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Summary

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Content
... ... @@ -7,12 +7,15 @@
7 7  **RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
9 9  
10 +
10 10  **Table of Contents:**
11 11  
13 +{{toc/}}
12 12  
13 13  
14 14  
15 15  
18 +
16 16  = 1.Introduction =
17 17  
18 18  == 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
... ... @@ -22,19 +22,19 @@
22 22  )))
23 23  
24 24  (((
25 -The Dragino RS485-BL is a **RS485 / UART to LoRaWAN Converter** for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
28 +The Dragino RS485-BL is a (% style="color:blue" %)**RS485 / UART to LoRaWAN Converter**(%%) for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
26 26  )))
27 27  
28 28  (((
29 -RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
32 +RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides (% style="color:blue" %)**a 3.3v output**(%%) and** (% style="color:blue" %)a 5v output(%%)** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
30 30  )))
31 31  
32 32  (((
33 -RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
36 +RS485-BL is IP67 (% style="color:blue" %)**waterproof**(%%) and powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use for several years.
34 34  )))
35 35  
36 36  (((
37 -RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
40 +RS485-BL runs standard (% style="color:blue" %)**LoRaWAN 1.0.3 in Class A**(%%). It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
38 38  )))
39 39  
40 40  (((
... ... @@ -51,8 +51,11 @@
51 51  
52 52  [[image:1652953304999-717.png||height="424" width="733"]]
53 53  
57 +
58 +
54 54  == 1.2 Specifications ==
55 55  
61 +
56 56  **Hardware System:**
57 57  
58 58  * STM32L072CZT6 MCU
... ... @@ -59,8 +59,6 @@
59 59  * SX1276/78 Wireless Chip 
60 60  * Power Consumption (exclude RS485 device):
61 61  ** Idle: 6uA@3.3v
62 -
63 -*
64 64  ** 20dB Transmit: 130mA@3.3v
65 65  
66 66  **Interface for Model:**
... ... @@ -114,9 +114,12 @@
114 114  
115 115  [[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
116 116  
121 +
117 117  == 1.6 Hardware Change log ==
118 118  
119 119  (((
125 +
126 +
120 120  v1.4
121 121  )))
122 122  
... ... @@ -140,6 +140,8 @@
140 140  
141 141  (((
142 142  Release version ​​​​​
150 +
151 +
143 143  )))
144 144  
145 145  = 2. Pin mapping and Power ON Device =
... ... @@ -153,6 +153,7 @@
153 153  
154 154  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
155 155  
165 +
156 156  = 3. Operation Mode =
157 157  
158 158  == 3.1 How it works? ==
... ... @@ -159,6 +159,8 @@
159 159  
160 160  (((
161 161  The RS485-BL is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-BL. It will auto join the network via OTAA.
172 +
173 +
162 162  )))
163 163  
164 164  == 3.2 Example to join LoRaWAN network ==
... ... @@ -194,8 +194,6 @@
194 194  )))
195 195  
196 196  
197 -
198 -
199 199  [[image:image-20220519174512-1.png]]
200 200  
201 201  [[image:image-20220519174512-2.png||height="328" width="731"]]
... ... @@ -219,10 +219,13 @@
219 219  
220 220  [[image:1652953568895-172.png||height="232" width="724"]]
221 221  
232 +
222 222  == 3.3 Configure Commands to read data ==
223 223  
224 224  (((
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.
236 +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.
237 +
238 +
226 226  )))
227 227  
228 228  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
... ... @@ -323,8 +323,9 @@
323 323  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
324 324  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
325 325  
326 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
339 +Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]].
327 327  
341 +
328 328  === 3.3.3 Configure read commands for each sampling ===
329 329  
330 330  (((
... ... @@ -422,7 +422,7 @@
422 422  
423 423  **Examples:**
424 424  
425 -1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
439 +1）For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
426 426  
427 427  If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
428 428  
... ... @@ -430,7 +430,7 @@
430 430  
431 431  [[image:1653271044481-711.png]]
432 432  
433 -1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
447 +2）For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
434 434  
435 435  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
436 436  
... ... @@ -449,97 +449,143 @@
449 449  * **c: define the position for valid value.  **
450 450  )))
451 451  
452 -Examples:
466 +**Examples:**
453 453  
454 454  * Grab bytes:
455 455  
456 456  [[image:1653271581490-837.png||height="313" width="722"]]
457 457  
472 +
458 458  * Grab a section.
