Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 38.1 >
edited by Xiaoling
on 2022/06/02 16:09
To version < 44.1 >
edited by Xiaoling
on 2022/06/02 16:53
>
Change comment: Uploaded new attachment "image-20220602165351-7.png", version {1}

Summary

Details

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Content
... ... @@ -461,125 +461,77 @@
461 461  
462 462  
463 463  
464 -1.
465 -11.
466 -111. Uplink on Interrupt
464 +=== 3.3.6 Uplink on Interrupt ===
467 467  
468 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
466 +RS485-LN support external Interrupt uplink since hardware v1.2 release.
469 469  
470 -AT+INTMOD=0  Disable Interrupt
468 +[[image:1654157342174-798.png]]
471 471  
472 -AT+INTMOD=1  Interrupt trigger by rising or falling edge.
470 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
473 473  
474 -AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
475 475  
476 -AT+INTMOD=3  Interrupt trigger by rising edge.
473 +== 3.4 Uplink Payload ==
477 477  
478 -
479 -1.
480 -11. Uplink Payload
481 -
482 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
483 -|Value|(((
475 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
476 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
477 +|Value|(% style="width:120px" %)(((
484 484  Battery(mV)
485 485  
486 486  &
487 487  
488 488  Interrupt _Flag
489 -)))|(((
483 +)))|(% style="width:116px" %)(((
490 490  PAYLOAD_VER
491 491  
492 492  
493 -)))|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.
487 +)))|(% style="width:386px" %)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.
494 494  
495 495  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
496 496  
497 497  
498 -function Decoder(bytes, port) {
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
499 499  
500 -~/~/Payload Formats of RS485-BL Deceive
494 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
501 501  
502 -return {
503 -
504 - ~/~/Battery,units:V
505 -
506 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
507 -
508 - ~/~/GPIO_EXTI 
509 -
510 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
511 -
512 - ~/~/payload of version
513 -
514 - Pay_ver:bytes[2],
515 -
516 - };
517 -
518 - }
519 -
520 -
521 -
522 -
523 -
524 -
525 -
526 -TTN V3 uplink screen shot.
527 -
528 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
529 -
530 -1.
531 -11. Configure RS485-BL via AT or Downlink
532 -
533 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
534 -
535 535  There are two kinds of Commands:
536 536  
537 -* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
498 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
538 538  
539 -* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
540 540  
541 -1.
542 -11.
543 -111. Common Commands:
502 +=== 3.5.1 Common Commands ===
544 544  
545 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
504 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
546 546  
547 547  
548 -1.
549 -11.
550 -111. Sensor related commands:
507 +=== 3.5.2 Sensor related commands ===
551 551  
552 -==== Choose Device Type (RS485 or TTL) ====
509 +Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
553 553  
554 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
511 +[[image:image-20220602163333-5.png||height="263" width="1160"]]
555 555  
556 -* AT Command
513 +The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
557 557  
558 -**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
559 559  
560 -**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
516 +=== 3.5.3 Sensor related commands ===
561 561  
518 +==== ====
562 562  
563 -* Downlink Payload
520 +==== **RS485 Debug Command** ====
564 564  
565 -**0A aa**     à same as AT+MOD=aa
522 +This command is used to configure the RS485 devices; they won’t be used during sampling.
566 566  
524 +* **AT Command**
567 567  
526 +(% class="box infomessage" %)
527 +(((
528 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
529 +)))
568 568  
569 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
531 +m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
570 570  
571 -This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
533 +* **Downlink Payload**
572 572  
573 -* AT Command
574 -
575 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
576 -
577 -m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
578 -
579 -
580 -
581 -* Downlink Payload
582 -
583 583  Format: A8 MM NN XX XX XX XX YY
584 584  
585 585  Where:
... ... @@ -587,9 +587,12 @@
587 587  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
588 588  * NN: The length of RS485 command
589 589  * XX XX XX XX: RS485 command total NN bytes
590 -* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
542 +* YY: How many bytes will be uplink from the return of this RS485 command,
543 +** if YY=0, RS485-LN will execute the downlink command without uplink;
544 +** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
545 +** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
591 591  
592 -**Example 1:**
547 +**Example 1** ~-~-> Configure without ask for uplink (YY=0)
593 593  
594 594  To connect a Modbus Alarm with below commands.
