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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 171.2
edited by Xiaoling
on 2022/06/15 09:49
Change comment: There is no comment for this version
To version 174.9
edited by Xiaoling
on 2022/06/15 10:43
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -100,8 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 -
105 105  == 1.3  Suitable Container & Liquid ==
106 106  
107 107  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -111,8 +111,6 @@
111 111  ** Pure non metal material: <10 mm
112 112  * Pure liquid without irregular deposition.
113 113  
114 -
115 -
116 116  == 1.4  Mechanical ==
117 117  
118 118  [[image:image-20220615090910-1.png]]
... ... @@ -202,9 +202,6 @@
202 202  * Smart liquid control solution.
203 203  * Smart liquefied gas solution.
204 204  
205 -
206 -
207 -
208 208  == 1.7  Precautions ==
209 209  
210 210  * 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.
... ... @@ -211,9 +211,6 @@
211 211  * 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.
212 212  * 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.
213 213  
214 -
215 -
216 -
217 217  == 1.8  Pin mapping and power on ==
218 218  
219 219  
... ... @@ -227,7 +227,7 @@
227 227  == 2.1  How it works ==
228 228  
229 229  (((
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.
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.
231 231  )))
232 232  
233 233  (((
... ... @@ -287,6 +287,7 @@
287 287  [[image:image-20220610161353-7.png]]
288 288  
289 289  
280 +
290 290  You can also choose to create the device manually.
291 291  
292 292   [[image:image-20220610161538-8.png]]
... ... @@ -299,16 +299,17 @@
299 299  
300 300  
301 301  
302 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
303 303  
304 304  
305 305  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
306 306  
307 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
308 308  
309 309  
301 +
310 310  (((
311 -(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
303 +(% style="color:blue" %)**Step 3**(%%)**:**  The LDDS20 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
312 312  )))
313 313  
314 314  [[image:1654849068701-275.png]]
... ... @@ -319,12 +319,10 @@
319 319  
320 320  (((
321 321  (((
322 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
323 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
324 324  
325 -(((
326 -Uplink payload includes in total 4 bytes.
327 -Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
316 +Uplink payload includes in total 8 bytes.
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).
328 328  )))
329 329  )))
330 330  
... ... @@ -351,7 +351,7 @@
351 351  === 2.3.1  Battery Info ===
352 352  
353 353  
354 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
355 355  
356 356  Ex1: 0x0B45 = 2885mV
357 357  
... ... @@ -362,20 +362,21 @@
362 362  === 2.3.2  Distance ===
363 363  
364 364  (((
365 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
366 366  )))
367 367  
368 368  (((
369 -For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
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.**
370 370  )))
371 371  
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.
372 372  
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.
375 375  
366 +
376 376  === 2.3.3  Interrupt Pin ===
377 377  
378 -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.
369 +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.
379 379  
380 380  **Example:**
381 381  
... ... @@ -421,699 +421,300 @@
421 421  The payload decoder function for TTN V3 is here:
422 422  
423 423  (((
424 -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/]]
415 +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/]]
425 425  )))
426 426  
427 427  
428 428  
429 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
430 430  
431 -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"]]
422 +By default, LDDS20 prints the downlink payload to console port.
432 432  
424 +[[image:image-20220615100930-15.png]]
433 433  
434 434  
435 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
436 436  
437 -(((
438 -[[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:
439 -)))
440 440  
441 -(((
442 -
443 -)))
430 +* (% style="color:blue" %)**Set TDC**
444 444  
445 -(((
446 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
447 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
448 448  
449 -(((
450 -(% 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:**
451 -)))
434 +Payload:    01 00 00 1E    TDC=30S
452 452  
436 +Payload:    01 00 00 3C    TDC=60S
453 453  
454 -[[image:1654592790040-760.png]]
455 455  
439 +* (% style="color:blue" %)**Reset**
456 456  
457 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
458 458  
459 459  
460 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
461 461  
462 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
463 463  
464 -[[image:1654851029373-510.png]]
465 465  
466 466  
467 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 +== 2.5  ​Show Data in DataCake IoT Server ==
468 468  
469 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
470 -
471 -
472 -
473 -== 2.6  Frequency Plans ==
474 -
475 475  (((
476 -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.