459 459  
460 460  [[image:1653271648378-342.png||height="326" width="720"]]
461 461  
477 +
462 462  * Grab different sections.
463 463  
464 464  [[image:1653271657255-576.png||height="305" width="730"]]
465 465  
482 +(((
466 466  (% style="color:red" %)**Note:**
484 +)))
467 467  
486 +(((
468 468  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.
488 +)))
469 469  
490 +(((
470 470  **Example:**
492 +)))
471 471  
494 +(((
472 472  (% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
496 +)))
473 473  
498 +(((
474 474  (% style="color:red" %)AT+SEARCH1=1,1E 56 34
500 +)))
475 475  
502 +(((
476 476  (% style="color:red" %)AT+DATACUT1=0,2,1~~5
504 +)))
477 477  
506 +(((
478 478  (% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
508 +)))
479 479  
510 +(((
480 480  (% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
512 +)))
481 481  
514 +(((
482 482  (% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
516 +)))
483 483  
484 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
518 +[[image:1653271763403-806.png]]
485 485  
486 486  
521 +=== 3.3.4 Compose the uplink payload ===
487 487  
488 -
489 -1.
490 -11.
491 -111. Compose the uplink payload
492 -
523 +(((
493 493  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.**
525 +)))
494 494  
527 +(((
528 +(% style="color:#037691" %)**Examples: AT+DATAUP=0**
529 +)))
495 495  
496 -**Examples: AT+DATAUP=0**
531 +(((
532 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
533 +)))
497 497  
498 -Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
499 -
535 +(((
500 500  Final Payload is
537 +)))
501 501  
502 -Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
539 +(((
540 +(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
541 +)))
503 503  
543 +(((
504 504  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
545 +)))
505 505  
506 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
547 +[[image:1653272787040-634.png||height="515" width="719"]]
507 507  
508 508  
509 509  
510 -**Examples: AT+DATAUP=1**
551 +(((
552 +(% style="color:#037691" %)**Examples: AT+DATAUP=1**
511 511  
512 -Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
554 +
555 +)))
513 513  
557 +(((
558 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
559 +)))
560 +
561 +(((
514 514  Final Payload is
563 +)))
515 515  
516 -Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
565 +(((
566 +(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
567 +)))
517 517  
518 -1. Battery Info (2 bytes): Battery voltage
519 -1. PAYVER (1 byte): Defined by AT+PAYVER
520 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
521 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
522 -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
569 +1. (((
570 +Battery Info (2 bytes): Battery voltage
571 +)))
572 +1. (((
573 +PAYVER (1 byte): Defined by AT+PAYVER
574 +)))
575 +1. (((
576 +PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
577 +)))
578 +1. (((
579 +PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
580 +)))
581 +1. (((
582 +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
583 +)))
523 523  
524 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
585 +[[image:1653272817147-600.png||height="437" width="717"]]
525 525  
526 -
527 527  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
528 528  
529 -DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
530 530  
531 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
590 +DATA1=RETURN1 Valid Value = (% style="background-color:#4f81bd; color:white" %) 20 20 0a 33 90 41
532 532  
533 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
592 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= (% style="background-color:#4f81bd; color:white" %)02 aa 05 81 0a 20
534 534  
594 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 =(% style="background-color:#4f81bd; color:white" %) 20 20 20 2d 30
535 535  
536 536  
537 537  Below are the uplink payloads:
538 538  
539 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
599 +[[image:1653272901032-107.png]]
540 540  
541 541  
542 -Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
602 +(% style="color:red" %)Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
543 543  
544 544   ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
545 545  
... ... @@ -551,113 +551,154 @@
551 551  
552 552  
553 553  
554 -1.
555 -11.
556 -111. Uplink on demand
614 +=== 3.3.5 Uplink on demand ===
557 557  
616 +(((
558 558  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.
