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edited by Xiaoling
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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 ==
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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  (((
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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:**
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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 =
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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? ==
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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 ==
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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"]]
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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 ===
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303 303  )))
304 304  )))
305 305  
319 +
306 306  === 3.3.2 Configure sensors ===
307 307  
308 308  (((
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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]].
340 +Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]].
327 327  
342 +
328 328  === 3.3.3 Configure read commands for each sampling ===
329 329  
330 330  (((
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609 609  
610 610  [[image:1653273818896-432.png]]
611 611  
627 +(((
612 612  AT+INTMOD=0  Disable Interrupt
629 +)))
613 613  
631 +(((
614 614  AT+INTMOD=1  Interrupt trigger by rising or falling edge.
633 +)))
615 615  
635 +(((
616 616  AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
637 +)))
617 617  
639 +(((
618 618  AT+INTMOD=3  Interrupt trigger by rising edge.
641 +)))
619 619  
620 620  == 3.4 Uplink Payload ==
621 621  
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641 641  
642 642  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
643 643  
644 -
667 +(((
645 645  function Decoder(bytes, port) {
669 +)))
646 646  
671 +(((
647 647  ~/~/Payload Formats of RS485-BL Deceive
673 +)))
648 648  
675 +(((
649 649  return {
677 +)))
650 650  
679 +(((
651 651   ~/~/Battery,units:V
681 +)))
652 652  
683 +(((
653 653   BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
685 +)))
654 654  
687 +(((
655 655   ~/~/GPIO_EXTI 
689 +)))
656 656  
691 +(((
657 657   EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
693 +)))
658 658  
695 +(((
659 659   ~/~/payload of version
697 +)))
660 660  
699 +(((
661 661   Pay_ver:bytes[2],
701 +)))
662 662  
703 +(((
663 663   };
705 +)))
664 664  
707 +(((
665 665   }
709 +)))
666 666  
667 -
668 -
669 -
670 -
671 -
672 -
711 +(((
673 673  TTN V3 uplink screen shot.
713 +)))
674 674  
675 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
715 +[[image:1653274001211-372.png||height="192" width="732"]]
676 676  
677 -1.
678 -11. Configure RS485-BL via AT or Downlink
717 +== 3.5 Configure RS485-BL via AT or Downlink ==
679 679  
680 680  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
681 681  
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685 685  
686 686  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
687 687  
688 -1.
689 -11.
727 +1.
728 +11.
690 690  111. Common Commands:
691 691  
692 692  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]]
693 693  
694 694  
695 -1.
696 -11.
734 +1.
735 +11.
697 697  111. Sensor related commands:
698 698  
699 699  ==== Choose Device Type (RS485 or TTL) ====
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999 999  
1000 1000  
1001 1001  
1002 -1.
1041 +1.
1003 1003  11. Buttons
1004 1004  
1005 1005  |**Button**|**Feature**
1006 1006  |**RST**|Reboot RS485-BL
1007 1007  
1008 -1.
1047 +1.
1009 1009  11. +3V3 Output
1010 1010  
1011 1011  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
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1023 1023  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1024 1024  
1025 1025  
1026 -1.
1065 +1.
1027 1027  11. +5V Output
1028 1028  
1029 1029  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
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1043 1043  
1044 1044  
1045 1045  
1046 -1.
1085 +1.
1047 1047  11. LEDs
1048 1048  
1049 1049  |**LEDs**|**Feature**
1050 1050  |**LED1**|Blink when device transmit a packet.
1051 1051  
1052 -1.
1091 +1.
1053 1053  11. Switch Jumper
1054 1054  
1055 1055  |**Switch Jumper**|**Feature**
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1095 1095  
1096 1096  
1097 1097  
1098 -1.
1137 +1.
1099 1099  11. Common AT Command Sequence
1100 1100  111. Multi-channel ABP mode (Use with SX1301/LG308)
1101 1101  
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1114 1114  
1115 1115  ATZ
1116 1116  
1117 -1.
1118 -11.
1156 +1.
1157 +11.
1119 1119  111. Single-channel ABP mode (Use with LG01/LG02)
1120 1120  
1121 1121  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
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1190 1190  [[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]]
1191 1191  
1192 1192  
1193 -1.
1232 +1.
1194 1194  11. How to change the LoRa Frequency Bands/Region?
1195 1195  
1196 1196  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
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1197 1197  
1198 1198  
1199 1199  
1200 -1.
1239 +1.
1201 1201  11. How many RS485-Slave can RS485-BL connects?
1202 1202  
1203 1203  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]].
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1214 1214  
1215 1215  
1216 1216  
1217 -1.
1256 +1.
1218 1218  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1219 1219  
1220 1220  It might about the channels mapping. Please see for detail.
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