453 +[[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:
477 477  )))
478 478  
479 -
480 -
481 -=== 2.6.1  EU863-870 (EU868) ===
482 -
483 483  (((
484 -(% style="color:blue" %)**Uplink:**
485 -)))
486 -
487 -(((
488 -868.1 - SF7BW125 to SF12BW125
489 -)))
490 -
491 -(((
492 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
493 -)))
494 -
495 -(((
496 -868.5 - SF7BW125 to SF12BW125
497 -)))
498 -
499 -(((
500 -867.1 - SF7BW125 to SF12BW125
501 -)))
502 -
503 -(((
504 -867.3 - SF7BW125 to SF12BW125
505 -)))
506 -
507 -(((
508 -867.5 - SF7BW125 to SF12BW125
509 -)))
510 -
511 -(((
512 -867.7 - SF7BW125 to SF12BW125
513 -)))
514 -
515 -(((
516 -867.9 - SF7BW125 to SF12BW125
517 -)))
518 -
519 -(((
520 -868.8 - FSK
521 -)))
522 -
523 -(((
524 524  
525 525  )))
526 526  
527 527  (((
528 -(% style="color:blue" %)**Downlink:**
461 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
529 529  )))
530 530  
531 531  (((
532 -Uplink channels 1-9 (RX1)
465 +(% 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:**
533 533  )))
534 534  
535 -(((
536 -869.525 - SF9BW125 (RX2 downlink only)
537 -)))
538 538  
469 +[[image:1654592790040-760.png]]
539 539  
540 540  
541 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
542 542  
543 -(((
544 -Used in USA, Canada and South America. Default use CHE=2
545 545  
546 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
547 547  
548 -903.9 - SF7BW125 to SF10BW125
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
549 549  
550 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
551 551  
552 -904.3 - SF7BW125 to SF10BW125
553 553  
554 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
555 555  
556 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
557 557  
558 -904.9 - SF7BW125 to SF10BW125
559 559  
560 -905.1 - SF7BW125 to SF10BW125
561 561  
562 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
563 563  
490 +The LDDS20 has an internal LED which is to show the status of different state.
564 564  
565 -(% style="color:blue" %)**Downlink:**
566 566  
567 -923.3 - SF7BW500 to SF12BW500
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
568 568  
569 -923.9 - SF7BW500 to SF12BW500
570 570  
571 -924.5 - SF7BW500 to SF12BW500
572 572  
573 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
574 574  
575 -925.7 - SF7BW500 to SF12BW500
576 576  
577 -926.3 - SF7BW500 to SF12BW500
578 -
579 -926.9 - SF7BW500 to SF12BW500
580 -
581 -927.5 - SF7BW500 to SF12BW500
582 -
583 -923.3 - SF12BW500(RX2 downlink only)
584 -
585 -
586 -
587 -)))
588 -
589 -=== 2.6.3  CN470-510 (CN470) ===
590 -
591 591  (((
592 -Used in China, Default use CHE=1
504 +**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/]]
593 593  )))
594 594  
595 595  (((
596 -(% style="color:blue" %)**Uplink:**
597 -)))
598 -
599 -(((
600 -486.3 - SF7BW125 to SF12BW125
601 -)))
602 -
603 -(((
604 -486.5 - SF7BW125 to SF12BW125
605 -)))
606 -
607 -(((
608 -486.7 - SF7BW125 to SF12BW125
609 -)))
610 -
611 -(((
612 -486.9 - SF7BW125 to SF12BW125
613 -)))
614 -
615 -(((
616 -487.1 - SF7BW125 to SF12BW125
617 -)))
618 -
619 -(((
620 -487.3 - SF7BW125 to SF12BW125
621 -)))
622 -
623 -(((
624 -487.5 - SF7BW125 to SF12BW125
625 -)))
626 -
627 -(((
628 -487.7 - SF7BW125 to SF12BW125
629 -)))
630 -
631 -(((
632 632  
633 633  )))
634 634  
635 635  (((
636 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
637 637  )))
638 638  
639 -(((
640 -506.7 - SF7BW125 to SF12BW125
641 -)))
642 642  
643 -(((
644 -506.9 - SF7BW125 to SF12BW125
645 -)))
646 646  
647 -(((
648 -507.1 - SF7BW125 to SF12BW125
649 -)))
517 +== 2.8  Battery Analysis ==
650 650  
651 -(((
652 -507.3 - SF7BW125 to SF12BW125
653 -)))
654 654  
655 -(((
656 -507.5 - SF7BW125 to SF12BW125
657 -)))
658 658  
659 -(((
660 -507.7 - SF7BW125 to SF12BW125
661 -)))
662 662  
663 -(((
664 -507.9 - SF7BW125 to SF12BW125
665 -)))
522 +=== 2.8.1  Battery Type ===
666 666  
667 -(((
668 -508.1 - SF7BW125 to SF12BW125
669 -)))
524 +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.
