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Last modified by Xiaoling on 2025/04/23 15:57
From version 40.48
edited by Xiaoling
on 2022/06/06 10:37
Change comment: There is no comment for this version
To version 41.3
edited by Xiaoling
on 2022/06/06 10:54
Change comment: There is no comment for this version

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383 383  )))
384 384  
385 385  
386 +
386 386  === 3.3.2 Configure sensors ===
387 387  
388 388  (((
... ... @@ -394,8 +394,8 @@
394 394  )))
395 395  
396 396  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
397 -|=**AT Commands**|=(% style="width: 110px;" %)**Description**|=(% style="width: 190px;" %)**Example**
398 -|AT+CFGDEV|(% style="width:190px" %)(((
398 +|=(% style="width: 120px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
399 +|AT+CFGDEV|(% style="width:120px" %)(((
399 399  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
400 400  
401 401  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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406 406  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]].
407 407  
408 408  
410 +
409 409  === 3.3.3 Configure read commands for each sampling ===
410 410  
411 411  (((
... ... @@ -472,117 +472,209 @@
472 472  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
473 473  )))
474 474  
477 +(((
475 475  **Examples:**
479 +)))
476 476  
481 +(((
477 477  Below are examples for the how above AT Commands works.
483 +)))
478 478  
485 +(((
479 479  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
487 +)))
480 480  
481 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:501px" %)
489 +(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:500px" %)
482 482  |(% style="width:498px" %)(((
491 +(((
483 483  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
493 +)))
484 484  
495 +(((
485 485  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
497 +)))
486 486  
499 +(((
487 487  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
488 488  )))
502 +)))
489 489  
504 +(((
490 490  For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
506 +)))
491 491  
508 +(((
492 492  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
510 +)))
493 493  
512 +(((
494 494  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
514 +)))
495 495  
496 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:580px" %)
516 +(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:500px" %)
497 497  |(% style="width:577px" %)(((
518 +(((
498 498  **AT+SEARCHx=aa,xx xx xx xx xx**
520 +)))
499 499  
500 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
501 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
522 +* (((
523 +**aa: 1: prefix match mode; 2: prefix and suffix match mode**
502 502  )))
525 +* (((
526 +**xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
527 +)))
528 +)))
503 503  
530 +(((
504 504  **Examples:**
532 +)))
505 505  
534 +(((
506 506  1）For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
536 +)))
507 507  
538 +(((
508 508  If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
540 +)))
509 509  
542 +(((
510 510  The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)**2e 30 58 5f 36 41 30 31 00 49**
544 +)))
511 511  
546 +(((
512 512  [[image:1653271044481-711.png]]
548 +)))
513 513  
550 +(((
514 514  2）For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
552 +)))
515 515  
554 +(((
516 516  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
556 +)))
517 517  
558 +(((
518 518  Device will search the bytes between 1E 56 34 and 31 00 49. So it is(% style="background-color:yellow" %) **2e 30 58 5f 36 41 30**
560 +)))
519 519  
562 +(((
520 520  [[image:1653271276735-972.png]]
564 +)))
521 521  
566 +(((
522 522  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
568 +)))
523 523  
524 -(% style="background-color:#4f81bd; color:white; width:729px" %)
570 +(% style="background-color:#4f81bd; color:white; width:510px" %)
525 525  |(% style="width:726px" %)(((
572 +(((
526 526  **AT+DATACUTx=a,b,c**
574 +)))
527 527  
528 -* **a: length for the return of AT+COMMAND**
529 -* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
530 -* **c: define the position for valid value.  **
576 +* (((
577 +**a: length for the return of AT+COMMAND**
531 531  )))
579 +* (((
580 +**b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
581 +)))
582 +* (((
583 +**c: define the position for valid value.  **
584 +)))
585 +)))
532 532  
587 +(((
533 533  **Examples:**
589 +)))
534 534  
535 -* Grab bytes:
591 +* (((
592 +Grab bytes:
593 +)))
536 536  
595 +(((
537 537  [[image:1653271581490-837.png||height="313" width="722"]]
597 +)))
538 538  
599 +(((
600 +
601 +)))
539 539  
540 -* Grab a section.
603 +* (((
604 +Grab a section.
605 +)))
541 541  
607 +(((
542 542  [[image:1653271648378-342.png||height="326" width="720"]]
609 +)))
543 543  
611 +(((
612 +
613 +)))
544 544  
545 -* Grab different sections.
615 +* (((
616 +Grab different sections.
617 +)))
546 546  
619 +(((
547 547  [[image:1653271657255-576.png||height="305" width="730"]]
621 +)))
548 548  
549 549  (((
624 +(((
550 550  (% style="color:red" %)**Note:**
551 551  )))
627 +)))
552 552  
553 553  (((
630 +(((
554 554  AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
555 555  )))
633 +)))
556 556  
557 557  (((
636 +(((
558 558  **Example:**
559 559  )))
639 +)))
560 560  
561 561  (((
642 +(((
562 562  (% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
563 563  )))
645 +)))
564 564  
565 565  (((
648 +(((
566 566  (% style="color:red" %)AT+SEARCH1=1,1E 56 34
567 567  )))
651 +)))
568 568  
569 569  (((
654 +(((
570 570  (% style="color:red" %)AT+DATACUT1=0,2,1~~5
571 571  )))
657 +)))
572 572  
573 573  (((
660 +(((
574 574  (% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
575 575  )))
663 +)))
576 576  
577 577  (((
666 +(((
578 578  (% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
579 579  )))
669 +)))
580 580  
581 581  (((
672 +(((
582 582  (% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
583 583  )))
675 +)))
584 584  
677 +(((
585 585  [[image:1653271763403-806.png]]
679 +)))
586 586  
587 587  
588 588  === 3.3.4 Compose the uplink payload ===
... ... @@ -589,10 +589,14 @@
589 589  
590 590  (((
591 591  Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
686 +
687 +
592 592  )))
593 593  
594 594  (((
595 595  (% style="color:#037691" %)**Examples: AT+DATAUP=0**
692 +
693 +
596 596  )))
597 597  
598 598  (((
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725 725  
726 726  == 3.4 Uplink Payload ==
727 727  
728 -(% border="1" style="background-color:#4f81bd; color:white; width:850px" %)
729 -|**Size(bytes)**|(% style="width:130px" %)**2**|(% style="width:93px" %)**1**|(% style="width:509px" %)**Length depends on the return from the commands**
730 -|Value|(% style="width:130px" %)(((
731 -(((
732 -Battery(mV)
733 -)))
826 +[[image:image-20220606105412-1.png]]
734 734  
735 -(((
736 -&
737 -)))
738 -
739 -(((
740 -Interrupt _Flag
741 -)))
742 -)))|(% style="width:93px" %)(((
743 -PAYLOAD_VER
744 -
745 -
746 -)))|(% style="width:509px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
747 -
748 748  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
749 749  
750 750  (((
image-20220606105412-1.png
Author
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1 +XWiki.Xiaoling
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1 +13.9 KB
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