Last modified by Karry Zhuang on 2025/03/06 16:34
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From version < 32.4 >
edited by Xiaoling
on 2022/06/02 15:24
To version < 32.16 >
edited by Xiaoling
on 2022/06/02 15:30
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41 41  
42 42  == 1.2 Specifications ==
43 43  
44 +
44 44  **Hardware System:**
45 45  
46 46  * STM32L072CZT6 MCU
... ... @@ -47,8 +47,6 @@
47 47  * SX1276/78 Wireless Chip 
48 48  * Power Consumption (exclude RS485 device):
49 49  ** Idle: 32mA@12v
50 -
51 -*
52 52  ** 20dB Transmit: 65mA@12v
53 53  
54 54  **Interface for Model:**
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77 77  * Automatic RF Sense and CAD with ultra-fast AFC.
78 78  * Packet engine up to 256 bytes with CRC.
79 79  
79 +
80 +
80 80  == 1.3 Features ==
81 81  
82 82  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -88,6 +88,8 @@
88 88  * Support Modbus protocol
89 89  * Support Interrupt uplink (Since hardware version v1.2)
90 90  
92 +
93 +
91 91  == 1.4 Applications ==
92 92  
93 93  * Smart Buildings & Home Automation
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97 97  * Smart Cities
98 98  * Smart Factory
99 99  
103 +
104 +
100 100  == 1.5 Firmware Change log ==
101 101  
102 102  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
103 103  
109 +
104 104  == 1.6 Hardware Change log ==
105 105  
106 106  (((
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108 108  v1.2: Add External Interrupt Pin.
109 109  
110 110  v1.0: Release
117 +
118 +
111 111  )))
112 112  )))
113 113  
... ... @@ -124,6 +124,8 @@
124 124  )))
125 125  
126 126  [[image:1653268091319-405.png]]
135 +
136 +
127 127  )))
128 128  
129 129  = 3. Operation Mode =
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132 132  
133 133  (((
134 134  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.
145 +
146 +
135 135  )))
136 136  
137 137  == 3.2 Example to join LoRaWAN network ==
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140 140  
141 141  [[image:1653268155545-638.png||height="334" width="724"]]
142 142  
155 +
143 143  (((
157 +(((
144 144  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:
159 +)))
145 145  
161 +(((
146 146  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
163 +)))
147 147  
148 148  [[image:1653268227651-549.png||height="592" width="720"]]
149 149  
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195 195  
196 196  [[image:1652953568895-172.png||height="232" width="724"]]
197 197  
215 +
198 198  == 3.3 Configure Commands to read data ==
199 199  
200 200  (((
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204 204  
205 205  (((
206 206  (% 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 +
207 207  )))
208 208  )))
209 209  
... ... @@ -211,19 +211,19 @@
211 211  
212 212  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:
213 213  
214 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
215 -|(((
234 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235 +|(% style="width:128px" %)(((
216 216  **AT Commands**
217 -)))|(% style="width:285px" %)(((
237 +)))|(% style="width:305px" %)(((
218 218  **Description**
219 -)))|(% style="width:347px" %)(((
239 +)))|(% style="width:346px" %)(((
220 220  **Example**
221 221  )))
222 -|(((
242 +|(% style="width:128px" %)(((
223 223  AT+BAUDR
224 -)))|(% style="width:285px" %)(((
244 +)))|(% style="width:305px" %)(((
225 225  Set the baud rate (for RS485 connection). Default Value is: 9600.
226 -)))|(% style="width:347px" %)(((
246 +)))|(% style="width:346px" %)(((
227 227  (((
228 228  AT+BAUDR=9600
229 229  )))
... ... @@ -232,11 +232,11 @@
232 232  Options: (1200,2400,4800,14400,19200,115200)
233 233  )))
234 234  )))
235 -|(((
255 +|(% style="width:128px" %)(((
236 236  AT+PARITY
237 -)))|(% style="width:285px" %)(((
257 +)))|(% style="width:305px" %)(((
238 238  Set UART parity (for RS485 connection)
239 -)))|(% style="width:347px" %)(((
259 +)))|(% style="width:346px" %)(((
240 240  (((
241 241  AT+PARITY=0
242 242  )))
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245 245  Option: 0: no parity, 1: odd parity, 2: even parity
246 246  )))
247 247  )))
248 -|(((
268 +|(% style="width:128px" %)(((
249 249  AT+STOPBIT
250 -)))|(% style="width:285px" %)(((
270 +)))|(% style="width:305px" %)(((
251 251  (((
252 252  Set serial stopbit (for RS485 connection)
253 253  )))
... ... @@ -255,7 +255,7 @@
255 255  (((
256 256  
257 257  )))
258 -)))|(% style="width:347px" %)(((
278 +)))|(% style="width:346px" %)(((
259 259  (((
260 260  AT+STOPBIT=0 for 1bit
261 261  )))
... ... @@ -269,6 +269,7 @@
269 269  )))
270 270  )))
271 271  
292 +
272 272  === 3.3.2 Configure sensors ===
273 273  
274 274  (((

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