Skip to Content
Last modified by Xiaoling on 2025/04/23 15:57
From version 23.2
edited by Xiaoling
on 2022/05/23 10:09
Change comment: There is no comment for this version
To version 29.15
edited by Xiaoling
on 2022/06/01 18:05
Change comment: There is no comment for this version

Summary

Details

Page properties
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  (((
... ... @@ -51,6 +51,8 @@
51 51  
52 52  [[image:1652953304999-717.png||height="424" width="733"]]
53 53  
57 +
58 +
54 54  == 1.2 Specifications ==
55 55  
56 56  **Hardware System:**
... ... @@ -60,7 +60,7 @@
60 60  * Power Consumption (exclude RS485 device):
61 61  ** Idle: 6uA@3.3v
62 62  
63 -*
68 +*
64 64  ** 20dB Transmit: 130mA@3.3v
65 65  
66 66  **Interface for Model:**
... ... @@ -90,6 +90,7 @@
90 90  * 127 dB Dynamic Range RSSI.
91 91  * Automatic RF Sense and CAD with ultra-fast AFC. ​​​
92 92  
98 +
93 93  == 1.3 Features ==
94 94  
95 95  * LoRaWAN Class A & Class C protocol (default Class A)
... ... @@ -101,6 +101,7 @@
101 101  * Support Modbus protocol
102 102  * Support Interrupt uplink
103 103  
110 +
104 104  == 1.4 Applications ==
105 105  
106 106  * Smart Buildings & Home Automation
... ... @@ -110,10 +110,12 @@
110 110  * Smart Cities
111 111  * Smart Factory
112 112  
120 +
113 113  == 1.5 Firmware Change log ==
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  
125 +
117 117  == 1.6 Hardware Change log ==
118 118  
119 119  (((
... ... @@ -140,6 +140,8 @@
140 140  
141 141  (((
142 142  Release version ​​​​​
152 +
153 +
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  
167 +
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.
174 +
175 +
162 162  )))
163 163  
164 164  == 3.2 Example to join LoRaWAN network ==
... ... @@ -222,7 +222,9 @@
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.
239 +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.
240 +
241 +
226 226  )))
227 227  
228 228  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
... ... @@ -463,84 +463,120 @@
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  
520 +=== 3.3.4 Compose the uplink payload ===
486 486  
487 -
488 -
489 -1.
490 -11.
491 -111. Compose the uplink payload
492 -
522 +(((
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.**
524 +)))
494 494  
526 +(((
527 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
528 +)))
495 495  
496 -**Examples: AT+DATAUP=0**
530 +(((
531 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
532 +)))
497 497  
498 -Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
499 -
534 +(((
500 500  Final Payload is
536 +)))
501 501  
502 -Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
538 +(((
539 +(% style="color:#4f81bd" %)Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
540 +)))
503 503  
542 +(((
504 504  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
544 +)))
505 505  
506 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
546 +[[image:1653272787040-634.png||height="515" width="719"]]
507 507  
548 +(((
549 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
550 +)))
508 508  
552 +(((
553 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
554 +)))
509 509  
510 -**Examples: AT+DATAUP=1**
511 -
512 -Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
513 -
556 +(((
514 514  Final Payload is
558 +)))
515 515  
516 -Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
560 +(((
561 +(% style="color:#4f81bd" %)Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
562 +)))
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
564 +1. (((
565 +Battery Info (2 bytes): Battery voltage
566 +)))
567 +1. (((
568 +PAYVER (1 byte): Defined by AT+PAYVER
569 +)))
570 +1. (((
571 +PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
572 +)))
573 +1. (((
574 +PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
575 +)))
576 +1. (((
577 +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
578 +)))
523 523  
524 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
580 +[[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
584 +DATA1=RETURN1 Valid Value = (% style="background-color:#4f81bd; color:white" %) 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
586 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= (% style="background-color:#4f81bd; color:white" %)02 aa 05 81 0a 20
532 532  
533 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
588 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 =(% style="background-color:#4f81bd; color:white" %) 20 20 20 2d 30
534 534  
535 -
536 -
537 537  Below are the uplink payloads:
538 538  
539 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
592 +[[image:1653272901032-107.png]]
540 540  
594 +(% style="color:red" %)Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
541 541  
542 -Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
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  
546 546   * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
