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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 170.4
edited by Xiaoling
on 2022/06/15 09:40
Change comment: There is no comment for this version
To version 174.7
edited by Xiaoling
on 2022/06/15 10:34
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -100,7 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 104  == 1.3  Suitable Container & Liquid ==
105 105  
106 106  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -110,7 +110,6 @@
110 110  ** Pure non metal material: <10 mm
111 111  * Pure liquid without irregular deposition.
112 112  
113 -
114 114  == 1.4  Mechanical ==
115 115  
116 116  [[image:image-20220615090910-1.png]]
... ... @@ -143,6 +143,7 @@
143 143  [[image:image-20220615092044-12.png]]
144 144  
145 145  
144 +
146 146  (% style="color:blue" %)**Step3:   **(%%)Test the installation point.
147 147  
148 148  Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
... ... @@ -171,9 +171,9 @@
171 171  (% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
172 172  
173 173  
173 +
174 174  (% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175 175  
176 -
177 177  Prepare Eproxy AB glue.
178 178  
179 179  Put Eproxy AB glue in the sensor and press it hard on the container installation point.
... ... @@ -199,8 +199,6 @@
199 199  * Smart liquid control solution.
200 200  * Smart liquefied gas solution.
201 201  
202 -
203 -
204 204  == 1.7  Precautions ==
205 205  
206 206  * 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.
... ... @@ -207,8 +207,6 @@
207 207  * 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.
208 208  * 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.
209 209  
210 -
211 -
212 212  == 1.8  Pin mapping and power on ==
213 213  
214 214  
... ... @@ -222,7 +222,7 @@
222 222  == 2.1  How it works ==
223 223  
224 224  (((
225 -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.
226 226  )))
227 227  
228 228  (((
... ... @@ -238,7 +238,7 @@
238 238  )))
239 239  
240 240  (((
241 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
242 242  )))
243 243  
244 244  (((
... ... @@ -248,11 +248,11 @@
248 248  (((
249 249  
250 250  
251 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
246 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
252 252  )))
253 253  
254 254  (((
255 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
250 +Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
256 256  )))
257 257  
258 258  [[image:image-20220607170145-1.jpeg]]
... ... @@ -282,6 +282,7 @@
282 282  [[image:image-20220610161353-7.png]]
283 283  
284 284  
280 +
285 285  You can also choose to create the device manually.
286 286  
287 287   [[image:image-20220610161538-8.png]]
... ... @@ -294,16 +294,17 @@
294 294  
295 295  
296 296  
297 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
298 298  
299 299  
300 300  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
301 301  
302 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
303 303  
304 304  
301 +
305 305  (((
306 -(% 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.
307 307  )))
308 308  
309 309  [[image:1654849068701-275.png]]
... ... @@ -314,12 +314,10 @@
314 314  
315 315  (((
316 316  (((
317 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
318 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
319 319  
320 -(((
321 -Uplink payload includes in total 4 bytes.
322 -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).
323 323  )))
324 324  )))
325 325  
... ... @@ -346,7 +346,7 @@
346 346  === 2.3.1  Battery Info ===
347 347  
348 348  
349 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
350 350  
351 351  Ex1: 0x0B45 = 2885mV
352 352  
... ... @@ -357,20 +357,21 @@
357 357  === 2.3.2  Distance ===
358 358  
359 359  (((
360 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
361 361  )))
362 362  
363 363  (((
364 -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.**
365 365  )))
366 366  
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.
367 367  
368 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
369 -* 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.
370 370  
366 +
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="H3.3A0SetInterruptMode"]] 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.
374 374  
375 375  **Example:**
376 376  
... ... @@ -416,599 +416,164 @@
416 416  The payload decoder function for TTN V3 is here:
417 417  
418 418  (((
419 -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/]]
420 420  )))
421 421  
422 422  
423 423  
424 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
425 425  
426 -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.
