Skip to Content
Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.19
edited by Xiaoling
on 2022/06/15 11:08
Change comment: There is no comment for this version
To version 172.1
edited by Xiaoling
on 2022/06/15 09:51
Change comment: Uploaded new attachment "image-20220615095102-14.png", version {1}

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]]
... ... @@ -204,6 +204,9 @@
204 204  * Smart liquid control solution.
205 205  * Smart liquefied gas solution.
206 206  
205 +
206 +
207 +
207 207  == 1.7  Precautions ==
208 208  
209 209  * 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.
... ... @@ -210,6 +210,9 @@
210 210  * 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.
211 211  * 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.
212 212  
214 +
215 +
216 +
213 213  == 1.8  Pin mapping and power on ==
214 214  
215 215  
... ... @@ -223,7 +223,7 @@
223 223  == 2.1  How it works ==
224 224  
225 225  (((
226 -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.
227 227  )))
228 228  
229 229  (((
... ... @@ -296,17 +296,16 @@
296 296  
297 297  
298 298  
299 -(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
303 +(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
300 300  
301 301  
302 302  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
303 303  
304 -[[image:image-20220615095102-14.png]]
308 +[[image:image-20220610161724-10.png]]
305 305  
306 306  
307 -
308 308  (((
309 -(% 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 +(% 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.
310 310  )))
311 311  
312 312  [[image:1654849068701-275.png]]
... ... @@ -317,10 +317,12 @@
317 317  
318 318  (((
319 319  (((
320 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
323 +LDDS75 will uplink payload via LoRaWAN with below payload format: 
324 +)))
321 321  
322 -Uplink payload includes in total 8 bytes.
323 -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).
326 +(((
327 +Uplink payload includes in total 4 bytes.
328 +Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
324 324  )))
325 325  )))
326 326  
... ... @@ -347,7 +347,7 @@
347 347  === 2.3.1  Battery Info ===
348 348  
349 349  
350 -Check the battery voltage for LDDS20.
355 +Check the battery voltage for LDDS75.
351 351  
352 352  Ex1: 0x0B45 = 2885mV
353 353  
... ... @@ -358,19 +358,20 @@
358 358  === 2.3.2  Distance ===
359 359  
360 360  (((
361 -Get the distance. Flat object range 20mm - 2000mm.
366 +Get the distance. Flat object range 280mm - 7500mm.
362 362  )))
363 363  
364 364  (((
365 -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 +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.**
366 366  )))
367 367  
368 -* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
369 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
370 370  
374 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
375 +* 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.
376 +
371 371  === 2.3.3  Interrupt Pin ===
372 372  
373 -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 +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.
374 374  
375 375  **Example:**
376 376  
... ... @@ -411,305 +411,736 @@
411 411  While using TTN network, you can add the payload format to decode the payload.
412 412  
413 413  
414 -[[image:1655261164557-670.png]]
420 +[[image:1654850829385-439.png]]
415 415  
416 416  The payload decoder function for TTN V3 is here:
417 417  
418 418  (((
419 -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 +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/]]
420 420  )))
421 421  
422 422  
423 423  
424 -== 2.4  Downlink Payload ==
430 +== 2.4  Uplink Interval ==
425 425  
426 -By default, LDDS20 prints the downlink payload to console port.
432 +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"]]
427 427  
428 -[[image:image-20220615100930-15.png]]
429 429  
430 430  
431 -**Examples:**
436 +== 2.5  ​Show Data in DataCake IoT Server ==
432 432  
438 +(((
439 +[[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:
440 +)))
433 433  
434 -* (% style="color:blue" %)**Set TDC**
442 +(((
443 +
444 +)))
435 435  
436 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
446 +(((
447 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
448 +)))
437 437  
438 -Payload:    01 00 00 1E    TDC=30S
450 +(((
451 +(% 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:**
452 +)))
439 439  
440 -Payload:    01 00 00 3C    TDC=60S
441 441  
455 +[[image:1654592790040-760.png]]
442 442  
443 -* (% style="color:blue" %)**Reset**
444 444  
445 -If payload = 0x04FF, it will reset the LDDS20
458 +[[image:1654592800389-571.png]]
446 446  
447 447  
448 -* (% style="color:blue" %)**CFM**
461 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
449 449  
450 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
463 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
451 451  
465 +[[image:1654851029373-510.png]]
452 452  
453 453  
454 -== 2.5  ​Show Data in DataCake IoT Server ==
468 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
455 455  
470 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
471 +
472 +
473 +
474 +== 2.6  Frequency Plans ==
475 +
456 456  (((
457 -[[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 +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.
