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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 169.8
edited by Xiaoling
on 2022/06/15 09:35
Change comment: There is no comment for this version
To version 174.10
edited by Xiaoling
on 2022/06/15 10:44
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.
... ... @@ -196,30 +196,33 @@
196 196  
197 197  == 1.6 ​ Applications ==
198 198  
199 -
200 -
201 201  * Smart liquid control solution.
202 202  * Smart liquefied gas solution.
203 203  
201 +== 1.7  Precautions ==
204 204  
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 +* 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 +* 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.
205 205  
206 -== 1.6  Pin mapping and power on ==
207 +== 1.8  Pin mapping and power on ==
207 207  
208 208  
209 -[[image:1654847583902-256.png]]
210 +[[image:1655257026882-201.png]]
210 210  
211 211  
212 212  
213 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
214 += 2.  Configure LDDS20 to connect to LoRaWAN network =
214 214  
216 +
215 215  == 2.1  How it works ==
216 216  
217 217  (((
218 -The LDDS75 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.
219 219  )))
220 220  
221 221  (((
222 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
224 +In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0UsingtheATCommands"]]to set the keys in the LDDS20.
223 223  )))
224 224  
225 225  
... ... @@ -231,7 +231,7 @@
231 231  )))
232 232  
233 233  (((
234 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
235 235  )))
236 236  
237 237  (((
... ... @@ -241,11 +241,11 @@
241 241  (((
242 242  
243 243  
244 -(% 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.
245 245  )))
246 246  
247 247  (((
248 -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.
249 249  )))
250 250  
251 251  [[image:image-20220607170145-1.jpeg]]
... ... @@ -275,6 +275,7 @@
275 275  [[image:image-20220610161353-7.png]]
276 276  
277 277  
280 +
278 278  You can also choose to create the device manually.
279 279  
280 280   [[image:image-20220610161538-8.png]]
... ... @@ -287,16 +287,17 @@
287 287  
288 288  
289 289  
290 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
291 291  
292 292  
293 293  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
294 294  
295 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
296 296  
297 297  
301 +
298 298  (((
299 -(% 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.
300 300  )))
301 301  
302 302  [[image:1654849068701-275.png]]
... ... @@ -307,12 +307,10 @@
307 307  
308 308  (((
309 309  (((
310 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
311 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
312 312  
313 -(((
314 -Uplink payload includes in total 4 bytes.
315 -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).
316 316  )))
317 317  )))
318 318  
... ... @@ -339,7 +339,7 @@
339 339  === 2.3.1  Battery Info ===
340 340  
341 341  
342 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
343 343  
344 344  Ex1: 0x0B45 = 2885mV
345 345  
... ... @@ -350,20 +350,21 @@
350 350  === 2.3.2  Distance ===
351 351  
352 352  (((
353 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
354 354  )))
355 355  
356 356  (((
357 -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.**
358 358  )))
359 359  
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.
360 360  
361 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
362 -* 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.
363 363  
366 +
364 364  === 2.3.3  Interrupt Pin ===
365 365  
366 -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.
367 367  
368 368  **Example:**
369 369  
... ... @@ -409,699 +409,300 @@
409 409  The payload decoder function for TTN V3 is here:
410 410  
411 411  (((
412 -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/]]
413 413  )))
414 414  
415 415  
416 416  
417 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
418 418  
419 -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.