427 427  
424 +[[image:image-20220615100930-15.png]]
428 428  
429 429  
430 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
431 431  
432 -(((
433 -[[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:
434 -)))
435 435  
436 -(((
437 -
438 -)))
430 +* (% style="color:blue" %)**Set TDC**
439 439  
440 -(((
441 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
442 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
443 443  
444 -(((
445 -(% 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:**
446 -)))
434 +Payload:    01 00 00 1E    TDC=30S
447 447  
436 +Payload:    01 00 00 3C    TDC=60S
448 448  
449 -[[image:1654592790040-760.png]]
450 450  
439 +* (% style="color:blue" %)**Reset**
451 451  
452 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
453 453  
454 454  
455 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
456 456  
457 -(% 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
458 458  
459 -[[image:1654851029373-510.png]]
460 460  
461 461  
462 -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 ==
463 463  
464 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
465 -
466 -
467 -
468 -== 2.6  Frequency Plans ==
469 -
470 470  (((
471 -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:
472 472  )))
473 473  
474 -
475 -
476 -=== 2.6.1  EU863-870 (EU868) ===
477 -
478 478  (((
479 -(% style="color:blue" %)**Uplink:**
480 -)))
481 -
482 -(((
483 -868.1 - SF7BW125 to SF12BW125
484 -)))
485 -
486 -(((
487 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
488 -)))
489 -
490 -(((
491 -868.5 - SF7BW125 to SF12BW125
492 -)))
493 -
494 -(((
495 -867.1 - SF7BW125 to SF12BW125
496 -)))
497 -
498 -(((
499 -867.3 - SF7BW125 to SF12BW125
500 -)))
501 -
502 -(((
503 -867.5 - SF7BW125 to SF12BW125
504 -)))
505 -
506 -(((
507 -867.7 - SF7BW125 to SF12BW125
508 -)))
509 -
510 -(((
511 -867.9 - SF7BW125 to SF12BW125
512 -)))
513 -
514 -(((
515 -868.8 - FSK
516 -)))
517 -
518 -(((
519 519  
520 520  )))
521 521  
522 522  (((
523 -(% 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.**
524 524  )))
525 525  
526 526  (((
527 -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:**
528 528  )))
529 529  
530 -(((
531 -869.525 - SF9BW125 (RX2 downlink only)
532 -)))
533 533  
469 +[[image:1654592790040-760.png]]
534 534  
535 535  
536 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
537 537  
538 -(((
539 -Used in USA, Canada and South America. Default use CHE=2
540 540  
541 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
542 542  
543 -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)(%%)**
544 544  
545 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
546 546  
547 -904.3 - SF7BW125 to SF10BW125
548 548  
549 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
550 550  
551 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
552 552  
553 -904.9 - SF7BW125 to SF10BW125
554 554  
555 -905.1 - SF7BW125 to SF10BW125
556 556  
557 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
558 558  
490 +The LDDS20 has an internal LED which is to show the status of different state.
559 559  
560 -(% style="color:blue" %)**Downlink:**
561 561  
562 -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.
563 563  
564 -923.9 - SF7BW500 to SF12BW500
565 565  
566 -924.5 - SF7BW500 to SF12BW500
567 567  
568 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
569 569  
570 -925.7 - SF7BW500 to SF12BW500
571 571  
572 -926.3 - SF7BW500 to SF12BW500
573 -
574 -926.9 - SF7BW500 to SF12BW500
575 -
576 -927.5 - SF7BW500 to SF12BW500
577 -
578 -923.3 - SF12BW500(RX2 downlink only)
579 -
580 -
581 -
582 -)))
583 -
584 -=== 2.6.3  CN470-510 (CN470) ===
585 -
586 586  (((
587 -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/]]
588 588  )))
589 589  
590 590  (((
591 -(% style="color:blue" %)**Uplink:**
592 -)))
593 -
594 -(((
595 -486.3 - SF7BW125 to SF12BW125
596 -)))
597 -
598 -(((
599 -486.5 - SF7BW125 to SF12BW125
600 -)))
601 -
602 -(((
603 -486.7 - SF7BW125 to SF12BW125
604 -)))
605 -
606 -(((
607 -486.9 - SF7BW125 to SF12BW125
608 -)))
609 -
610 -(((
611 -487.1 - SF7BW125 to SF12BW125
612 -)))
613 -
614 -(((
615 -487.3 - SF7BW125 to SF12BW125
616 -)))
617 -
618 -(((
619 -487.5 - SF7BW125 to SF12BW125
620 -)))
621 -
622 -(((
623 -487.7 - SF7BW125 to SF12BW125
624 -)))
625 -
626 -(((
627 627  
628 628  )))
629 629  
630 630  (((
631 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
632 632  )))
633 633  
634 -(((
635 -506.7 - SF7BW125 to SF12BW125
636 -)))
637 637  
638 -(((
639 -506.9 - SF7BW125 to SF12BW125
640 -)))
641 641  
642 -(((
643 -507.1 - SF7BW125 to SF12BW125
644 -)))
517 +== 2.8  Battery Analysis ==
645 645  
646 -(((
647 -507.3 - SF7BW125 to SF12BW125
648 -)))
649 649  
650 -(((
651 -507.5 - SF7BW125 to SF12BW125
652 -)))
653 653  
654 -(((
655 -507.7 - SF7BW125 to SF12BW125
656 -)))
657 657  
658 -(((
659 -507.9 - SF7BW125 to SF12BW125
660 -)))
522 +=== 2.8.1  Battery Type ===
661 661  
662 -(((
663 -508.1 - SF7BW125 to SF12BW125
664 -)))
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.