458 458  )))
459 459  
480 +
481 +
482 +=== 2.6.1  EU863-870 (EU868) ===
483 +
460 460  (((
485 +(% style="color:blue" %)**Uplink:**
486 +)))
487 +
488 +(((
489 +868.1 - SF7BW125 to SF12BW125
490 +)))
491 +
492 +(((
493 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
494 +)))
495 +
496 +(((
497 +868.5 - SF7BW125 to SF12BW125
498 +)))
499 +
500 +(((
501 +867.1 - SF7BW125 to SF12BW125
502 +)))
503 +
504 +(((
505 +867.3 - SF7BW125 to SF12BW125
506 +)))
507 +
508 +(((
509 +867.5 - SF7BW125 to SF12BW125
510 +)))
511 +
512 +(((
513 +867.7 - SF7BW125 to SF12BW125
514 +)))
515 +
516 +(((
517 +867.9 - SF7BW125 to SF12BW125
518 +)))
519 +
520 +(((
521 +868.8 - FSK
522 +)))
523 +
524 +(((
461 461  
462 462  )))
463 463  
464 464  (((
465 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
529 +(% style="color:blue" %)**Downlink:**
466 466  )))
467 467  
468 468  (((
469 -(% 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 +Uplink channels 1-9 (RX1)
470 470  )))
471 471  
536 +(((
537 +869.525 - SF9BW125 (RX2 downlink only)
538 +)))
472 472  
473 -[[image:1654592790040-760.png]]
474 474  
475 475  
476 -[[image:1654592800389-571.png]]
542 +=== 2.6.2  US902-928(US915) ===
477 477  
544 +(((
545 +Used in USA, Canada and South America. Default use CHE=2
478 478  
479 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
547 +(% style="color:blue" %)**Uplink:**
480 480  
481 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
549 +903.9 - SF7BW125 to SF10BW125
482 482  
483 -[[image:1654851029373-510.png]]
551 +904.1 - SF7BW125 to SF10BW125
484 484  
553 +904.3 - SF7BW125 to SF10BW125
485 485  
486 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
555 +904.5 - SF7BW125 to SF10BW125
487 487  
488 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
557 +904.7 - SF7BW125 to SF10BW125
489 489  
559 +904.9 - SF7BW125 to SF10BW125
490 490  
561 +905.1 - SF7BW125 to SF10BW125
491 491  
492 -== 2.6  LED Indicator ==
563 +905.3 - SF7BW125 to SF10BW125
493 493  
494 -The LDDS20 has an internal LED which is to show the status of different state.
495 495  
566 +(% style="color:blue" %)**Downlink:**
496 496  
497 -* Blink once when device power on.
498 -* The device detects the sensor and flashes 5 times.
499 -* Solid ON for 5 seconds once device successful Join the network.
500 -* Blink once when device transmit a packet.
568 +923.3 - SF7BW500 to SF12BW500
501 501  
502 -== 2.7  ​Firmware Change Log ==
570 +923.9 - SF7BW500 to SF12BW500
503 503  
572 +924.5 - SF7BW500 to SF12BW500
504 504  
574 +925.1 - SF7BW500 to SF12BW500
575 +
576 +925.7 - SF7BW500 to SF12BW500
577 +
578 +926.3 - SF7BW500 to SF12BW500
579 +
580 +926.9 - SF7BW500 to SF12BW500
581 +
582 +927.5 - SF7BW500 to SF12BW500
583 +
584 +923.3 - SF12BW500(RX2 downlink only)
585 +
586 +
587 +
588 +)))
589 +
590 +=== 2.6.3  CN470-510 (CN470) ===
591 +
505 505  (((
506 -**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 +Used in China, Default use CHE=1
507 507  )))
508 508  
509 509  (((
597 +(% style="color:blue" %)**Uplink:**
598 +)))
599 +
600 +(((
601 +486.3 - SF7BW125 to SF12BW125
602 +)))