420 420  
424 +[[image:image-20220615100930-15.png]]
421 421  
422 422  
423 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
424 424  
425 -(((
426 -[[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:
427 -)))
428 428  
429 -(((
430 -
431 -)))
430 +* (% style="color:blue" %)**Set TDC**
432 432  
433 -(((
434 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
435 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
436 436  
437 -(((
438 -(% 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:**
439 -)))
434 +Payload:    01 00 00 1E    TDC=30S
440 440  
436 +Payload:    01 00 00 3C    TDC=60S
441 441  
442 -[[image:1654592790040-760.png]]
443 443  
439 +* (% style="color:blue" %)**Reset**
444 444  
445 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
446 446  
447 447  
448 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
449 449  
450 -(% 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
451 451  
452 -[[image:1654851029373-510.png]]
453 453  
454 454  
455 -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 ==
456 456  
457 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
458 -
459 -
460 -
461 -== 2.6  Frequency Plans ==
462 -
463 463  (((
464 -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:
465 465  )))
466 466  
467 -
468 -
469 -=== 2.6.1  EU863-870 (EU868) ===
470 -
471 471  (((
472 -(% style="color:blue" %)**Uplink:**
473 -)))
474 -
475 -(((
476 -868.1 - SF7BW125 to SF12BW125
477 -)))
478 -
479 -(((
480 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
481 -)))
482 -
483 -(((
484 -868.5 - SF7BW125 to SF12BW125
485 -)))
486 -
487 -(((
488 -867.1 - SF7BW125 to SF12BW125
489 -)))
490 -
491 -(((
492 -867.3 - SF7BW125 to SF12BW125
493 -)))
494 -
495 -(((
496 -867.5 - SF7BW125 to SF12BW125
497 -)))
498 -
499 -(((
500 -867.7 - SF7BW125 to SF12BW125
501 -)))
502 -
503 -(((
504 -867.9 - SF7BW125 to SF12BW125
505 -)))
506 -
507 -(((
508 -868.8 - FSK
509 -)))
510 -
511 -(((
512 512  
513 513  )))
514 514  
515 515  (((
516 -(% 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.**
517 517  )))
518 518  
519 519  (((
520 -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:**
521 521  )))
522 522  
523 -(((
524 -869.525 - SF9BW125 (RX2 downlink only)
525 -)))
526 526  
469 +[[image:1654592790040-760.png]]
527 527  
528 528  
529 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
530 530  
531 -(((
532 -Used in USA, Canada and South America. Default use CHE=2
533 533  
534 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
535 535  
536 -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)(%%)**
537 537  
538 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
539 539  
540 -904.3 - SF7BW125 to SF10BW125
541 541  
542 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
543 543  
544 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
545 545  
546 -904.9 - SF7BW125 to SF10BW125
547 547  
548 -905.1 - SF7BW125 to SF10BW125
549 549  
550 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
551 551  
490 +The LDDS20 has an internal LED which is to show the status of different state.
552 552  
553 -(% style="color:blue" %)**Downlink:**
554 554  
555 -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.
556 556  
557 -923.9 - SF7BW500 to SF12BW500
558 558  
559 -924.5 - SF7BW500 to SF12BW500
560 560  
561 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
562 562  
563 -925.7 - SF7BW500 to SF12BW500
564 564  
565 -926.3 - SF7BW500 to SF12BW500
566 -
567 -926.9 - SF7BW500 to SF12BW500
568 -
569 -927.5 - SF7BW500 to SF12BW500
570 -
571 -923.3 - SF12BW500(RX2 downlink only)
572 -
573 -
574 -
575 -)))
576 -
577 -=== 2.6.3  CN470-510 (CN470) ===
578 -
579 579  (((
580 -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/]]
581 581  )))
582 582  
583 583  (((
584 -(% style="color:blue" %)**Uplink:**
585 -)))
586 -
587 -(((
588 -486.3 - SF7BW125 to SF12BW125
589 -)))
590 -
591 -(((
592 -486.5 - SF7BW125 to SF12BW125
593 -)))
594 -
595 -(((
596 -486.7 - SF7BW125 to SF12BW125
597 -)))
598 -
599 -(((
600 -486.9 - SF7BW125 to SF12BW125
601 -)))
602 -
603 -(((
604 -487.1 - SF7BW125 to SF12BW125
605 -)))
606 -
607 -(((
608 -487.3 - SF7BW125 to SF12BW125
609 -)))
610 -
611 -(((
612 -487.5 - SF7BW125 to SF12BW125
613 -)))
614 -
615 -(((
616 -487.7 - SF7BW125 to SF12BW125
617 -)))
618 -
619 -(((
620 620  
621 621  )))
622 622  
623 623  (((
624 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
625 625  )))
626 626  
627 -(((
628 -506.7 - SF7BW125 to SF12BW125
629 -)))
630 630  
631 -(((
632 -506.9 - SF7BW125 to SF12BW125
633 -)))
634 634  
635 -(((
636 -507.1 - SF7BW125 to SF12BW125
637 -)))
517 +== 2.8  Battery Analysis ==
638 638  
639 -(((
640 -507.3 - SF7BW125 to SF12BW125
641 -)))
642 642  
643 -(((
644 -507.5 - SF7BW125 to SF12BW125
645 -)))
646 646  
647 -(((
648 -507.7 - SF7BW125 to SF12BW125
649 -)))
650 650  
651 -(((
652 -507.9 - SF7BW125 to SF12BW125
653 -)))
522 +=== 2.8.1  Battery Type ===
654 654  
655 -(((
656 -508.1 - SF7BW125 to SF12BW125
657 -)))
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.