670 670  
671 -(((
672 -505.3 - SF12BW125 (RX2 downlink only)
673 -)))
674 674  
527 +The battery related documents as below:
675 675  
676 -
677 -=== 2.6.4  AU915-928(AU915) ===
678 -
679 -(((
680 -Default use CHE=2
681 -
682 -(% style="color:blue" %)**Uplink:**
683 -
684 -916.8 - SF7BW125 to SF12BW125
685 -
686 -917.0 - SF7BW125 to SF12BW125
687 -
688 -917.2 - SF7BW125 to SF12BW125
689 -
690 -917.4 - SF7BW125 to SF12BW125
691 -
692 -917.6 - SF7BW125 to SF12BW125
693 -
694 -917.8 - SF7BW125 to SF12BW125
695 -
696 -918.0 - SF7BW125 to SF12BW125
697 -
698 -918.2 - SF7BW125 to SF12BW125
699 -
700 -
701 -(% style="color:blue" %)**Downlink:**
702 -
703 -923.3 - SF7BW500 to SF12BW500
704 -
705 -923.9 - SF7BW500 to SF12BW500
706 -
707 -924.5 - SF7BW500 to SF12BW500
708 -
709 -925.1 - SF7BW500 to SF12BW500
710 -
711 -925.7 - SF7BW500 to SF12BW500
712 -
713 -926.3 - SF7BW500 to SF12BW500
714 -
715 -926.9 - SF7BW500 to SF12BW500
716 -
717 -927.5 - SF7BW500 to SF12BW500
718 -
719 -923.3 - SF12BW500(RX2 downlink only)
720 -
721 -
722 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
723 723  )))
724 -
725 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
726 -
727 -(((
728 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
729 729  )))
730 -
731 -(((
732 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
733 733  )))
734 734  
735 -(((
736 -923.4 - SF7BW125 to SF10BW125
737 -)))
539 + [[image:image-20220615102527-16.png]]
738 738  
739 -(((
740 -
741 -)))
742 742  
743 -(((
744 -(% style="color:blue" %)**Additional Uplink Channel**:
745 -)))
746 746  
747 -(((
748 -(OTAA mode, channel added by JoinAccept message)
749 -)))
543 +== 2.8.2  Battery Note ==
750 750  
751 -(((
752 -
753 -)))
545 +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.
754 754  
755 -(((
756 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
757 -)))
758 758  
759 -(((
760 -922.2 - SF7BW125 to SF10BW125
761 -)))
762 762  
763 -(((
764 -922.4 - SF7BW125 to SF10BW125
765 -)))
549 +=== 2.8.3  Replace the battery ===
766 766  
767 767  (((
768 -922.6 - SF7BW125 to SF10BW125
552 +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.
769 769  )))
770 770  
771 771  (((
772 -922.8 - SF7BW125 to SF10BW125
773 -)))
774 -
775 -(((
776 -923.0 - SF7BW125 to SF10BW125
777 -)))
778 -
779 -(((
780 -922.0 - SF7BW125 to SF10BW125
781 -)))
782 -
783 -(((
784 784  
785 785  )))
786 786  
787 787  (((
788 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
560 +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)
789 789  )))
790 790  
791 -(((
792 -923.6 - SF7BW125 to SF10BW125
793 -)))
794 794  
795 -(((
796 -923.8 - SF7BW125 to SF10BW125
797 -)))
798 798  
799 -(((
800 -924.0 - SF7BW125 to SF10BW125
801 -)))
565 +== 2.8.4  Battery Life Analyze ==
802 802  
803 -(((
804 -924.2 - SF7BW125 to SF10BW125
805 -)))
567 +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:
806 806  
807 -(((
808 -924.4 - SF7BW125 to SF10BW125
809 -)))
569 +[[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]]
810 810  
811 -(((
812 -924.6 - SF7BW125 to SF10BW125
813 -)))
814 814  
815 -(((
816 -
817 -)))
818 818  
819 -(((
820 -(% style="color:blue" %)**Downlink:**
821 -)))
573 += 3.  Using the AT Commands =
822 822  
823 823  (((
824 -Uplink channels 1-8 (RX1)
825 -)))
826 -
827 827  (((
828 -923.2 - SF10BW125 (RX2)
829 -)))
830 -
831 -
832 -
833 -=== 2.6.6  KR920-923 (KR920) ===
834 -
835 -(((
836 -(% style="color:blue" %)**Default channel:**
837 -)))
838 -
839 -(((
840 -922.1 - SF7BW125 to SF12BW125
841 -)))
842 -
843 -(((
844 -922.3 - SF7BW125 to SF12BW125
845 -)))
846 -
847 -(((
848 -922.5 - SF7BW125 to SF12BW125
849 -)))
850 -
851 -(((
852 852  
853 853  )))
854 -
855 -(((
856 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
857 857  )))
858 858  
859 -(((
860 -922.1 - SF7BW125 to SF12BW125
861 -)))
581 +== 3.1  Access AT Commands ==
862 862  
863 -(((
864 -922.3 - SF7BW125 to SF12BW125
865 -)))
583 +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.