618 +)))
559 559  
620 +(((
560 560  Downlink control command:
622 +)))
561 561  
562 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
624 +(((
625 +**0x08 command**: Poll an uplink with current command set in RS485-BL.
626 +)))
563 563  
564 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
628 +(((
629 +**0xA8 command**: Send a command to RS485-BL and uplink the output from sensors.
565 565  
631 +
632 +)))
566 566  
634 +=== 3.3.6 Uplink on Interrupt ===
567 567  
568 -1.
569 -11.
570 -111. Uplink on Interrupt
636 +Put the interrupt sensor between 3.3v_out and GPIO ext.
571 571  
572 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
638 +[[image:1653273818896-432.png]]
573 573  
640 +
641 +(((
574 574  AT+INTMOD=0  Disable Interrupt
643 +)))
575 575  
645 +(((
576 576  AT+INTMOD=1  Interrupt trigger by rising or falling edge.
647 +)))
577 577  
649 +(((
578 578  AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
651 +)))
579 579  
653 +(((
580 580  AT+INTMOD=3  Interrupt trigger by rising edge.
581 581  
656 +
657 +)))
582 582  
583 -1.
584 -11. Uplink Payload
659 +== 3.4 Uplink Payload ==
585 585  
586 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
587 -|Value|(((
661 +(% border="1" style="background-color:#4f81bd; color:white; width:850px" %)
662 +|**Size(bytes)**|(% style="width:130px" %)**2**|(% style="width:93px" %)**1**|(% style="width:509px" %)**Length depends on the return from the commands**
663 +|Value|(% style="width:130px" %)(((
664 +(((
588 588  Battery(mV)
666 +)))
589 589  
668 +(((
590 590  &
670 +)))
591 591  
672 +(((
592 592  Interrupt _Flag
593 -)))|(((
674 +)))
675 +)))|(% style="width:93px" %)(((
594 594  PAYLOAD_VER
595 595  
596 596  
597 -)))|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.
679 +)))|(% 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.
598 598  
599 599  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
600 600  
683 +(((
684 +{{{function Decoder(bytes, port) {}}}
685 +)))
601 601  
602 -function Decoder(bytes, port) {
687 +(((
688 +{{{//Payload Formats of RS485-BL Deceive}}}
689 +)))
603 603  
604 -~/~/Payload Formats of RS485-BL Deceive
691 +(((
692 +{{{return {}}}
693 +)))
605 605  
606 -return {
695 +(((
696 +{{{ //Battery,units:V}}}
697 +)))
607 607  
608 - ~/~/Battery,units:V
699 +(((
700 +{{{ BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,}}}
701 +)))
609 609  
610 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
703 +(((
704 +{{{ //GPIO_EXTI }}}
705 +)))
611 611  
612 - ~/~/GPIO_EXTI 
707 +(((
708 +{{{ EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",}}}
709 +)))
613 613  
614 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
711 +(((
712 +{{{ //payload of version}}}
713 +)))
615 615  
616 - ~/~/payload of version
715 +(((
716 +{{{ Pay_ver:bytes[2],}}}
717 +)))
617 617  
618 - Pay_ver:bytes[2],
719 +(((
720 +{{{ }; }}}
721 +)))
619 619  
620 - };
723 +(((
724 +}
621 621  
622 - }
726 +
727 +)))
623 623  
729 +(((
730 +TTN V3 uplink screen shot.
731 +)))
624 624  
733 +[[image:1653274001211-372.png||height="192" width="732"]]
625 625  
626 626  
736 +== 3.5 Configure RS485-BL via AT or Downlink ==
627 627  
738 +User can configure RS485-BL via AT Commands or LoRaWAN Downlink Commands
628 628  
740 +There are two kinds of Commands:
629 629  
630 -TTN V3 uplink screen shot.
742 +* (% 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]]
631 631  
632 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
744 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-BL.  User can see these commands below:
633 633  
634 -1.
