Downlink:**
490 490  
491 -* Blink once when device power on.
492 -* The device detects the sensor and flashes 5 times.
493 -* Solid ON for 5 seconds once device successful Join the network.
494 -* Blink once when device transmit a packet.
570 +923.3 - SF7BW500 to SF12BW500
495 495  
496 -== 2.7  ​Firmware Change Log ==
572 +923.9 - SF7BW500 to SF12BW500
497 497  
574 +924.5 - SF7BW500 to SF12BW500
498 498  
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 +
499 499  (((
500 -**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
501 501  )))
502 502  
503 503  (((
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 +(((
504 504  
505 505  )))
506 506  
507 507  (((
508 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
639 +(% style="color:blue" %)**Downlink:**
509 509  )))
510 510  
642 +(((
643 +506.7 - SF7BW125 to SF12BW125
644 +)))
511 511  
646 +(((
647 +506.9 - SF7BW125 to SF12BW125
648 +)))
512 512  
513 -== 2.8  Battery Analysis ==
650 +(((
651 +507.1 - SF7BW125 to SF12BW125
652 +)))
514 514  
654 +(((
655 +507.3 - SF7BW125 to SF12BW125
656 +)))
515 515  
658 +(((
659 +507.5 - SF7BW125 to SF12BW125
660 +)))
516 516  
662 +(((
663 +507.7 - SF7BW125 to SF12BW125
664 +)))
517 517  
518 -=== 2.8.1  Battery Type ===
666 +(((
667 +507.9 - SF7BW125 to SF12BW125
668 +)))
519 519  
520 -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 +)))
521 521  
674 +(((
675 +505.3 - SF12BW125 (RX2 downlink only)
676 +)))
522 522  
523 -The battery related documents as below:
524 524  
525 -* (((
526 -[[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 +
527 527  )))
528 -* (((
529 -[[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:**
530 530  )))
531 -* (((
532 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
733 +
734 +(((
735 +923.2 - SF7BW125 to SF10BW125
533 533  )))
534 534  
535 - [[image:image-20220615102527-16.png]]
738 +(((
739 +923.4 - SF7BW125 to SF10BW125
740 +)))
536 536  
742 +(((
743 +
744 +)))
537 537  
746 +(((
747 +(% style="color:blue" %)**Additional Uplink Channel**:
748 +)))
538 538  
539 -== 2.8.2  Battery Note ==
750 +(((
751 +(OTAA mode, channel added by JoinAccept message)
752 +)))
540 540  
541 -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 +)))
542 542  
758 +(((
759 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
760 +)))
543 543  
762 +(((
763 +922.2 - SF7BW125 to SF10BW125
764 +)))
544 544  
545 -=== 2.8.3  Replace the battery ===
766 +(((
767 +922.4 - SF7BW125 to SF10BW125
768 +)))
546 546  
547 547  (((
548 -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
549 549  )))
550 550  
551 551  (((
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 +(((
552 552  
553 553  )))
554 554  
555 555  (((
556 -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**:
557 557  )))
558 558  
794 +(((
795 +923.6 - SF7BW125 to SF10BW125
796 +)))
559 559  
798 +(((
799 +923.8 - SF7BW125 to SF10BW125
800 +)))
560 560  
561 -== 2.8.4  Battery Life Analyze ==
802 +(((
803 +924.0 - SF7BW125 to SF10BW125
804 +)))
562 562  
563 -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 +)))
564 564  
565 -[[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 +)))
566 566  
814 +(((
815 +924.6 - SF7BW125 to SF10BW125
816 +)))
567 567  
818 +(((
819 +
820 +)))
568 568  
569 -= 3.  Using the AT Commands =
822 +(((
823 +(% style="color:blue" %)**Downlink:**
824 +)))
570 570  
571 571  (((
827 +Uplink channels 1-8 (RX1)
828 +)))
829 +
572 572  (((
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 +(((
573 573  
574 574  )))
857 +
858 +(((
859 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
575 575  )))
576 576  
577 -== 3.1  Access AT Commands ==
862 +(((
863 +922.1 - SF7BW125 to SF12BW125
864 +)))
578 578  
579 -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 +)))
580 580  
870 +(((
871 +922.5 - SF7BW125 to SF12BW125
872 +)))
581 581  
582 -[[image:image-20220610172924-4.png||height="483" width="988"]]
874 +(((
875 +922.7 - SF7BW125 to SF12BW125
876 +)))
583 583  
878 +(((
879 +922.9 - SF7BW125 to SF12BW125
880 +)))
584 584  
585 -Or if you have below board, use below connection:
882 +(((
883 +923.1 - SF7BW125 to SF12BW125
884 +)))
586 586  
886 +(((
887 +923.3 - SF7BW125 to SF12BW125
888 +)))
587 587  
588 -[[image:image-20220610172924-5.png]]
890 +(((
891 +
892 +)))
589 589  
894 +(((
895 +(% style="color:blue" %)**Downlink:**
896 +)))
590 590  
591 591  (((
592 -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)
593 593  )))
594 594  
902 +(((
903 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
904 +)))
595 595  
596 - [[image:image-20220610172924-6.png||height="601" width="860"]]
597 597  
598 -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/]].