658 658  
659 -(((
660 -505.3 - SF12BW125 (RX2 downlink only)
661 -)))
662 662  
527 +The battery related documents as below:
663 663  
664 -
665 -=== 2.6.4  AU915-928(AU915) ===
666 -
667 -(((
668 -Default use CHE=2
669 -
670 -(% style="color:blue" %)**Uplink:**
671 -
672 -916.8 - SF7BW125 to SF12BW125
673 -
674 -917.0 - SF7BW125 to SF12BW125
675 -
676 -917.2 - SF7BW125 to SF12BW125
677 -
678 -917.4 - SF7BW125 to SF12BW125
679 -
680 -917.6 - SF7BW125 to SF12BW125
681 -
682 -917.8 - SF7BW125 to SF12BW125
683 -
684 -918.0 - SF7BW125 to SF12BW125
685 -
686 -918.2 - SF7BW125 to SF12BW125
687 -
688 -
689 -(% style="color:blue" %)**Downlink:**
690 -
691 -923.3 - SF7BW500 to SF12BW500
692 -
693 -923.9 - SF7BW500 to SF12BW500
694 -
695 -924.5 - SF7BW500 to SF12BW500
696 -
697 -925.1 - SF7BW500 to SF12BW500
698 -
699 -925.7 - SF7BW500 to SF12BW500
700 -
701 -926.3 - SF7BW500 to SF12BW500
702 -
703 -926.9 - SF7BW500 to SF12BW500
704 -
705 -927.5 - SF7BW500 to SF12BW500
706 -
707 -923.3 - SF12BW500(RX2 downlink only)
708 -
709 -
710 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
711 711  )))
712 -
713 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
714 -
715 -(((
716 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
717 717  )))
718 -
719 -(((
720 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
721 721  )))
722 722  
723 -(((
724 -923.4 - SF7BW125 to SF10BW125
725 -)))
539 + [[image:image-20220615102527-16.png]]
726 726  
727 -(((
728 -
729 -)))
730 730  
731 -(((
732 -(% style="color:blue" %)**Additional Uplink Channel**:
733 -)))
734 734  
735 -(((
736 -(OTAA mode, channel added by JoinAccept message)
737 -)))
543 +== 2.8.2  Battery Note ==
738 738  
739 -(((
740 -
741 -)))
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.
742 742  
743 -(((
744 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
745 -)))
746 746  
747 -(((
748 -922.2 - SF7BW125 to SF10BW125
749 -)))
750 750  
751 -(((
752 -922.4 - SF7BW125 to SF10BW125
753 -)))
549 +=== 2.8.3  Replace the battery ===
754 754  
755 755  (((
756 -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.
757 757  )))
758 758  
759 759  (((
760 -922.8 - SF7BW125 to SF10BW125
761 -)))
762 -
763 -(((
764 -923.0 - SF7BW125 to SF10BW125
765 -)))
766 -
767 -(((
768 -922.0 - SF7BW125 to SF10BW125
769 -)))
770 -
771 -(((
772 772  
773 773  )))
774 774  
775 775  (((
776 -(% 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)
777 777  )))
778 778  
779 -(((
780 -923.6 - SF7BW125 to SF10BW125
781 -)))
782 782  
783 -(((
784 -923.8 - SF7BW125 to SF10BW125
785 -)))
786 786  
787 -(((
788 -924.0 - SF7BW125 to SF10BW125
789 -)))
565 +== 2.8.4  Battery Life Analyze ==
790 790  
791 -(((
792 -924.2 - SF7BW125 to SF10BW125
793 -)))
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:
794 794  
795 -(((
796 -924.4 - SF7BW125 to SF10BW125
797 -)))
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]]
798 798  
799 -(((
800 -924.6 - SF7BW125 to SF10BW125
801 -)))
802 802  
803 -(((
804 -
805 -)))
806 806  
807 -(((
808 -(% style="color:blue" %)**Downlink:**
809 -)))
573 += 3.  Using the AT Commands =
810 810  
811 811  (((
812 -Uplink channels 1-8 (RX1)
813 -)))
814 -
815 815  (((
816 -923.2 - SF10BW125 (RX2)
817 -)))
818 -
819 -
820 -
821 -=== 2.6.6  KR920-923 (KR920) ===
822 -
823 -(((
824 -(% style="color:blue" %)**Default channel:**
825 -)))
826 -
827 -(((
828 -922.1 - SF7BW125 to SF12BW125
829 -)))
830 -
831 -(((
832 -922.3 - SF7BW125 to SF12BW125
833 -)))
834 -
835 -(((
836 -922.5 - SF7BW125 to SF12BW125
837 -)))
838 -
839 -(((
840 840  
841 841  )))
842 -
843 -(((
844 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
845 845  )))
846 846  
847 -(((
848 -922.1 - SF7BW125 to SF12BW125
849 -)))
581 +== 3.1  Access AT Commands ==
850 850  
851 -(((
852 -922.3 - SF7BW125 to SF12BW125
853 -)))
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.