665 665  
666 -(((
667 -505.3 - SF12BW125 (RX2 downlink only)
668 -)))
669 669  
527 +The battery related documents as below:
670 670  
671 -
672 -=== 2.6.4  AU915-928(AU915) ===
673 -
674 -(((
675 -Default use CHE=2
676 -
677 -(% style="color:blue" %)**Uplink:**
678 -
679 -916.8 - SF7BW125 to SF12BW125
680 -
681 -917.0 - SF7BW125 to SF12BW125
682 -
683 -917.2 - SF7BW125 to SF12BW125
684 -
685 -917.4 - SF7BW125 to SF12BW125
686 -
687 -917.6 - SF7BW125 to SF12BW125
688 -
689 -917.8 - SF7BW125 to SF12BW125
690 -
691 -918.0 - SF7BW125 to SF12BW125
692 -
693 -918.2 - SF7BW125 to SF12BW125
694 -
695 -
696 -(% style="color:blue" %)**Downlink:**
697 -
698 -923.3 - SF7BW500 to SF12BW500
699 -
700 -923.9 - SF7BW500 to SF12BW500
701 -
702 -924.5 - SF7BW500 to SF12BW500
703 -
704 -925.1 - SF7BW500 to SF12BW500
705 -
706 -925.7 - SF7BW500 to SF12BW500
707 -
708 -926.3 - SF7BW500 to SF12BW500
709 -
710 -926.9 - SF7BW500 to SF12BW500
711 -
712 -927.5 - SF7BW500 to SF12BW500
713 -
714 -923.3 - SF12BW500(RX2 downlink only)
715 -
716 -
717 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
718 718  )))
719 -
720 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
721 -
722 -(((
723 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
724 724  )))
725 -
726 -(((
727 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
728 728  )))
729 729  
730 -(((
731 -923.4 - SF7BW125 to SF10BW125
732 -)))
539 + [[image:image-20220615102527-16.png]]
733 733  
734 -(((
735 -
736 -)))
737 737  
738 -(((
739 -(% style="color:blue" %)**Additional Uplink Channel**:
740 -)))
741 741  
742 -(((
743 -(OTAA mode, channel added by JoinAccept message)
744 -)))
543 +== 2.8.2  Battery Note ==
745 745  
746 -(((
747 -
748 -)))
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.
749 749  
750 -(((
751 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
752 -)))
753 753  
754 -(((
755 -922.2 - SF7BW125 to SF10BW125
756 -)))
757 757  
758 -(((
759 -922.4 - SF7BW125 to SF10BW125
760 -)))
549 +=== 2.8.3  Replace the battery ===
761 761  
762 762  (((
763 -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.