603 +
604 +(((
605 +486.5 - SF7BW125 to SF12BW125
606 +)))
607 +
608 +(((
609 +486.7 - SF7BW125 to SF12BW125
610 +)))
611 +
612 +(((
613 +486.9 - SF7BW125 to SF12BW125
614 +)))
615 +
616 +(((
617 +487.1 - SF7BW125 to SF12BW125
618 +)))
619 +
620 +(((
621 +487.3 - SF7BW125 to SF12BW125
622 +)))
623 +
624 +(((
625 +487.5 - SF7BW125 to SF12BW125
626 +)))
627 +
628 +(((
629 +487.7 - SF7BW125 to SF12BW125
630 +)))
631 +
632 +(((
510 510  
511 511  )))
512 512  
513 513  (((
514 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
637 +(% style="color:blue" %)**Downlink:**
515 515  )))
516 516  
640 +(((
641 +506.7 - SF7BW125 to SF12BW125
642 +)))
517 517  
644 +(((
645 +506.9 - SF7BW125 to SF12BW125
646 +)))
518 518  
519 -== 2.8  Battery Analysis ==
648 +(((
649 +507.1 - SF7BW125 to SF12BW125
650 +)))
520 520  
652 +(((
653 +507.3 - SF7BW125 to SF12BW125
654 +)))
521 521  
656 +(((
657 +507.5 - SF7BW125 to SF12BW125
658 +)))
522 522  
660 +(((
661 +507.7 - SF7BW125 to SF12BW125
662 +)))
523 523  
524 -=== 2.8.1  Battery Type ===
664 +(((
665 +507.9 - SF7BW125 to SF12BW125
666 +)))
525 525  
526 -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.
668 +(((
669 +508.1 - SF7BW125 to SF12BW125
670 +)))
527 527  
672 +(((
673 +505.3 - SF12BW125 (RX2 downlink only)
674 +)))
528 528  
529 -The battery related documents as below:
530 530  
531 -* (((
532 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
677 +
678 +=== 2.6.4  AU915-928(AU915) ===
679 +
680 +(((
681 +Default use CHE=2
682 +
683 +(% style="color:blue" %)**Uplink:**
684 +
685 +916.8 - SF7BW125 to SF12BW125
686 +
687 +917.0 - SF7BW125 to SF12BW125
688 +
689 +917.2 - SF7BW125 to SF12BW125
690 +
691 +917.4 - SF7BW125 to SF12BW125
692 +
693 +917.6 - SF7BW125 to SF12BW125
694 +
695 +917.8 - SF7BW125 to SF12BW125
696 +
697 +918.0 - SF7BW125 to SF12BW125
698 +
699 +918.2 - SF7BW125 to SF12BW125
700 +
701 +
702 +(% style="color:blue" %)**Downlink:**
703 +
704 +923.3 - SF7BW500 to SF12BW500
705 +
706 +923.9 - SF7BW500 to SF12BW500
707 +
708 +924.5 - SF7BW500 to SF12BW500
709 +
710 +925.1 - SF7BW500 to SF12BW500
711 +
712 +925.7 - SF7BW500 to SF12BW500
713 +
714 +926.3 - SF7BW500 to SF12BW500
715 +
716 +926.9 - SF7BW500 to SF12BW500
717 +
718 +927.5 - SF7BW500 to SF12BW500
719 +
720 +923.3 - SF12BW500(RX2 downlink only)
721 +
722 +
723 +
533 533  )))
534 -* (((
535 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
725 +
726 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
727 +
728 +(((
729 +(% style="color:blue" %)**Default Uplink channel:**
536 536  )))
537 -* (((
538 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
731 +
732 +(((
733 +923.2 - SF7BW125 to SF10BW125
539 539  )))
540 540  
541 - [[image:image-20220615102527-16.png]]
736 +(((
737 +923.4 - SF7BW125 to SF10BW125
738 +)))
542 542  
740 +(((
741 +
742 +)))
543 543  
744 +(((
745 +(% style="color:blue" %)**Additional Uplink Channel**:
746 +)))
544 544  
545 -== 2.8.2  Battery Note ==
748 +(((
749 +(OTAA mode, channel added by JoinAccept message)
750 +)))
546 546  
547 -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.