599 599  
908 +=== 2.6.7  IN865-867 (IN865) ===
600 600  
601 -AT+<CMD>?  :  Help on <CMD>
910 +(((
911 +(% style="color:blue" %)**Uplink:**
912 +)))
602 602  
603 -AT+<CMD>  :  Run <CMD>
914 +(((
915 +865.0625 - SF7BW125 to SF12BW125
916 +)))
604 604  
605 -AT+<CMD>=<value>  :  Set the value
918 +(((
919 +865.4025 - SF7BW125 to SF12BW125
920 +)))
606 606  
607 -AT+<CMD>=?  :  Get the value
922 +(((
923 +865.9850 - SF7BW125 to SF12BW125
924 +)))
608 608  
926 +(((
927 +
928 +)))
609 609  
610 -(% style="color:#037691" %)** General Commands :**     
930 +(((
931 +(% style="color:blue" %)**Downlink:**
932 +)))
611 611  
612 -AT  :  Attention       
934 +(((
935 +Uplink channels 1-3 (RX1)
936 +)))
613 613  
614 -AT?  :  Short Help     
938 +(((
939 +866.550 - SF10BW125 (RX2)
940 +)))
615 615  
616 -ATZ :  MCU Reset    
617 617  
618 -AT+TDC :  Application Data Transmission Interval 
619 619  
944 +== 2.7  LED Indicator ==
620 620  
621 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
946 +The LDDS75 has an internal LED which is to show the status of different state.
622 622  
623 -AT+APPEUI  :  Application EUI      
624 624  
625 -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.
626 626  
627 -AT+APPSKEY  :  Application Session Key
954 +== 2.8  ​Firmware Change Log ==
628 628  
629 -AT+DADDR :  Device Address     
630 630  
631 -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 +)))
632 632  
633 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
961 +(((
962 +
963 +)))
634 634  
635 -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 +)))
636 636  
637 -AT+CFM :  Confirm Mode       
638 638  
639 -AT+CFS :  Confirm Status       
640 640  
641 -AT+JOIN  :  Join LoRa? Network       
971 +== 2.9  Mechanical ==
642 642  
643 -AT+NJM  :  LoRa? Network Join Mode    
644 644  
645 -AT+NJS  :  LoRa? Network Join Status    
974 +[[image:image-20220610172003-1.png]]
646 646  
647 -AT+RECV  :  Print Last Received Data in Raw Format
648 648  
649 -AT+RECVB :  Print Last Received Data in Binary Format      
977 +[[image:image-20220610172003-2.png]]
650 650  
651 -AT+SEND  :  Send Text Data      
652 652  
653 -AT+SENB  :  Send Hexadecimal Data
654 654  
981 +== 2.10  Battery Analysis ==
655 655  
656 -(% style="color:#037691" %)** LoRa Network Management :**
983 +=== 2.10.1  Battery Type ===
657 657  
658 -AT+ADR  :  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.
659 659  
660 -AT+CLASS  :  LoRa Class(Currently only support class A
661 661  
662 -AT+DCS  :  Duty Cycle Setting 
988 +The battery related documents as below:
663 663  
664 -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 +)))
665 665  
666 -AT+FCD  :  Frame Counter Downlink       
1000 + [[image:image-20220610172400-3.png]]
667 667  
668 -AT+FCU  :  Frame Counter Uplink   
669 669  
670 -AT+JN1DL  :  Join Accept Delay1
671 671  
672 -AT+JN2DL  :  Join Accept Delay2
1004 +=== 2.10.2  Replace the battery ===
673 673  
674 -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 +)))
675 675  
676 -AT+RX1DL  :  Receive Delay1      
1010 +(((
1011 +
1012 +)))
677 677  
678 -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 +)))
679 679  
680 -AT+RX2DR  :  Rx2 Window Data Rate 
681 681  
682 -AT+RX2FQ  :  Rx2 Window Frequency
683 683  
684 -AT+TXP  :  Transmit Power
1020 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
685 685  
1022 +(((
1023 +(((
1024 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1025 +)))
1026 +)))
686 686  
687 -(% 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 +)))
688 688  
689 -AT+RSSI  :  RSSI of the Last Received Packet   
1039 +(((
1040 +(((
1041 +
1042 +)))
690 690  
691 -AT+SNR  :  SNR of the Last Received Packet   
1044 +(((
1045 +There are two kinds of commands to configure LDDS75, they are:
1046 +)))
1047 +)))
692 692  
693 -AT+VER  :  Image Version and Frequency Band       
1049 +* (((
1050 +(((
1051 +(% style="color:#4f81bd" %)** General Commands**.
1052 +)))
1053 +)))
694 694  
695 -AT+FDR  :  Factory Data Reset
1055 +(((
1056 +(((
1057 +These commands are to configure:
1058 +)))
1059 +)))
696 696  
697 -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 +)))
698 698  
699 -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 +)))
700 700  
701 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
1078 +(((
1079 +(((
1080 +
1081 +)))
1082 +)))
702 702  
1084 +* (((
1085 +(((
1086 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1087 +)))
1088 +)))
703 703  
1090 +(((
1091 +(((
1092 +These commands only valid for LDDS75, as below:
1093 +)))
1094 +)))
704 704  
705 -== 3.2  Set Interrupt Mode ==
706 706  
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 +
707 707  Feature, Set Interrupt mode for GPIO_EXIT.
708 708  
709 709  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -722,22 +722,27 @@
722 722  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
723 723  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
724 724  
725 -
726 726  = 4.  FAQ =
727 727  
728 -== 4.1  What is the frequency plan for LDDS20? ==
1172 +== 4.1  What is the frequency plan for LDDS75? ==
729 729  
730 -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"]]
731 731  
732 732  
733 733  
734 734  == 4.2  How to change the LoRa Frequency Bands/Region ==
735 735  
736 -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"]].
737 737  When downloading the images, choose the required image file for download. ​
738 738  
739 739  
740 740  
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 +
741 741  = 5.  Trouble Shooting =
742 742  
743 743  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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