... ... @@ -549,90 +549,121 @@
549 549  
550 550   ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
551 551  
604 +=== 3.3.5 Uplink on demand ===
552 552  
553 -
554 -1.
555 -11.
556 -111. Uplink on demand
557 -
606 +(((
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.
608 +)))
559 559  
610 +(((
560 560  Downlink control command:
612 +)))
561 561  
562 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
614 +(((
615 +**0x08 command**: Poll an uplink with current command set in RS485-BL.
616 +)))
563 563  
564 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
618 +(((
619 +**0xA8 command**: Send a command to RS485-BL and uplink the output from sensors.
620 +)))
565 565  
622 +=== 3.3.6 Uplink on Interrupt ===
566 566  
624 +Put the interrupt sensor between 3.3v_out and GPIO ext.
567 567  
568 -1.
569 -11.
570 -111. Uplink on Interrupt
626 +[[image:1653273818896-432.png]]
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]]
573 -
628 +(((
574 574  AT+INTMOD=0  Disable Interrupt
630 +)))
575 575  
632 +(((
576 576  AT+INTMOD=1  Interrupt trigger by rising or falling edge.
634 +)))
577 577  
636 +(((
578 578  AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
638 +)))
579 579  
640 +(((
580 580  AT+INTMOD=3  Interrupt trigger by rising edge.
642 +)))
581 581  
644 +== 3.4 Uplink Payload ==
582 582  
583 -1.
584 -11. Uplink Payload
585 -
586 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
587 -|Value|(((
646 +(% border="1" style="background-color:#4f81bd; color:white; width:850px" %)
647 +|**Size(bytes)**|(% style="width:130px" %)**2**|(% style="width:93px" %)**1**|(% style="width:509px" %)**Length depends on the return from the commands**
648 +|Value|(% style="width:130px" %)(((
649 +(((
588 588  Battery(mV)
651 +)))
589 589  
653 +(((
590 590  &
655 +)))
591 591  
657 +(((
592 592  Interrupt _Flag
593 -)))|(((
659 +)))
660 +)))|(% 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.
664 +)))|(% 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  
601 -
668 +(((
602 602  function Decoder(bytes, port) {
670 +)))
603 603  
672 +(((
604 604  ~/~/Payload Formats of RS485-BL Deceive
674 +)))
605 605  
676 +(((
606 606  return {
678 +)))
607 607  
680 +(((
608 608   ~/~/Battery,units:V
682 +)))
609 609  
684 +(((
610 610   BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
686 +)))
611 611  
688 +(((
612 612   ~/~/GPIO_EXTI 
690 +)))
613 613  
692 +(((
614 614   EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
694 +)))
615 615  
696 +(((
616 616   ~/~/payload of version
698 +)))
617 617  
700 +(((
618 618   Pay_ver:bytes[2],
702 +)))
619 619  
704 +(((
620 620   };
706 +)))
621 621  
708 +(((
622 622   }
710 +)))
623 623  
624 -
625 -
626 -
627 -
628 -
629 -
712 +(((
630 630  TTN V3 uplink screen shot.
714 +)))
631 631  
632 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
716 +[[image:1653274001211-372.png||height="192" width="732"]]
633 633  
634 -1.
635 -11. Configure RS485-BL via AT or Downlink
718 +== 3.5 Configure RS485-BL via AT or Downlink ==
636 636  
637 637  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
638 638  
... ... @@ -642,15 +642,15 @@
642 642  
643 643  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
644 644  
645 -1.
646 -11.
728 +1.
729 +11.
647 647  111. Common Commands:
648 648  
649 649  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]]
650 650  
651 651  
652 -1.
653 -11.
735 +1.
736 +11.
654 654  111. Sensor related commands:
655 655  
656 656  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -956,13 +956,13 @@
956 956  
957 957  
958 958  
959 -1.
1042 +1.
960 960  11. Buttons
961 961  
962 962  |**Button**|**Feature**
963 963  |**RST**|Reboot RS485-BL
964 964  
965 -1.
1048 +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.
1066 +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.
1086 +1.
1004 1004  11. LEDs
1005 1005  
1006 1006  |**LEDs**|**Feature**
1007 1007  |**LED1**|Blink when device transmit a packet.
1008 1008  
1009 -1.
1092 +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.
1138 +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.
1157 +1.
1158 +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.
1233 +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.
1240 +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.
1257 +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.
1653271763403-806.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +27.7 KB
Content
1653272787040-634.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +294.0 KB
Content
1653272817147-600.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +143.3 KB
Content
1653272901032-107.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +197.8 KB
Content
1653273818896-432.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +31.6 KB
Content
1653274001211-372.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +91.4 KB
Content