764 764  )))
765 765  
766 766  (((
767 -922.8 - SF7BW125 to SF10BW125
768 -)))
769 -
770 -(((
771 -923.0 - SF7BW125 to SF10BW125
772 -)))
773 -
774 -(((
775 -922.0 - SF7BW125 to SF10BW125
776 -)))
777 -
778 -(((
779 779  
780 780  )))
781 781  
782 782  (((
783 -(% 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)
784 784  )))
785 785  
786 -(((
787 -923.6 - SF7BW125 to SF10BW125
788 -)))
789 789  
790 -(((
791 -923.8 - SF7BW125 to SF10BW125
792 -)))
793 793  
794 -(((
795 -924.0 - SF7BW125 to SF10BW125
796 -)))
565 +== 2.8.4  Battery Life Analyze ==
797 797  
798 -(((
799 -924.2 - SF7BW125 to SF10BW125
800 -)))
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:
801 801  
802 -(((
803 -924.4 - SF7BW125 to SF10BW125
804 -)))
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]]
805 805  
806 -(((
807 -924.6 - SF7BW125 to SF10BW125
808 -)))
809 809  
810 -(((
811 -
812 -)))
813 813  
814 -(((
815 -(% style="color:blue" %)**Downlink:**
816 -)))
817 -
818 -(((
819 -Uplink channels 1-8 (RX1)
820 -)))
821 -
822 -(((
823 -923.2 - SF10BW125 (RX2)
824 -)))
825 -
826 -
827 -
828 -=== 2.6.6  KR920-923 (KR920) ===
829 -
830 -(((
831 -(% style="color:blue" %)**Default channel:**
832 -)))
833 -
834 -(((
835 -922.1 - SF7BW125 to SF12BW125
836 -)))
837 -
838 -(((
839 -922.3 - SF7BW125 to SF12BW125
840 -)))
841 -
842 -(((
843 -922.5 - SF7BW125 to SF12BW125
844 -)))
845 -
846 -(((
847 -
848 -)))
849 -
850 -(((
851 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
852 -)))
853 -
854 -(((
855 -922.1 - SF7BW125 to SF12BW125
856 -)))
857 -
858 -(((
859 -922.3 - SF7BW125 to SF12BW125
860 -)))
861 -
862 -(((
863 -922.5 - SF7BW125 to SF12BW125
864 -)))
865 -
866 -(((
867 -922.7 - SF7BW125 to SF12BW125
868 -)))
869 -
870 -(((
871 -922.9 - SF7BW125 to SF12BW125
872 -)))
873 -
874 -(((
875 -923.1 - SF7BW125 to SF12BW125
876 -)))
877 -
878 -(((
879 -923.3 - SF7BW125 to SF12BW125
880 -)))
881 -
882 -(((
883 -
884 -)))
885 -
886 -(((
887 -(% style="color:blue" %)**Downlink:**
888 -)))
889 -
890 -(((
891 -Uplink channels 1-7(RX1)
892 -)))
893 -
894 -(((
895 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
896 -)))
897 -
898 -
899 -
900 -=== 2.6.7  IN865-867 (IN865) ===
901 -
902 -(((
903 -(% style="color:blue" %)**Uplink:**
904 -)))
905 -
906 -(((
907 -865.0625 - SF7BW125 to SF12BW125
908 -)))
909 -
910 -(((
911 -865.4025 - SF7BW125 to SF12BW125
912 -)))
913 -
914 -(((
915 -865.9850 - SF7BW125 to SF12BW125
916 -)))
917 -
918 -(((
919 -
920 -)))
921 -
922 -(((
923 -(% style="color:blue" %)**Downlink:**
924 -)))
925 -
926 -(((
927 -Uplink channels 1-3 (RX1)
928 -)))
929 -
930 -(((
931 -866.550 - SF10BW125 (RX2)
932 -)))
933 -
934 -
935 -
936 -== 2.7  LED Indicator ==
937 -
938 -The LDDS75 has an internal LED which is to show the status of different state.
939 -
940 -
941 -* Blink once when device power on.
942 -* The device detects the sensor and flashes 5 times.
943 -* Solid ON for 5 seconds once device successful Join the network.
944 -* Blink once when device transmit a packet.
945 -
946 -== 2.8  ​Firmware Change Log ==
947 -
948 -
949 -(((
950 -**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/]]
951 -)))
952 -
953 -(((
954 -
955 -)))
956 -
957 -(((
958 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
959 -)))
960 -
961 -
962 -
963 -== 2.9  Mechanical ==
964 -
965 -
966 -[[image:image-20220610172003-1.png]]
967 -
968 -
969 -[[image:image-20220610172003-2.png]]
970 -
971 -
972 -
973 -== 2.10  Battery Analysis ==
974 -
975 -=== 2.10.1  Battery Type ===
976 -
977 -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.
978 -
979 -
980 -The battery related documents as below:
981 -
982 -* (((
983 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
984 -)))
985 -* (((
986 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
987 -)))
988 -* (((
989 -[[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]]
990 -)))
991 -
992 - [[image:image-20220610172400-3.png]]
993 -
994 -
995 -
996 -=== 2.10.2  Replace the battery ===
997 -
998 -(((
999 -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.
1000 -)))
1001 -
1002 -(((
1003 -
1004 -)))
1005 -
1006 -(((
1007 -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)
1008 -)))
1009 -
1010 -
1011 -
1012 1012  = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1013 1013  
1014 1014  (((
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