866 866  
867 -(((
868 -922.5 - SF7BW125 to SF12BW125
869 -)))
870 870  
871 -(((
872 -922.7 - SF7BW125 to SF12BW125
873 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
874 874  
875 -(((
876 -922.9 - SF7BW125 to SF12BW125
877 -)))
878 878  
879 -(((
880 -923.1 - SF7BW125 to SF12BW125
881 -)))
589 +Or if you have below board, use below connection:
882 882  
883 -(((
884 -923.3 - SF7BW125 to SF12BW125
885 -)))
886 886  
887 -(((
888 -
889 -)))
592 +[[image:image-20220610172924-5.png]]
890 890  
891 -(((
892 -(% style="color:blue" %)**Downlink:**
893 -)))
894 894  
895 895  (((
896 -Uplink channels 1-7(RX1)
596 +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:
897 897  )))
898 898  
899 -(((
900 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
901 -)))
902 902  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
903 903  
602 +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/]].
904 904  
905 -=== 2.6.7  IN865-867 (IN865) ===
906 906  
907 -(((
908 -(% style="color:blue" %)**Uplink:**
909 -)))
605 +AT+<CMD>?  :  Help on <CMD>
910 910  
911 -(((
912 -865.0625 - SF7BW125 to SF12BW125
913 -)))
607 +AT+<CMD>  :  Run <CMD>
914 914  
915 -(((
916 -865.4025 - SF7BW125 to SF12BW125
917 -)))
609 +AT+<CMD>=<value>  :  Set the value
918 918  
919 -(((
920 -865.9850 - SF7BW125 to SF12BW125
921 -)))
611 +AT+<CMD>=?  :  Get the value
922 922  
923 -(((
924 -
925 -)))
926 926  
927 -(((
928 -(% style="color:blue" %)**Downlink:**
929 -)))
614 +**General Commands**      
930 930  
931 -(((
932 -Uplink channels 1-3 (RX1)
933 -)))
616 +AT                    : Attention       
934 934  
935 -(((
936 -866.550 - SF10BW125 (RX2)
937 -)))
618 +AT?                            : Short Help     
938 938  
620 +ATZ                            : MCU Reset    
939 939  
622 +AT+TDC           : Application Data Transmission Interval 
940 940  
941 -== 2.7  LED Indicator ==
942 942  
943 -The LDDS75 has an internal LED which is to show the status of different state.
625 +**Keys, IDs and EUIs management**
944 944  
627 +AT+APPEUI              : Application EUI      
945 945  
946 -* Blink once when device power on.
947 -* The device detects the sensor and flashes 5 times.
948 -* Solid ON for 5 seconds once device successful Join the network.
949 -* Blink once when device transmit a packet.
629 +AT+APPKEY              : Application Key     
950 950  
951 -== 2.8  ​Firmware Change Log ==
631 +AT+APPSKEY            : Application Session Key
952 952  
633 +AT+DADDR              : Device Address     
953 953  
954 -(((
955 -**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/]]
956 -)))
635 +AT+DEUI                   : Device EUI     
957 957  
958 -(((
959 -
960 -)))
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
961 961  
962 -(((
963 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
964 -)))
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
965 965  
641 +AT+CFM          : Confirm Mode       
966 966  
643 +AT+CFS                     : Confirm Status       
967 967  
968 -== 2.9  Mechanical ==
645 +AT+JOIN          : Join LoRa? Network       
969 969  
647 +AT+NJM          : LoRa? Network Join Mode    
970 970  
971 -[[image:image-20220610172003-1.png]]
649 +AT+NJS                     : LoRa? Network Join Status    
972 972  
651 +AT+RECV                  : Print Last Received Data in Raw Format
973 973  
974 -[[image:image-20220610172003-2.png]]
653 +AT+RECVB                : Print Last Received Data in Binary Format      
975 975  
655 +AT+SEND                  : Send Text Data      
976 976  
657 +AT+SENB                  : Send Hexadecimal Data
977 977  
978 -== 2.10  Battery Analysis ==
979 979  
980 -=== 2.10.1  Battery Type ===
660 +**LoRa Network Management**
981 981  
982 -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.
