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Last modified by Xiaoling on 2025/04/23 15:57
From version 29.13
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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93 93  * 127 dB Dynamic Range RSSI.
94 94  * Automatic RF Sense and CAD with ultra-fast AFC. ​​​
95 95  
96 -
97 -
98 98  == 1.3 Features ==
99 99  
100 100  * LoRaWAN Class A & Class C protocol (default Class A)
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106 106  * Support Modbus protocol
107 107  * Support Interrupt uplink
108 108  
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 -
122 122  == 1.5 Firmware Change log ==
123 123  
124 124  [[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);"]]
125 125  
126 -
127 127  == 1.6 Hardware Change log ==
128 128  
129 129  (((
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150 150  
151 151  (((
152 152  Release version ​​​​​
153 -
154 -
155 155  )))
156 156  
157 157  = 2. Pin mapping and Power ON Device =
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165 165  
166 166  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
167 167  
168 -
169 169  = 3. Operation Mode =
170 170  
171 171  == 3.1 How it works? ==
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172 172  
173 173  (((
174 174  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.
175 -
176 -
177 177  )))
178 178  
179 179  == 3.2 Example to join LoRaWAN network ==
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237 237  == 3.3 Configure Commands to read data ==
238 238  
239 239  (((
240 -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.
241 -
242 -
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.
243 243  )))
244 244  
245 245  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===