595 595  
... ... @@ -599,59 +599,76 @@
599 599  
600 600  So if user want to use downlink command to control to RS485 Alarm, he can use:
601 601  
602 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
557 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
603 603  
604 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
559 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
605 605  
606 606  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
607 607  
608 608  
609 -**Example 2:**
564 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
610 610  
611 -Check TTL Sensor return:
566 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
612 612  
613 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
614 614  
569 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:
615 615  
571 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
616 616  
573 + [[image:1654159460680-153.png]]
617 617  
618 -==== Set Payload version ====
619 619  
576 +
577 +==== **Set Payload version** ====
578 +
620 620  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
621 621  
622 -* AT Command:
581 +* **AT Command:**
623 623  
624 -AT+PAYVER: Set PAYVER field = 1
583 +(% class="box infomessage" %)
584 +(((
585 +**AT+PAYVER: Set PAYVER field = 1**
586 +)))
625 625  
626 626  
627 -* Downlink Payload:
589 +* **Downlink Payload:**
628 628  
629 -0xAE 01   à Set PAYVER field =  0x01
591 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
630 630  
631 -0xAE 0F   à Set PAYVER field =  0x0F
593 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
632 632  
633 633  
634 -==== Set RS485 Sampling Commands ====
635 635  
597 +==== **Set RS485 Sampling Commands** ====
598 +
636 636  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
637 637  
638 -These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
601 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
639 639  
640 640  
641 -* AT Command:
604 +* **AT Command:**
642 642  
643 -AT+COMMANDx: Configure RS485 read command to sensor.
606 +(% class="box infomessage" %)
607 +(((
608 +**AT+COMMANDx: Configure RS485 read command to sensor.**
609 +)))
644 644  
645 -AT+DATACUTx: Configure how to handle return from RS485 devices.
611 +(% class="box infomessage" %)
612 +(((
613 +**AT+DATACUTx: Configure how to handle return from RS485 devices.**
614 +)))
646 646  
647 -AT+SEARCHx: Configure search command
616 +(% class="box infomessage" %)
617 +(((
618 +**AT+SEARCHx: Configure search command**
619 +)))
648 648  
649 649  
650 -* Downlink Payload:
622 +* **Downlink Payload:**
651 651  
652 -0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
624 +**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
653 653  
654 -Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
626 +(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
655 655  
656 656  Format: AF MM NN LL XX XX XX XX YY
657 657  
... ... @@ -658,23 +658,23 @@
658 658  Where:
659 659  
660 660  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
661 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
662 -* LL: The length of AT+COMMAND or AT+DATACUT command
633 +* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
634 +* LL:  The length of AT+COMMAND or AT+DATACUT command
663 663  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
664 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
636 +* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
665 665  
666 -Example:
638 +**Example:**
667 667  
668 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
640 +(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
669 669  
670 -**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
642 +(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
671 671  
672 -**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
644 +(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
673 673  
674 674  
675 -0xAB downlink command can be used for set AT+SEARCHx
647 +**0xAB** downlink command can be used for set AT+SEARCHx
676 676  
677 -Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
649 +**Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
678 678  
679 679  * AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
680 680  * AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
... ... @@ -682,145 +682,164 @@
682 682  **AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
683 683  
684 684  
685 -==== Fast command to handle MODBUS device ====
686 686  
658 +==== **Fast command to handle MODBUS device** ====
659 +
687 687  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
688 688  
689 689  This command is valid since v1.3 firmware version
690 690  
691 691  
692 -AT+MBFUN has only two value:
665 +**AT+MBFUN has only two value:**
693 693  
694 -* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
667 +* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
695 695  
696 696  AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
697 697  
698 -* AT+MBFUN=0: Disable Modbus fast reading.