662 +AT+ADR          : Adaptive Rate
983 983  
664 +AT+CLASS                : LoRa Class(Currently only support class A
984 984  
985 -The battery related documents as below:
666 +AT+DCS           : Duty Cycle Setting 
986 986  
987 -* (((
988 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
989 -)))
990 -* (((
991 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
992 -)))
993 -* (((
994 -[[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]]
995 -)))
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
996 996  
997 - [[image:image-20220610172400-3.png]]
670 +AT+FCD           : Frame Counter Downlink       
998 998  
672 +AT+FCU           : Frame Counter Uplink   
999 999  
674 +AT+JN1DL                : Join Accept Delay1
1000 1000  
1001 -=== 2.10.2  Replace the battery ===
676 +AT+JN2DL                : Join Accept Delay2
1002 1002  
1003 -(((
1004 -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.
1005 -)))
678 +AT+PNM                   : Public Network Mode   
1006 1006  
1007 -(((
1008 -
1009 -)))
680 +AT+RX1DL                : Receive Delay1      
1010 1010  
1011 -(((
1012 -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)
1013 -)))
682 +AT+RX2DL                : Receive Delay2      
1014 1014  
684 +AT+RX2DR               : Rx2 Window Data Rate 
1015 1015  
686 +AT+RX2FQ               : Rx2 Window Frequency
1016 1016  
1017 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
688 +AT+TXP           : Transmit Power
1018 1018  
1019 -(((
1020 -(((
1021 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1022 -)))
1023 -)))
1024 1024  
1025 -* (((
1026 -(((
1027 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1028 -)))
1029 -)))
1030 -* (((
1031 -(((
1032 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1033 -)))
1034 -)))
691 +**Information** 
1035 1035  
1036 -(((
1037 -(((
1038 -
1039 -)))
693 +AT+RSSI           : RSSI of the Last Received Packet   
1040 1040  
1041 -(((
1042 -There are two kinds of commands to configure LDDS75, they are:
1043 -)))
1044 -)))
695 +AT+SNR           : SNR of the Last Received Packet   
1045 1045  
1046 -* (((
1047 -(((
1048 -(% style="color:#4f81bd" %)** General Commands**.
1049 -)))
1050 -)))
697 +AT+VER           : Image Version and Frequency Band       
1051 1051  
1052 -(((
1053 -(((
1054 -These commands are to configure:
1055 -)))
1056 -)))
699 +AT+FDR           : Factory Data Reset
1057 1057  
1058 -* (((
1059 -(((
1060 -General system settings like: uplink interval.
1061 -)))
1062 -)))
1063 -* (((
1064 -(((
1065 -LoRaWAN protocol & radio related command.
1066 -)))
1067 -)))
701 +AT+PORT                  : Application Port    
1068 1068  
1069 -(((
1070 -(((
1071 -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]]
1072 -)))
1073 -)))
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
1074 1074  
1075 -(((
1076 -(((
1077 -
1078 -)))
1079 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1080 1080  
1081 -* (((
1082 -(((
1083 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1084 -)))
1085 -)))
1086 1086  
1087 -(((
1088 -(((
1089 -These commands only valid for LDDS75, as below:
1090 -)))
1091 -)))
1092 1092  
1093 -
1094 -
1095 -== 3.1  Access AT Commands ==
1096 -
1097 -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.
1098 -
1099 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1100 -
1101 -
1102 -Or if you have below board, use below connection:
1103 -
1104 -
1105 -[[image:image-20220610172924-5.png]]
1106 -
1107 -
1108 -(((
1109 -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:
1110 -)))
1111 -
1112 -
1113 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1114 -
1115 -
1116 -
1117 1117  == 3.2  Set Transmit Interval Time ==
1118 1118  
1119 1119  Feature: Change LoRaWAN End Node Transmit Interval.
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