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Last modified by Xiaoling on 2025/04/23 15:57
From version 29.12
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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104 104  * Support Modbus protocol
105 105  * Support Interrupt uplink
106 106  
107 -
108 -
109 109  == 1.4 Applications ==
110 110  
111 111  * Smart Buildings & Home Automation
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115 115  * Smart Cities
116 116  * Smart Factory
117 117  
118 -
119 -
120 120  == 1.5 Firmware Change log ==
121 121  
122 122  [[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);"]]
123 123  
124 -
125 125  == 1.6 Hardware Change log ==
126 126  
127 127  (((
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148 148  
149 149  (((
150 150  Release version ​​​​​
151 -
152 -
153 153  )))
154 154  
155 155  = 2. Pin mapping and Power ON Device =
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163 163  
164 164  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
165 165  
166 -
167 167  = 3. Operation Mode =
168 168  
169 169  == 3.1 How it works? ==
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170 170  
171 171  (((
172 172  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.
173 -
174 -
175 175  )))
176 176  
177 177  == 3.2 Example to join LoRaWAN network ==
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235 235  == 3.3 Configure Commands to read data ==
236 236  
237 237  (((
238 -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.
239 -
240 -
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.
241 241  )))
242 242  
243 243  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===