671 +* **AT+MBFUN=0**: Disable Modbus fast reading.
699 699  
700 -Example:
673 +**Example:**
701 701  
702 702  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
703 703  * AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
704 704  * AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
705 705  
706 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
679 +[[image:1654133913295-597.png]]
707 707  
708 708  
709 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
682 +[[image:1654133954153-643.png]]
710 710  
711 711  
712 -* Downlink Commands:
685 +* **Downlink Commands:**
713 713  
714 -A9 aa -à Same as AT+MBFUN=aa
687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa
715 715  
716 716  
717 -==== RS485 command timeout ====
718 718  
691 +==== **RS485 command timeout** ====
692 +
719 719  Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
720 720  
721 721  Default value: 0, range:  0 ~~ 5 seconds
722 722  
723 723  
724 -* AT Command:
698 +* **AT Command:**
725 725  
726 -AT+CMDDLaa=hex(bb cc)
700 +(% class="box infomessage" %)
701 +(((
702 +**AT+CMDDLaa=hex(bb cc)**
703 +)))
727 727  
728 -Example:
705 +**Example:**
729 729  
730 730  **AT+CMDDL1=1000** to send the open time to 1000ms
731 731  
732 732  
733 -* Downlink Payload:
710 +* **Downlink Payload:**
734 734  
735 735  0x AA aa bb cc
736 736  
737 737  Same as: AT+CMDDLaa=hex(bb cc)
738 738  
739 - Example:
716 + **Example:**
740 740  
741 - 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
718 + **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
742 742  
743 743  
744 -==== [[Uplink>>path:#downlink_A8]] payload mode ====
745 745  
722 +==== **Uplink payload mode** ====
723 +
746 746  Define to use one uplink or multiple uplinks for the sampling.
747 747  
748 -The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
726 +The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
749 749  
750 -* AT Command:
728 +* **AT Command:**
751 751  
752 -AT+DATAUP=0
730 +(% class="box infomessage" %)
731 +(((
732 +**AT+DATAUP=0**
733 +)))
753 753  
754 -AT+DATAUP=1
735 +(% class="box infomessage" %)
736 +(((
737 +**AT+DATAUP=1**
738 +)))
755 755  
756 756  
757 -* Downlink Payload:
741 +* **Downlink Payload:**
758 758  
759 -0xAD 00   à Same as AT+DATAUP=0
743 +**0xAD 00**  **~-~->** Same as AT+DATAUP=0
760 760  
761 -0xAD 01   à Same as AT+DATAUP=1
745 +**0xAD 01**  **~-~->** Same as AT+DATAUP=1
762 762  
763 763  
764 -==== Manually trigger an Uplink ====
765 765  
749 +==== **Manually trigger an Uplink** ====
750 +
766 766  Ask device to send an uplink immediately.
767 767  
768 -* Downlink Payload:
753 +* **Downlink Payload:**
769 769  
770 -0x08 FF, RS485-BL will immediately send an uplink.
755 +**0x08 FF**, RS485-BL will immediately send an uplink.
771 771  
772 772  
773 -==== Clear RS485 Command ====
774 774  
759 +==== **Clear RS485 Command** ====
760 +
775 775  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
776 776  
777 777  
778 -* AT Command:
764 +* **AT Command:**
779 779  
780 -**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
766 +(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
781 781  
782 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
783 -
784 784  Example screen shot after clear all RS485 commands. 