854 854  
855 -(((
856 -922.5 - SF7BW125 to SF12BW125
857 -)))
858 858  
859 -(((
860 -922.7 - SF7BW125 to SF12BW125
861 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
862 862  
863 -(((
864 -922.9 - SF7BW125 to SF12BW125
865 -)))
866 866  
867 -(((
868 -923.1 - SF7BW125 to SF12BW125
869 -)))
589 +Or if you have below board, use below connection:
870 870  
871 -(((
872 -923.3 - SF7BW125 to SF12BW125
873 -)))
874 874  
875 -(((
876 -
877 -)))
592 +[[image:image-20220610172924-5.png]]
878 878  
879 -(((
880 -(% style="color:blue" %)**Downlink:**
881 -)))
882 882  
883 883  (((
884 -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:
885 885  )))
886 886  
887 -(((
888 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
889 -)))
890 890  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
891 891  
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/]].
892 892  
893 -=== 2.6.7  IN865-867 (IN865) ===
894 894  
895 -(((
896 -(% style="color:blue" %)**Uplink:**
897 -)))
605 +AT+<CMD>?  :  Help on <CMD>
898 898  
899 -(((
900 -865.0625 - SF7BW125 to SF12BW125
901 -)))
607 +AT+<CMD>  :  Run <CMD>
902 902  
903 -(((
904 -865.4025 - SF7BW125 to SF12BW125
905 -)))
609 +AT+<CMD>=<value>  :  Set the value
906 906  
907 -(((
908 -865.9850 - SF7BW125 to SF12BW125
909 -)))
611 +AT+<CMD>=?  :  Get the value
910 910  
911 -(((
912 -
913 -)))
914 914  
915 -(((
916 -(% style="color:blue" %)**Downlink:**
917 -)))
614 +**General Commands** : 
918 918  
919 -(((
920 -Uplink channels 1-3 (RX1)
921 -)))
616 +AT                    : Attention       
922 922  
923 -(((
924 -866.550 - SF10BW125 (RX2)
925 -)))
618 +AT?                            : Short Help     
926 926  
620 +ATZ                            : MCU Reset    
927 927  
622 +AT+TDC           : Application Data Transmission Interval 
928 928  
929 -== 2.7  LED Indicator ==
930 930  
931 -The LDDS75 has an internal LED which is to show the status of different state.
625 +**Keys, IDs and EUIs management:**
932 932  
627 +AT+APPEUI              : Application EUI      
933 933  
934 -* Blink once when device power on.
935 -* The device detects the sensor and flashes 5 times.
936 -* Solid ON for 5 seconds once device successful Join the network.
937 -* Blink once when device transmit a packet.
