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7 7  **RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
9 9  
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 19  = 1.Introduction =
20 20  
21 21  == 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
... ... @@ -225,9 +225,7 @@
225 225  == 3.3 Configure Commands to read data ==
226 226  
227 227  (((
228 -There are plenty of RS485 and TTL level devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-BL supports flexible command set. User can use [[AT Commands or LoRaWAN Downlink>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] Command to configure how RS485-BL should read the sensor and how to handle the return from RS485 or TTL sensors.
229 -
230 -
225 +There are plenty of RS485 and TTL level devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-BL supports flexible command set. User can use [[AT Commands or LoRaWAN Downlink>>path:#AT_COMMAND]] Command to configure how RS485-BL should read the sensor and how to handle the return from RS485 or TTL sensors.
231 231  )))
232 232  
233 233  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
... ... @@ -506,82 +506,64 @@
506 506  
507 507  [[image:1653271763403-806.png]]
508 508  
509 -=== 3.3.4 Compose the uplink payload ===
510 510  
511 -(((
505 +
506 +
507 +1.
508 +11.
509 +111. Compose the uplink payload
510 +
512 512  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.**
513 -)))
514 514  
515 -(((
516 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
517 -)))
518 518  
519 -(((
520 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
521 -)))
514 +**Examples: AT+DATAUP=0**
522 522  
523 -(((
516 +Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
517 +
524 524  Final Payload is
525 -)))
526 526  
527 -(((
528 -(% style="color:#4f81bd" %)Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
529 -)))
520 +Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
530 530  
531 -(((
532 532  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
533 -)))
534 534  
535 -[[image:1653272787040-634.png||height="515" width="719"]]
524 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
536 536  
537 -(((
538 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
539 -)))
540 540  
541 -(((
542 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
543 -)))
544 544  
545 -(((
528 +**Examples: AT+DATAUP=1**
529 +
530 +Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
531 +
546 546  Final Payload is
547 -)))
548 548  
549 -(((
550 -(% style="color:#4f81bd" %)Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
551 -)))
534 +Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
552 552  
553 -1. (((
554 -Battery Info (2 bytes): Battery voltage
555 -)))
556 -1. (((
557 -PAYVER (1 byte): Defined by AT+PAYVER
558 -)))
559 -1. (((
560 -PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
561 -)))
562 -1. (((
563 -PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
564 -)))
565 -1. (((
566 -DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
567 -)))
536 +1. Battery Info (2 bytes): Battery voltage
537 +1. PAYVER (1 byte): Defined by AT+PAYVER
538 +1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
539 +1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
540 +1. DATA: Valid value: max 6 bytes(US915 version here, [[Notice*!>>path:#max_byte]]) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
568 568  
569 -[[image:1653272817147-600.png||height="437" width="717"]]
542 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
570 570  
544 +
571 571  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
572 572  
573 -DATA1=RETURN1 Valid Value = (% style="background-color:#4f81bd; color:white" %) 20 20 0a 33 90 41
547 +DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
574 574  
575 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= (% style="background-color:#4f81bd; color:white" %)02 aa 05 81 0a 20
549 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
576 576  
577 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 =(% style="background-color:#4f81bd; color:white" %) 20 20 20 2d 30
551 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
578 578  
553 +
554 +
579 579  Below are the uplink payloads:
580 580  
581 -[[image:1653272901032-107.png]]
557 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
582 582  
583 -(% style="color:red" %)Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
584 584  
560 +Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
561 +
585 585   ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
586 586  
587 587   * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
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590 590  
591 591   ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
592 592  
593 -=== 3.3.5 Uplink on demand ===
594 594  
595 -(((
571 +
572 +1.
573 +11.
574 +111. Uplink on demand
575 +
596 596  Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
597 -)))
598 598  
599 -(((
600 600  Downlink control command:
601 -)))
602 602  
603 -(((
604 -**0x08 command**: Poll an uplink with current command set in RS485-BL.
605 -)))
580 +[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
606 606  
607 -(((
608 -**0xA8 command**: Send a command to RS485-BL and uplink the output from sensors.
609 -)))
582 +[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
610 610  
611 -=== 3.3.6 Uplink on Interrupt ===
612 612  
613 -Put the interrupt sensor between 3.3v_out and GPIO ext.
614 614  
615 -[[image:1653273818896-432.png]]
586 +1.
587 +11.
588 +111. Uplink on Interrupt
616 616  
617 -(((
590 +Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
591 +
618 618  AT+INTMOD=0  Disable Interrupt
619 -)))
620 620  
621 -(((
622 622  AT+INTMOD=1  Interrupt trigger by rising or falling edge.
623 -)))
624 624  
625 -(((
626 626  AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
627 -)))
628 628  
629 -(((
630 630  AT+INTMOD=3  Interrupt trigger by rising edge.
631 -)))
632 632  
633 -== 3.4 Uplink Payload ==
634 634  
635 -(% border="1" style="background-color:#4f81bd; color:white; width:850px" %)
636 -|**Size(bytes)**|(% style="width:130px" %)**2**|(% style="width:93px" %)**1**|(% style="width:509px" %)**Length depends on the return from the commands**
637 -|Value|(% style="width:130px" %)(((
638 -(((
601 +1.
602 +11. Uplink Payload
603 +
604 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
605 +|Value|(((
639 639  Battery(mV)
640 -)))
641 641  
642 -(((
643 643  &
644 -)))
645 645  
646 -(((
647 647  Interrupt _Flag
648 -)))
649 -)))|(% style="width:93px" %)(((
611 +)))|(((
650 650  PAYLOAD_VER
651 651  
652 652  
653 -)))|(% 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.
615 +)))|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.
654 654  
655 655  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
656 656  
657 -(((
619 +
658 658  function Decoder(bytes, port) {
659 -)))
660 660  
661 -(((
662 662  ~/~/Payload Formats of RS485-BL Deceive
663 -)))
664 664  
665 -(((
666 666  return {
667 -)))
668 668  
669 -(((
670 670   ~/~/Battery,units:V
671 -)))
672 672  
673 -(((
674 674   BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
675 -)))
676 676  
677 -(((
678 678   ~/~/GPIO_EXTI 
679 -)))
680 680  
681 -(((
682 682   EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
683 -)))
684 684  
685 -(((
686 686   ~/~/payload of version
687 -)))
688 688  
689 -(((
690 690   Pay_ver:bytes[2],
691 -)))
692 692  
693 -(((
694 694   };
695 -)))
696 696  
697 -(((
698 698   }
699 -)))
700 700  
701 -(((
642 +
643 +
644 +
645 +
646 +
647 +
702 702  TTN V3 uplink screen shot.
703 -)))
704 704  
705 -[[image:1653274001211-372.png||height="192" width="732"]]
650 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
706 706  
707 -== 3.5 Configure RS485-BL via AT or Downlink ==
652 +1.
653 +11. Configure RS485-BL via AT or Downlink
708 708  
709 709  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
710 710  
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