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Last modified by Xiaoling on 2025/04/23 15:57
From version 29.14
edited by Xiaoling
on 2022/06/01 18:02
Change comment: There is no comment for this version
To version 29.4
edited by Xiaoling
on 2022/06/01 17:59
Change comment: There is no comment for this version

Summary

Details

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Content
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10 10  
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
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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 -
100 100  == 1.3 Features ==
101 101  
102 102  * LoRaWAN Class A & Class C protocol (default Class A)
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108 108  * Support Modbus protocol
109 109  * Support Interrupt uplink
110 110  
111 -
112 -
113 113  == 1.4 Applications ==
114 114  
115 115  * Smart Buildings & Home Automation
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119 119  * Smart Cities
120 120  * Smart Factory
121 121  
122 -
123 -
124 124  == 1.5 Firmware Change log ==
125 125  
126 126  [[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);"]]
127 127  
128 -
129 129  == 1.6 Hardware Change log ==
130 130  
131 131  (((
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152 152  
153 153  (((
154 154  Release version ​​​​​
155 -
156 -
157 157  )))
158 158  
159 159  = 2. Pin mapping and Power ON Device =
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167 167  
168 168  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
169 169  
170 -
171 171  = 3. Operation Mode =
172 172  
173 173  == 3.1 How it works? ==
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174 174  
175 175  (((
176 176  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.
177 -
178 -
179 179  )))
180 180  
181 181  == 3.2 Example to join LoRaWAN network ==
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239 239  == 3.3 Configure Commands to read data ==
240 240  
241 241  (((
242 -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.
243 -
244 -
227 +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.
245 245  )))
246 246  
247 247  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===