<
From version < 32.7 >
edited by Xiaoling
on 2022/06/02 15:25
To version < 32.16 >
edited by Xiaoling
on 2022/06/02 15:30
>
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Summary

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Content
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100 100  * Smart Cities
101 101  * Smart Factory
102 102  
103 +
104 +
103 103  == 1.5 Firmware Change log ==
104 104  
105 105  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
106 106  
109 +
107 107  == 1.6 Hardware Change log ==
108 108  
109 109  (((
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111 111  v1.2: Add External Interrupt Pin.
112 112  
113 113  v1.0: Release
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118 +
114 114  )))
115 115  )))
116 116  
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127 127  )))
128 128  
129 129  [[image:1653268091319-405.png]]
135 +
136 +
130 130  )))
131 131  
132 132  = 3. Operation Mode =
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135 135  
136 136  (((
137 137  The RS485-LN is configured as LoRaWAN OTAA Class C 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-LN. It will auto join the network via OTAA.
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146 +
138 138  )))
139 139  
140 140  == 3.2 Example to join LoRaWAN network ==
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143 143  
144 144  [[image:1653268155545-638.png||height="334" width="724"]]
145 145  
155 +
146 146  (((
157 +(((
147 147  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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148 148  
161 +(((
149 149  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
163 +)))
150 150  
151 151  [[image:1653268227651-549.png||height="592" width="720"]]
152 152  
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198 198  
199 199  [[image:1652953568895-172.png||height="232" width="724"]]
200 200  
215 +
201 201  == 3.3 Configure Commands to read data ==
202 202  
203 203  (((
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207 207  
208 208  (((
209 209  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
225 +
226 +
210 210  )))
211 211  )))
212 212  
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214 214  
215 215  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
216 216  
217 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
218 -|(((
234 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235 +|(% style="width:128px" %)(((
219 219  **AT Commands**
220 -)))|(% style="width:285px" %)(((
237 +)))|(% style="width:305px" %)(((
221 221  **Description**
222 -)))|(% style="width:347px" %)(((
239 +)))|(% style="width:346px" %)(((
223 223  **Example**
224 224  )))
225 -|(((
242 +|(% style="width:128px" %)(((
226 226  AT+BAUDR
227 -)))|(% style="width:285px" %)(((
244 +)))|(% style="width:305px" %)(((
228 228  Set the baud rate (for RS485 connection). Default Value is: 9600.
229 -)))|(% style="width:347px" %)(((
246 +)))|(% style="width:346px" %)(((
230 230  (((
231 231  AT+BAUDR=9600
232 232  )))
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235 235  Options: (1200,2400,4800,14400,19200,115200)
236 236  )))
237 237  )))
238 -|(((
255 +|(% style="width:128px" %)(((
239 239  AT+PARITY
240 -)))|(% style="width:285px" %)(((
257 +)))|(% style="width:305px" %)(((
241 241  Set UART parity (for RS485 connection)
242 -)))|(% style="width:347px" %)(((
259 +)))|(% style="width:346px" %)(((
243 243  (((
244 244  AT+PARITY=0
245 245  )))
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248 248  Option: 0: no parity, 1: odd parity, 2: even parity
249 249  )))
250 250  )))
251 -|(((
268 +|(% style="width:128px" %)(((
252 252  AT+STOPBIT
253 -)))|(% style="width:285px" %)(((
270 +)))|(% style="width:305px" %)(((
254 254  (((
255 255  Set serial stopbit (for RS485 connection)
256 256  )))
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258 258  (((
259 259  
260 260  )))
261 -)))|(% style="width:347px" %)(((
278 +)))|(% style="width:346px" %)(((
262 262  (((
263 263  AT+STOPBIT=0 for 1bit
264 264  )))
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272 272  )))
273 273  )))
274 274  
292 +
275 275  === 3.3.2 Configure sensors ===
276 276  
277 277  (((
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