635 -11. Configure RS485-BL via AT or Downlink
636 636  
637 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
747 +=== 3.5.1 Common Commands: ===
638 638  
639 -There are two kinds of Commands:
749 +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]]
640 640  
641 -* **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
642 642  
643 -* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
752 +=== 3.5.2 Sensor related commands: ===
644 644  
645 -1.
646 -11.
647 -111. Common Commands:
754 +(% class="wikigeneratedid" %)
755 +==== ====
648 648  
649 -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]]
757 +==== **Choose Device Type (RS485 or TTL)** ====
650 650  
651 -
652 -1.
653 -11.
654 -111. Sensor related commands:
655 -
656 -==== Choose Device Type (RS485 or TTL) ====
657 -
658 658  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
659 659  
660 -* AT Command
761 +* **AT Command**
661 661  
662 662  **AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
663 663  
... ... @@ -664,17 +664,17 @@
664 664  **AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
665 665  
666 666  
667 -* Downlink Payload
768 +* **Downlink Payload**
668 668  
669 -**0A aa**     à same as AT+MOD=aa
770 +**0A aa**  ~-~->  same as AT+MOD=aa
670 670  
671 671  
672 672  
673 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
774 +==== **RS485 Debug Command (AT+CFGDEV)** ====
674 674  
675 675  This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
676 676  
677 -* AT Command
778 +* **AT Command**
678 678  
679 679  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
680 680  
... ... @@ -681,9 +681,8 @@
681 681  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
682 682  
683 683  
785 +* **Downlink Payload**
684 684  
685 -* Downlink Payload
686 -
687 687  Format: A8 MM NN XX XX XX XX YY
688 688  
689 689  Where:
... ... @@ -693,6 +693,7 @@
693 693  * XX XX XX XX: RS485 command total NN bytes
694 694  * 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
695 695  
796 +
696 696  **Example 1:**
697 697  
698 698  To connect a Modbus Alarm with below commands.
... ... @@ -956,13 +956,13 @@
956 956  
957 957  
958 958  
959 -1.
1060 +1.
960 960  11. Buttons
961 961  
962 962  |**Button**|**Feature**
963 963  |**RST**|Reboot RS485-BL
964 964  
965 -1.
1066 +1.
966 966  11. +3V3 Output
967 967  
968 968  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -980,7 +980,7 @@
980 980  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
981 981  
982 982  
983 -1.
1084 +1.
984 984  11. +5V Output
985 985  
986 986  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -1000,13 +1000,13 @@
1000 1000  
1001 1001  
1002 1002  
1003 -1.
1104 +1.
1004 1004  11. LEDs
1005 1005  
1006 1006  |**LEDs**|**Feature**
1007 1007  |**LED1**|Blink when device transmit a packet.
1008 1008  
1009 -1.
1110 +1.
1010 1010  11. Switch Jumper
1011 1011  
1012 1012  |**Switch Jumper**|**Feature**
... ... @@ -1052,7 +1052,7 @@
1052 1052  
1053 1053  
1054 1054  
1055 -1.
1156 +1.
1056 1056  11. Common AT Command Sequence
1057 1057  111. Multi-channel ABP mode (Use with SX1301/LG308)
1058 1058  
... ... @@ -1071,8 +1071,8 @@
1071 1071  
1072 1072  ATZ
1073 1073  
1074 -1.
1075 -11.
1175 +1.
1176 +11.
1076 1076  111. Single-channel ABP mode (Use with LG01/LG02)
1077 1077  
1078 1078  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1147,7 +1147,7 @@
1147 1147  [[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]]
1148 1148  
1149 1149  
1150 -1.
1251 +1.
1151 1151  11. How to change the LoRa Frequency Bands/Region?
1152 1152  
1153 1153  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1154,7 +1154,7 @@
1154 1154  
1155 1155  
1156 1156  
1157 -1.
1258 +1.
1158 1158  11. How many RS485-Slave can RS485-BL connects?
1159 1159  
1160 1160  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]].
... ... @@ -1171,7 +1171,7 @@
1171 1171  
1172 1172  
1173 1173  
1174 -1.
1275 +1.
1175 1175  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1176 1176  
1177 1177  It might about the channels mapping. Please see for detail.
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