Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 58.44 >
edited by Xiaoling
on 2022/06/06 13:39
To version < 60.7 >
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Summary

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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
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3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
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25 25  (((
26 26  (((
27 27  (((
27 +
28 +
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 30  )))
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48 48  
49 49  (((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52 +
53 +
51 51  )))
52 52  )))
53 53  )))
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66 66  ** Idle: 32mA@12v
67 67  ** 20dB Transmit: 65mA@12v
68 68  
72 +
69 69  **Interface for Model:**
70 70  
71 71  * RS485
72 72  * Power Input 7~~ 24V DC. 
73 73  
78 +
74 74  **LoRa Spec:**
75 75  
76 76  * Frequency Range:
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93 93  * Packet engine up to 256 bytes with CRC
94 94  
95 95  
101 +
96 96  == 1.3 Features ==
97 97  
98 98  * LoRaWAN Class A & Class C protocol (default Class C)
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105 105  * Support Interrupt uplink (Since hardware version v1.2)
106 106  
107 107  
114 +
108 108  == 1.4 Applications ==
109 109  
110 110  * Smart Buildings & Home Automation
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115 115  * Smart Factory
116 116  
117 117  
125 +
118 118  == 1.5 Firmware Change log ==
119 119  
120 120  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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183 183  
184 184  [[image:1653268227651-549.png||height="592" width="720"]]
185 185  
194 +
186 186  (((
187 187  The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
188 188  )))
189 189  
190 190  (((
191 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
200 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
192 192  )))
193 193  
194 194  (((
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198 198  
199 199  [[image:1652953462722-299.png]]
200 200  
210 +
201 201  (((
202 202  (((
203 203  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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204 204  )))
205 205  
206 206  (((
207 -Add APP EUI in the application.
217 +**Add APP EUI in the application.**
208 208  )))
209 209  )))
210 210  
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220 220  
221 221  [[image:1652953542269-423.png||height="710" width="723"]]
222 222  
223 -Add APP KEY and DEV EUI
224 224  
234 +
235 +**Add APP KEY and DEV EUI**
236 +
225 225  [[image:1652953553383-907.png||height="514" width="724"]]
226 226  
227 227  
228 228  (((
229 -**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
241 +(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
230 230  )))
231 231  
232 232  [[image:1652953568895-172.png||height="232" width="724"]]
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314 314  
315 315  
316 316  
329 +
317 317  === 3.3.2 Configure sensors ===
318 318  
319 319  (((
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325 325  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
326 326  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
327 327  |AT+CFGDEV|(% style="width:110px" %)(((
341 +(((
328 328  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 +)))
329 329  
345 +(((
330 330  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 +)))
331 331  
349 +(((
332 332  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 +)))
333 333  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
334 334  
335 -
336 -
337 337  === 3.3.3 Configure read commands for each sampling ===
338 338  
339 339  (((
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1182 1182  )))
1183 1183  
1184 1184  (((
1202 +(((
1185 1185  (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
1186 1186  )))
1205 +)))
1187 1187  
1188 1188  
1189 1189  == 3.7 Buttons ==
1190 1190  
1191 1191  
1192 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1193 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1194 -|(% style="width:50px" %)**ACT**|(% style="width:350px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1195 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1196 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1211 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1213 +|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1214 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1215 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1197 1197  
1198 1198  == 3.8 LEDs ==
1199 1199  
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1254 1254  )))
1255 1255  
1256 1256  
1276 +(((
1257 1257  If device already joined network:
1278 +)))
1258 1258  
1259 1259  (% class="box infomessage" %)
1260 1260  (((
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1293 1293  
1294 1294  (% style="color:red" %)**Note:**
1295 1295  
1317 +(((
1296 1296  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1297 1297  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1298 1298  3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1299 1299  4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1322 +)))
1300 1300  
1301 1301  [[image:1654162478620-421.png]]
1302 1302  
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1325 1325  
1326 1326  [[image:1654162535040-878.png]]
1327 1327  
1351 +(((
1328 1328  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1353 +)))
1329 1329  
1355 +(((
1330 1330  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1357 +)))
1331 1331  
1359 +(((
1332 1332  **Step3: **Open flashloader; choose the correct COM port to update.
1361 +)))
1333 1333  
1334 1334  (((
1335 1335  (((
1365 +(((
1336 1336  (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1337 1337  )))
1338 1338  )))
1369 +)))
1339 1339  
1340 1340  
1341 1341  [[image:image-20220602175818-12.png]]

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