785 785  
786 786  
787 -
788 788  The uplink screen shot is:
789 789  
790 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
773 +[[image:1654134704555-320.png]]
791 791  
792 792  
793 -* Downlink Payload:
776 +* **Downlink Payload:**
794 794  
795 -0x09 aa bb same as AT+CMDEAR=aa,bb
778 +**0x09 aa bb** same as AT+CMDEAR=aa,bb
796 796  
797 797  
798 -==== Set Serial Communication Parameters ====
799 799  
782 +==== **Set Serial Communication Parameters** ====
783 +
800 800  Set the Rs485 serial communication parameters:
801 801  
802 -* AT Command:
786 +* **AT Command:**
803 803  
804 804  Set Baud Rate:
805 805  
806 -AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
790 +(% class="box infomessage" %)
791 +(((
792 +**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
793 +)))
807 807  
795 +Set UART Parity
808 808  
809 -Set UART parity
797 +(% class="box infomessage" %)
798 +(((
799 +**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
800 +)))
810 810  
811 -AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
812 -
813 -
814 814  Set STOPBIT
815 815  
816 -AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
804 +(% class="box infomessage" %)
805 +(((
806 +**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
807 +)))
817 817  
818 818  
819 -* Downlink Payload:
810 +* **Downlink Payload:**
820 820  
821 -A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
812 +**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
822 822  
823 -Example:
814 +**Example:**
824 824  
825 825  * A7 01 00 60   same as AT+BAUDR=9600
826 826  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -830,287 +830,22 @@
830 830  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
831 831  
832 832  
833 -==== Control output power duration ====
834 834  
825 +==== **Control output power duration** ====
826 +
835 835  User can set the output power duration before each sampling.
836 836  
837 -* AT Command:
829 +* **AT Command:**
838 838  
839 -Example:
831 +**Example:**
840 840  
841 -AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
833 +**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
842 842  
843 -AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
835 +**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
844 844  
845 845  
846 -* LoRaWAN Downlink Command:
838 +* **LoRaWAN Downlink Command:**
847 847  
848 -07 01 aa bb  Same as AT+5VT=(aa bb)
840 +**07 01 aa bb**  Same as AT+5VT=(aa bb)
849 849  
850 -07 02 aa bb  Same as AT+3V3T=(aa bb)
851 -
852 -
853 -
854 -
855 -1.
856 -11. Buttons
857 -
858 -|**Button**|**Feature**
859 -|**RST**|Reboot RS485-BL
860 -
861 -1.
862 -11. +3V3 Output
863 -
864 -RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
865 -
866 -The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
867 -
868 -
869 -The +3V3 output time can be controlled by AT Command.
870 -
871 -**AT+3V3T=1000**
872 -
873 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
874 -
875 -
876 -By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
877 -
878 -
879 -1.
880 -11. +5V Output
881 -
882 -RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
883 -
884 -The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
885 -
886 -
887 -The 5V output time can be controlled by AT Command.
888 -
889 -**AT+5VT=1000**
890 -
891 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
892 -
893 -
894 -By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
895 -
896 -
897 -
898 -
899 -1.
900 -11. LEDs
901 -
902 -|**LEDs**|**Feature**
903 -|**LED1**|Blink when device transmit a packet.
904 -
905 -1.
906 -11. Switch Jumper
907 -
908 -|**Switch Jumper**|**Feature**
909 -|**SW1**|(((
910 -ISP position: Upgrade firmware via UART
911 -
912 -Flash position: Configure device, check running status.
913 -)))
914 -|**SW2**|(((
915 -5V position: set to compatible with 5v I/O.
916 -
917 -3.3v position: set to compatible with 3.3v I/O.,
918 -)))
919 -
920 -+3.3V: is always ON
921 -
922 -+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
923 -
924 -1. Case Study
925 -
926 -User can check this URL for some case studies.
927 -
928 -[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
929 -
930 -
931 -
932 -
933 -1. Use AT Command
934 -11. Access AT Command
935 -
936 -RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
937 -
938 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
939 -
940 -
941 -In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
942 -
943 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
944 -
945 -
946 -
947 -More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
948 -
949 -
950 -
951 -1.
