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Last modified by Xiaoling on 2025/04/23 15:57
From version 40.3
edited by Xiaoling
on 2022/06/02 10:57
Change comment: There is no comment for this version
To version 33.4
edited by Xiaoling
on 2022/06/02 10:01
Change comment: There is no comment for this version

Summary

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1122 1122  
1123 1123  The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
1124 1124  
1125 +
1125 1125  The 5V output time can be controlled by AT Command.
1126 1126  
1127 -
1128 1128  (% style="color:#037691" %)**AT+5VT=1000**
1129 1129  
1130 -
1131 1131  Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1132 1132  
1132 +
1133 1133  By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1134 1134  
1135 1135  
1136 +
1136 1136  == 3.9 LEDs ==
1137 1137  
1138 -(% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
1139 -|=**LEDs**|=(% style="width: 274px;" %)**Feature**
1140 -|**LED1**|(% style="width:274px" %)Blink when device transmit a packet.
1139 +|**LEDs**|**Feature**
1140 +|**LED1**|Blink when device transmit a packet.
1141 1141  
1142 1142  == 3.10 Switch Jumper ==
1143 1143  
1144 -(% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
1145 -|=(% style="width: 124px;" %)**Switch Jumper**|=(% style="width: 388px;" %)**Feature**
1146 -|(% style="width:124px" %)**SW1**|(% style="width:388px" %)(((
1144 +|**Switch Jumper**|**Feature**
1145 +|**SW1**|(((
1147 1147  ISP position: Upgrade firmware via UART
1148 1148  
1149 1149  Flash position: Configure device, check running status.
1150 1150  )))
1151 -|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
1150 +|**SW2**|(((
1152 1152  5V position: set to compatible with 5v I/O.
1153 1153  
1154 1154  3.3v position: set to compatible with 3.3v I/O.,
1155 1155  )))
1156 1156  
1157 -**+3.3V**: is always ON
1156 ++3.3V: is always ON
1158 1158  
1159 -**+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1158 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1160 1160  
1160 +1. Case Study
1161 1161  
1162 -= 4. Case Study =
1162 +User can check this URL for some case studies.
1163 1163  
1164 -User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
1164 +[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1165 1165  
1166 1166  
1167 -= 5. Use AT Command =
1168 1168  
1169 -== 5.1 Access AT Command ==
1170 1170  
1169 +1. Use AT Command
1170 +11. Access AT Command
1171 +
1171 1171  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1172 1172  
1173 -[[image:1654135840598-282.png]]
1174 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1174 1174  
1175 1175  
1176 -In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1177 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1177 1177  
1178 -[[image:1654136105500-922.png]]
1179 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1179 1179  
1180 1180  
1181 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
1182 1182  
1183 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1183 1183  
1184 -== 5.2 Common AT Command Sequence ==
1185 1185  
1186 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1187 1187  
1187 +1.
1188 +11. Common AT Command Sequence
1189 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1190 +
1188 1188  If device has not joined network yet:
1189 1189  
1190 -(% class="box infomessage" %)
1191 -(((
1192 -**AT+FDR**
1193 -)))
1193 +AT+FDR
1194 1194  
1195 -(% class="box infomessage" %)
1196 -(((
1197 -**AT+NJM=0**
1198 -)))
1195 +AT+NJM=0
1199 1199  
1200 -(% class="box infomessage" %)
1201 -(((
1202 -**ATZ**
1203 -)))
1197 +ATZ
1204 1204  
1205 1205  
1206 1206  If device already joined network:
1207 1207  
1208 -(% class="box infomessage" %)
1209 -(((
1210 -**AT+NJM=0**
1211 -)))
1202 +AT+NJM=0
1212 1212  
1213 -(% class="box infomessage" %)
1214 -(((
1215 -**ATZ**
1216 -)))
1204 +ATZ
1217 1217  
1206 +1.
1207 +11.
1208 +111. Single-channel ABP mode (Use with LG01/LG02)
1218 1218  
1219 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1210 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1220 1220  
1212 +AT+NJM=0 Set to ABP mode
1221 1221  
1222 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1214 +AT+ADR=0 Set the Adaptive Data Rate Off
1223 1223  
1224 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1216 +AT+DR=5  Set Data Rate
1225 1225  
1226 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1218 +AT+TDC=60000  Set transmit interval to 60 seconds
1227 1227  
1228 -(% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
1220 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1229 1229  
1230 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1222 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1231 1231  
1232 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1224 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1233 1233  
1234 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1226 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1235 1235  
1236 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1228 +ATZ          Reset MCU
1237 1237  
1238 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1230 +**Note:**
1239 1239  
1240 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1232 +1. Make sure the device is set to ABP mode in the IoT Server.
1233 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1234 +1. 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.
