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Last modified by Xiaoling on 2025/04/23 15:57
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edited by Xiaoling
on 2022/06/01 18:05
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To version 28.4
edited by Xiaoling
on 2022/05/23 10:46
Change comment: There is no comment for this version

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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 ==
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25 25  )))
26 26  
27 27  (((
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.
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.
29 29  )))
30 30  
31 31  (((
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.
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.
33 33  )))
34 34  
35 35  (((
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.
33 +RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
37 37  )))
38 38  
39 39  (((
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.
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.
41 41  )))
42 42  
43 43  (((
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54 54  
55 55  [[image:1652953304999-717.png||height="424" width="733"]]
56 56  
57 -
58 -
59 59  == 1.2 Specifications ==
60 60  
61 61  **Hardware System:**
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95 95  * 127 dB Dynamic Range RSSI.
96 96  * Automatic RF Sense and CAD with ultra-fast AFC. ​​​
97 97  
98 -
99 99  == 1.3 Features ==
100 100  
101 101  * LoRaWAN Class A & Class C protocol (default Class A)
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107 107  * Support Modbus protocol
108 108  * Support Interrupt uplink
109 109  
110 -
111 111  == 1.4 Applications ==
112 112  
113 113  * Smart Buildings & Home Automation
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117 117  * Smart Cities
118 118  * Smart Factory
119 119  
120 -
121 121  == 1.5 Firmware Change log ==
122 122  
123 123  [[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);"]]
124 124  
125 -
126 126  == 1.6 Hardware Change log ==
127 127  
128 128  (((
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149 149  
150 150  (((
151 151  Release version ​​​​​
152 -
153 -
154 154  )))
155 155  
156 156  = 2. Pin mapping and Power ON Device =
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164 164  
165 165  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
166 166  
167 -
168 168  = 3. Operation Mode =
169 169  
170 170  == 3.1 How it works? ==
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171 171  
172 172  (((
173 173  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 -
176 176  )))
177 177  
178 178  == 3.2 Example to join LoRaWAN network ==
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236 236  == 3.3 Configure Commands to read data ==
237 237  
238 238  (((
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 -
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.
242 242  )))
243 243  
244 244  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
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665 665  
666 666  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
667 667  
668 -(((
652 +
669 669  function Decoder(bytes, port) {
670 -)))
671 671  
672 -(((
673 673  ~/~/Payload Formats of RS485-BL Deceive
674 -)))
675 675  
676 -(((
677 677  return {
678 -)))
679 679  
680 -(((
681 681   ~/~/Battery,units:V
682 -)))
683 683  
684 -(((
685 685   BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
686 -)))
687 687  
688 -(((
689 689   ~/~/GPIO_EXTI 
690 -)))
691 691  
692 -(((
693 693   EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
694 -)))
695 695  
696 -(((
697 697   ~/~/payload of version
698 -)))
699 699  
700 -(((
701 701   Pay_ver:bytes[2],
702 -)))
703 703  
704 -(((
705 705   };
706 -)))
707 707  
708 -(((
709 709   }
710 -)))
711 711  
712 -(((
675 +
676 +
677 +
678 +
679 +
680 +
713 713  TTN V3 uplink screen shot.
714 -)))
715 715  
716 -[[image:1653274001211-372.png||height="192" width="732"]]
683 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
717 717  
718 -== 3.5 Configure RS485-BL via AT or Downlink ==
685 +1.
686 +11. Configure RS485-BL via AT or Downlink
719 719  
720 720  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
721 721  
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