629 +AT+APPKEY              : Application Key     
938 938  
939 -== 2.8  ​Firmware Change Log ==
631 +AT+APPSKEY            : Application Session Key
940 940  
633 +AT+DADDR              : Device Address     
941 941  
942 -(((
943 -**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/]]
944 -)))
635 +AT+DEUI                   : Device EUI     
945 945  
946 -(((
947 -
948 -)))
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
949 949  
950 -(((
951 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
952 -)))
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
953 953  
641 +AT+CFM          : Confirm Mode       
954 954  
643 +AT+CFS                     : Confirm Status       
955 955  
956 -== 2.9  Mechanical ==
645 +AT+JOIN          : Join LoRa? Network       
957 957  
647 +AT+NJM          : LoRa? Network Join Mode    
958 958  
959 -[[image:image-20220610172003-1.png]]
649 +AT+NJS                     : LoRa? Network Join Status    
960 960  
651 +AT+RECV                  : Print Last Received Data in Raw Format
961 961  
962 -[[image:image-20220610172003-2.png]]
653 +AT+RECVB                : Print Last Received Data in Binary Format      
963 963  
655 +AT+SEND                  : Send Text Data      
964 964  
657 +AT+SENB                  : Send Hexadecimal Data
965 965  
966 -== 2.10  Battery Analysis ==
967 967  
968 -=== 2.10.1  Battery Type ===
660 +**LoRa Network Management :**
969 969  
970 -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
971 971  
664 +AT+CLASS                : LoRa Class(Currently only support class A
972 972  
973 -The battery related documents as below:
666 +AT+DCS           : Duty Cycle Setting 
974 974  
975 -* (((
976 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
977 -)))
978 -* (((
979 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
980 -)))
981 -* (((
982 -[[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]]
983 -)))
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
984 984  
985 - [[image:image-20220610172400-3.png]]
670 +AT+FCD           : Frame Counter Downlink       
986 986  
672 +AT+FCU           : Frame Counter Uplink   
987 987  
674 +AT+JN1DL                : Join Accept Delay1
988 988  
989 -=== 2.10.2  Replace the battery ===
676 +AT+JN2DL                : Join Accept Delay2
990 990  
991 -(((
992 -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.
993 -)))
678 +AT+PNM                   : Public Network Mode   
994 994  
995 -(((
996 -
997 -)))
680 +AT+RX1DL                : Receive Delay1      
998 998  
999 -(((
1000 -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)
1001 -)))
682 +AT+RX2DL                : Receive Delay2      
1002 1002  
684 +AT+RX2DR               : Rx2 Window Data Rate 
1003 1003  
686 +AT+RX2FQ               : Rx2 Window Frequency
1004 1004  
1005 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
688 +AT+TXP           : Transmit Power
1006 1006  
1007 -(((
1008 -(((
1009 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1010 -)))
1011 -)))
1012 1012  
1013 -* (((
1014 -(((
1015 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1016 -)))
1017 -)))
1018 -* (((
1019 -(((
1020 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1021 -)))
1022 -)))
691 +**Information :**
1023 1023  
1024 -(((
1025 -(((
1026 -
1027 -)))
693 +AT+RSSI           : RSSI of the Last Received Packet   
1028 1028  
1029 -(((
1030 -There are two kinds of commands to configure LDDS75, they are:
1031 -)))
1032 -)))
695 +AT+SNR           : SNR of the Last Received Packet   
1033 1033  
1034 -* (((
1035 -(((
1036 -(% style="color:#4f81bd" %)** General Commands**.
1037 -)))
1038 -)))
697 +AT+VER           : Image Version and Frequency Band       
1039 1039  
1040 -(((
1041 -(((
1042 -These commands are to configure:
1043 -)))
1044 -)))
699 +AT+FDR           : Factory Data Reset
1045 1045  
1046 -* (((
1047 -(((
1048 -General system settings like: uplink interval.
1049 -)))
1050 -)))
1051 -* (((
1052 -(((
1053 -LoRaWAN protocol & radio related command.
1054 -)))
1055 -)))
701 +AT+PORT                  : Application Port    
1056 1056  
1057 -(((
1058 -(((
1059 -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]]
1060 -)))
1061 -)))
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
1062 1062  
1063 -(((
1064 -(((
1065 -
1066 -)))
1067 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1068 1068  
1069 -* (((
1070 -(((
1071 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1072 -)))
1073 -)))
1074 1074  
1075 -(((
1076 -(((
1077 -These commands only valid for LDDS75, as below:
1078 -)))
1079 -)))
1080 1080  
1081 -
1082 -
1083 -== 3.1  Access AT Commands ==
1084 -
1085 -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.
1086 -
1087 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1088 -
1089 -
1090 -Or if you have below board, use below connection:
1091 -
1092 -
1093 -[[image:image-20220610172924-5.png]]
1094 -
1095 -
1096 -(((
1097 -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:
1098 -)))
1099 -
1100 -
1101 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1102 -
1103 -
1104 -
1105 1105  == 3.2  Set Transmit Interval Time ==
1106 1106  
1107 1107  Feature: Change LoRaWAN End Node Transmit Interval.
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