752 +(((
753 +
754 +)))
548 548  
756 +(((
757 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
758 +)))
549 549  
760 +(((
761 +922.2 - SF7BW125 to SF10BW125
762 +)))
550 550  
551 -=== 2.8.3  Replace the battery ===
764 +(((
765 +922.4 - SF7BW125 to SF10BW125
766 +)))
552 552  
553 553  (((
554 -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 +922.6 - SF7BW125 to SF10BW125
555 555  )))
556 556  
557 557  (((
773 +922.8 - SF7BW125 to SF10BW125
774 +)))
775 +
776 +(((
777 +923.0 - SF7BW125 to SF10BW125
778 +)))
779 +
780 +(((
781 +922.0 - SF7BW125 to SF10BW125
782 +)))
783 +
784 +(((
558 558  
559 559  )))
560 560  
561 561  (((
562 -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 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
563 563  )))
564 564  
792 +(((
793 +923.6 - SF7BW125 to SF10BW125
794 +)))
565 565  
796 +(((
797 +923.8 - SF7BW125 to SF10BW125
798 +)))
566 566  
567 -== 2.8.4  Battery Life Analyze ==
800 +(((
801 +924.0 - SF7BW125 to SF10BW125
802 +)))
568 568  
569 -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:
804 +(((
805 +924.2 - SF7BW125 to SF10BW125
806 +)))
570 570  
571 -[[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]]
808 +(((
809 +924.4 - SF7BW125 to SF10BW125
810 +)))
572 572  
812 +(((
813 +924.6 - SF7BW125 to SF10BW125
814 +)))
573 573  
816 +(((
817 +
818 +)))
574 574  
575 -= 3.  Using the AT Commands =
820 +(((
821 +(% style="color:blue" %)**Downlink:**
822 +)))
576 576  
577 577  (((
825 +Uplink channels 1-8 (RX1)
826 +)))
827 +
578 578  (((
829 +923.2 - SF10BW125 (RX2)
830 +)))
831 +
832 +
833 +
834 +=== 2.6.6  KR920-923 (KR920) ===
835 +
836 +(((
837 +(% style="color:blue" %)**Default channel:**
838 +)))
839 +
840 +(((
841 +922.1 - SF7BW125 to SF12BW125
842 +)))
843 +
844 +(((
845 +922.3 - SF7BW125 to SF12BW125
846 +)))
847 +
848 +(((
849 +922.5 - SF7BW125 to SF12BW125
850 +)))
851 +
852 +(((
579 579  
580 580  )))
855 +
856 +(((
857 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
581 581  )))
582 582  
583 -== 3.1  Access AT Commands ==
860 +(((
861 +922.1 - SF7BW125 to SF12BW125
862 +)))
584 584  
585 -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.
864 +(((
865 +922.3 - SF7BW125 to SF12BW125
866 +)))
586 586  
868 +(((
869 +922.5 - SF7BW125 to SF12BW125
870 +)))
587 587  
588 -[[image:image-20220610172924-4.png||height="483" width="988"]]
872 +(((
873 +922.7 - SF7BW125 to SF12BW125
874 +)))
589 589  
876 +(((
877 +922.9 - SF7BW125 to SF12BW125
878 +)))
590 590  
591 -Or if you have below board, use below connection:
880 +(((
881 +923.1 - SF7BW125 to SF12BW125
882 +)))
592 592  
884 +(((
885 +923.3 - SF7BW125 to SF12BW125
886 +)))
593 593  
594 -[[image:image-20220610172924-5.png]]
888 +(((
889 +
890 +)))
595 595  
892 +(((
893 +(% style="color:blue" %)**Downlink:**
894 +)))
596 596  
597 597  (((
598 -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 +Uplink channels 1-7(RX1)
599 599  )))
600 600  
900 +(((
901 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
902 +)))
601 601  
602 - [[image:image-20220610172924-6.png||height="601" width="860"]]
603 603  
604 -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/]].
605 605  
906 +=== 2.6.7  IN865-867 (IN865) ===
606 606  
607 -AT+<CMD>?  :  Help on <CMD>
908 +(((
909 +(% style="color:blue" %)**Uplink:**
910 +)))
608 608  
609 -AT+<CMD>  :  Run <CMD>
912 +(((
913 +865.0625 - SF7BW125 to SF12BW125
914 +)))
610 610  
611 -AT+<CMD>=<value>  :  Set the value
916 +(((
917 +865.4025 - SF7BW125 to SF12BW125
918 +)))
612 612  
613 -AT+<CMD>=?  :  Get the value
920 +(((
921 +865.9850 - SF7BW125 to SF12BW125
922 +)))
614 614  
924 +(((
925 +
926 +)))
615 615  
616 -(% style="color:#037691" %)** General Commands :**     
928 +(((
929 +(% style="color:blue" %)**Downlink:**
930 +)))
617 617  
618 -AT  :  Attention       
932 +(((
933 +Uplink channels 1-3 (RX1)
934 +)))
619 619  
620 -AT?  :  Short Help     
936 +(((
937 +866.550 - SF10BW125 (RX2)
938 +)))
621 621  
622 -ATZ :  MCU Reset    
623 623  
624 -AT+TDC :  Application Data Transmission Interval 
625 625  
942 +== 2.7  LED Indicator ==
626 626  
627 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
944 +The LDDS75 has an internal LED which is to show the status of different state.