952 -11. Common AT Command Sequence
953 -111. Multi-channel ABP mode (Use with SX1301/LG308)
954 -
955 -If device has not joined network yet:
956 -
957 -AT+FDR
958 -
959 -AT+NJM=0
960 -
961 -ATZ
962 -
963 -
964 -If device already joined network:
965 -
966 -AT+NJM=0
967 -
968 -ATZ
969 -
970 -1.
971 -11.
972 -111. Single-channel ABP mode (Use with LG01/LG02)
973 -
974 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
975 -
976 -AT+NJM=0 Set to ABP mode
977 -
978 -AT+ADR=0 Set the Adaptive Data Rate Off
979 -
980 -AT+DR=5  Set Data Rate
981 -
982 -AT+TDC=60000  Set transmit interval to 60 seconds
983 -
984 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
985 -
986 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
987 -
988 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
989 -
990 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
991 -
992 -ATZ          Reset MCU
993 -
994 -**Note:**
995 -
996 -1. Make sure the device is set to ABP mode in the IoT Server.
997 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
998 -1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
999 -1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1000 -
1001 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1002 -
1003 -
1004 -1. FAQ
1005 -11. How to upgrade the image?
1006 -
1007 -The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1008 -
1009 -* Support new features
1010 -* For bug fix
1011 -* Change LoRaWAN bands.
1012 -
1013 -Below shows the hardware connection for how to upload an image to RS485-BL:
1014 -
1015 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1016 -
1017 -**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1018 -
1019 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1020 -
1021 -**Step3: **Open flashloader; choose the correct COM port to update.
1022 -
1023 -
1024 -|(((
1025 -HOLD PRO then press the RST button, SYS will be ON, then click next
1026 -)))
1027 -
1028 -|(((
1029 -Board detected
1030 -)))
1031 -
1032 -|(((
1033 -
1034 -)))
1035 -
1036 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1037 -
1038 -
1039 -
1040 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1041 -
1042 -
1043 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1044 -
1045 -
1046 -1.
1047 -11. How to change the LoRa Frequency Bands/Region?
1048 -
1049 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1050 -
1051 -
1052 -
1053 -1.
1054 -11. How many RS485-Slave can RS485-BL connects?
1055 -
1056 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
1057 -
1058 -
1059 -
1060 -
1061 -1. Trouble Shooting     
1062 -11. Downlink doesn’t work, how to solve it?
1063 -
1064 -Please see this link for debug:
1065 -
1066 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1067 -
1068 -
1069 -
1070 -1.
1071 -11. Why I can’t join TTN V3 in US915 /AU915 bands?
1072 -
1073 -It might about the channels mapping. Please see for detail.
1074 -
1075 -[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1076 -
1077 -
1078 -
1079 -1. Order Info
1080 -
1081 -**Part Number: RS485-BL-XXX**
1082 -
1083 -**XXX:**
1084 -
1085 -* **EU433**: frequency bands EU433
1086 -* **EU868**: frequency bands EU868
1087 -* **KR920**: frequency bands KR920
1088 -* **CN470**: frequency bands CN470
1089 -* **AS923**: frequency bands AS923
1090 -* **AU915**: frequency bands AU915
1091 -* **US915**: frequency bands US915
1092 -* **IN865**: frequency bands IN865
1093 -* **RU864**: frequency bands RU864
1094 -* **KZ865: **frequency bands KZ865
1095 -
1096 -1. Packing Info
1097 -
1098 -**Package Includes**:
1099 -
1100 -* RS485-BL x 1
1101 -* Stick Antenna for LoRa RF part x 1
1102 -* Program cable x 1
1103 -
1104 -**Dimension and weight**:
1105 -
1106 -* Device Size: 13.5 x 7 x 3 cm
1107 -* Device Weight: 105g
1108 -* Package Size / pcs : 14.5 x 8 x 5 cm
1109 -* Weight / pcs : 170g
1110 -
1111 -1. Support
1112 -
1113 -* 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.
1114 -* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1115 -
1116 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
842 +**07 02 aa bb**  Same as AT+3V3T=(aa bb)
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