1235 +1. 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
1241 1241  
1237 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1242 1242  
1243 -(% style="color:red" %)**Note:**
1244 1244  
1245 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1246 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1247 -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.
1248 -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
1240 +1. FAQ
1241 +11. How to upgrade the image?
1249 1249  
1250 -[[image:1654136435598-589.png]]
1251 -
1252 -
1253 -= 6. FAQ =
1254 -
1255 -== 6.1 How to upgrade the image? ==
1256 -
1257 1257  The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1258 1258  
1259 1259  * Support new features
... ... @@ -1262,7 +1262,7 @@
1262 1262  
1263 1263  Below shows the hardware connection for how to upload an image to RS485-BL:
1264 1264  
1265 -[[image:1654136646995-976.png]]
1251 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1266 1266  
1267 1267  **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]].
1268 1268  
... ... @@ -1270,61 +1270,81 @@
1270 1270  
1271 1271  **Step3: **Open flashloader; choose the correct COM port to update.
1272 1272  
1273 -[[image:image-20220602102605-1.png]]
1274 1274  
1260 +|(((
1261 +HOLD PRO then press the RST button, SYS will be ON, then click next
1262 +)))
1275 1275  
1276 -[[image:image-20220602102637-2.png]]
1264 +|(((
1265 +Board detected
1266 +)))
1277 1277  
1268 +|(((
1269 +
1270 +)))
1278 1278  
1279 -[[image:image-20220602102715-3.png]]
1272 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1280 1280  
1281 1281  
1282 1282  
1283 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1276 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1284 1284  
1285 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1286 1286  
1279 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1287 1287  
1288 1288  
1289 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1282 +1.
1283 +11. How to change the LoRa Frequency Bands/Region?
1290 1290  
1291 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1285 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1292 1292  
1293 1293  
1294 1294  
1295 -= 7. Trouble Shooting =
1289 +1.
1290 +11. How many RS485-Slave can RS485-BL connects?
1296 1296  
1292 +The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
1297 1297  
1298 -== 7.1 Downlink doesn’t work, how to solve it? ==
1299 1299  
1300 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1301 1301  
1302 1302  
1303 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1297 +1. Trouble Shooting     
1298 +11. Downlink doesn’t work, how to solve it?
1304 1304  
1305 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1300 +Please see this link for debug:
1306 1306  
1302 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1307 1307  
1308 -= 8. Order Info =
1309 1309  
1310 -(% style="color:bule" %)**Part Number: RS485-BL-XXX**
1311 1311  
1312 -(% style="color:bule" %)**XXX:**
1306 +1.
1307 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1313 1313  
1314 -* (% style="color:bule" %)**EU433**(%%): frequency bands EU433
1315 -* (% style="color:bule" %)**EU868**(%%): frequency bands EU868
1316 -* (% style="color:bule" %)**KR920**(%%): frequency bands KR920
1317 -* (% style="color:bule" %)**CN470**(%%): frequency bands CN470
1318 -* (% style="color:bule" %)**AS923**(%%): frequency bands AS923
1319 -* (% style="color:bule" %)**AU915**(%%): frequency bands AU915
1320 -* (% style="color:bule" %)**US915**(%%): frequency bands US915
1321 -* (% style="color:bule" %)**IN865**(%%): frequency bands IN865
1322 -* (% style="color:bule" %)**RU864**(%%): frequency bands RU864
1323 -* (% style="color:bule" %)**KZ865**(%%): frequency bands KZ865
1309 +It might about the channels mapping. Please see for detail.
1324 1324  
1311 +[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1325 1325  
1326 -= 9. Packing Info =
1327 1327  
1314 +
1315 +1. Order Info
1316 +
1317 +**Part Number: RS485-BL-XXX**
1318 +
1319 +**XXX:**
1320 +
1321 +* **EU433**: frequency bands EU433
1322 +* **EU868**: frequency bands EU868
1323 +* **KR920**: frequency bands KR920
1324 +* **CN470**: frequency bands CN470
1325 +* **AS923**: frequency bands AS923
1326 +* **AU915**: frequency bands AU915
1327 +* **US915**: frequency bands US915
1328 +* **IN865**: frequency bands IN865
1329 +* **RU864**: frequency bands RU864
1330 +* **KZ865: **frequency bands KZ865
1331 +
1332 +1. Packing Info
1333 +
1328 1328  **Package Includes**:
1329 1329  
1330 1330  * RS485-BL x 1
... ... @@ -1338,9 +1338,8 @@
1338 1338  * Package Size / pcs : 14.5 x 8 x 5 cm
1339 1339  * Weight / pcs : 170g
1340 1340  
1347 +1. Support
1341 1341  
1342 -= 10. Support =
1343 -
1344 1344  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1345 1345  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1346 1346  
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