628 628  
629 -AT+APPEUI  :  Application EUI      
630 630  
631 -AT+APPKEY  :  Application Key     
947 +* Blink once when device power on.
948 +* The device detects the sensor and flashes 5 times.
949 +* Solid ON for 5 seconds once device successful Join the network.
950 +* Blink once when device transmit a packet.
632 632  
633 -AT+APPSKEY  :  Application Session Key
952 +== 2.8  ​Firmware Change Log ==
634 634  
635 -AT+DADDR :  Device Address     
636 636  
637 -AT+DEUI :  Device EUI     
955 +(((
956 +**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/]]
957 +)))
638 638  
639 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
959 +(((
960 +
961 +)))
640 640  
641 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
963 +(((
964 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
965 +)))
642 642  
643 -AT+CFM :  Confirm Mode       
644 644  
645 -AT+CFS :  Confirm Status       
646 646  
647 -AT+JOIN  :  Join LoRa? Network       
969 +== 2.9  Mechanical ==
648 648  
649 -AT+NJM  :  LoRa? Network Join Mode    
650 650  
651 -AT+NJS  :  LoRa? Network Join Status    
972 +[[image:image-20220610172003-1.png]]
652 652  
653 -AT+RECV  :  Print Last Received Data in Raw Format
654 654  
655 -AT+RECVB :  Print Last Received Data in Binary Format      
975 +[[image:image-20220610172003-2.png]]
656 656  
657 -AT+SEND  :  Send Text Data      
658 658  
659 -AT+SENB  :  Send Hexadecimal Data
660 660  
979 +== 2.10  Battery Analysis ==
661 661  
662 -(% style="color:#037691" %)** LoRa Network Management :**
981 +=== 2.10.1  Battery Type ===
663 663  
664 -AT+ADR  :  Adaptive Rate
983 +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.
665 665  
666 -AT+CLASS  :  LoRa Class(Currently only support class A
667 667  
668 -AT+DCS  :  Duty Cycle Setting 
986 +The battery related documents as below:
669 669  
670 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
988 +* (((
989 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
990 +)))
991 +* (((
992 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
993 +)))
994 +* (((
995 +[[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]]
996 +)))
671 671  
672 -AT+FCD  :  Frame Counter Downlink       
998 + [[image:image-20220610172400-3.png]]
673 673  
674 -AT+FCU  :  Frame Counter Uplink   
675 675  
676 -AT+JN1DL  :  Join Accept Delay1
677 677  
678 -AT+JN2DL  :  Join Accept Delay2
1002 +=== 2.10.2  Replace the battery ===
679 679  
680 -AT+PNM  :  Public Network Mode   
1004 +(((
1005 +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.
1006 +)))
681 681  
682 -AT+RX1DL  :  Receive Delay1      
1008 +(((
1009 +
1010 +)))
683 683  
684 -AT+RX2DL  :  Receive Delay2      
1012 +(((
1013 +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)
1014 +)))
685 685  
686 -AT+RX2DR  :  Rx2 Window Data Rate 
687 687  
688 -AT+RX2FQ  :  Rx2 Window Frequency
689 689  
690 -AT+TXP  :  Transmit Power
1018 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
691 691  
1020 +(((
1021 +(((
1022 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1023 +)))
1024 +)))
692 692  
693 -(% style="color:#037691" %)** Information :**
1026 +* (((
1027 +(((
1028 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1029 +)))
1030 +)))
1031 +* (((
1032 +(((
1033 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1034 +)))
1035 +)))
694 694  
695 -AT+RSSI  :  RSSI of the Last Received Packet   
1037 +(((
1038 +(((
1039 +
1040 +)))
696 696  
697 -AT+SNR  :  SNR of the Last Received Packet   
1042 +(((
1043 +There are two kinds of commands to configure LDDS75, they are:
1044 +)))
1045 +)))
698 698  
699 -AT+VER  :  Image Version and Frequency Band       
1047 +* (((
1048 +(((
1049 +(% style="color:#4f81bd" %)** General Commands**.
1050 +)))
1051 +)))
700 700  
701 -AT+FDR  :  Factory Data Reset
1053 +(((
1054 +(((
1055 +These commands are to configure:
1056 +)))
1057 +)))
702 702  
703 -AT+PORT  :  Application Port    
1059 +* (((
1060 +(((
1061 +General system settings like: uplink interval.
1062 +)))
1063 +)))
1064 +* (((
1065 +(((
1066 +LoRaWAN protocol & radio related command.
1067 +)))
1068 +)))
704 704  
705 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1070 +(((
1071 +(((
1072 +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]]
1073 +)))
1074 +)))
706 706  
707 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
1076 +(((
1077 +(((
1078 +
1079 +)))
1080 +)))
708 708  
1082 +* (((
1083 +(((
1084 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1085 +)))
1086 +)))
709 709  
1088 +(((
1089 +(((
1090 +These commands only valid for LDDS75, as below:
1091 +)))
1092 +)))
710 710  
711 -== 3.2  Set Interrupt Mode ==
712 712  
1095 +
1096 +== 3.1  Access AT Commands ==
1097 +
1098 +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.
1099 +
1100 +[[image:image-20220610172924-4.png||height="483" width="988"]]
1101 +
1102 +
1103 +Or if you have below board, use below connection:
1104 +
1105 +
1106 +[[image:image-20220610172924-5.png]]
1107 +
1108 +
1109 +(((
1110 +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:
1111 +)))
1112 +
1113 +
1114 + [[image:image-20220610172924-6.png||height="601" width="860"]]
1115 +
1116 +
1117 +
1118 +== 3.2  Set Transmit Interval Time ==
1119 +
1120 +Feature: Change LoRaWAN End Node Transmit Interval.
1121 +
1122 +(% style="color:#037691" %)**AT Command: AT+TDC**
1123 +
1124 +[[image:image-20220610173409-7.png]]
1125 +
1126 +
1127 +(((
1128 +(% style="color:#037691" %)**Downlink Command: 0x01**
1129 +)))
1130 +
1131 +(((
1132 +(((
1133 +Format: Command Code (0x01) followed by 3 bytes time value.
1134 +
1135 +(((
1136 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1137 +)))
1138 +
1139 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1140 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1141 +)))
1142 +)))
1143 +
1144 +
1145 +
1146 +
1147 +
1148 +== 3.3  Set Interrupt Mode ==
1149 +
713 713  Feature, Set Interrupt mode for GPIO_EXIT.
714 714  
715 715  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -728,23 +728,27 @@
728 728  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
729 729  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
730 730  
731 -
732 -
733 733  = 4.  FAQ =
734 734  
735 -== 4.1  What is the frequency plan for LDDS20? ==
1170 +== 4.1  What is the frequency plan for LDDS75? ==
736 736  
737 -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"]]
1172 +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"]]
738 738  
739 739  
740 740  
741 741  == 4.2  How to change the LoRa Frequency Bands/Region ==
742 742  
743 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
1178 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
744 744  When downloading the images, choose the required image file for download. ​
745 745  
746 746  
747 747  
1183 +== 4.3  Can I use LDDS75 in condensation environment? ==
1184 +
1185 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1186 +
1187 +
1188 +
748 748  = 5.  Trouble Shooting =
749 749  
750 750  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -764,7 +764,7 @@
764 764  = 6.  Order Info =
765 765  
766 766  
767 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
1208 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
768 768  
769 769  
770 770  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -778,20 +778,18 @@
778 778  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
779 779  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
780 780  
1222 +(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
1224 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1225 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1226 +
782 782  = 7. ​ Packing Info =
783 783  
784 784  
785 785  **Package Includes**:
786 786  
787 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1232 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
788 788  
789 -
790 -(% style="color:red" %)**Note:**
791 -
792 -(% 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.
793 -
794 -
795 795  **Dimension and weight**:
796 796  
797 797  * Device Size: cm
... ... @@ -799,7 +799,6 @@
799 799  * Package Size / pcs : cm
800 800  * Weight / pcs : g
801 801  
802 -
803 803  = 8.  ​Support =
804 804  
805 805  * 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.
1655261164557-670.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -59.2 KB
Content
image-20220615100930-15.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -10.5 KB
Content
image-20220615102527-16.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -182.9 KB
Content