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Last modified by Xiaoling on 2025/04/23 15:57
From version 35.4
edited by Xiaoling
on 2022/06/02 10:17
Change comment: There is no comment for this version
To version 33.5
edited by Xiaoling
on 2022/06/02 10:01
Change comment: There is no comment for this version

Summary

Details

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Content
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1099 1099  |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1100 1100  |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
1101 1101  
1102 +
1102 1102  == 3.7 +3V3 Output ==
1103 1103  
1104 1104  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -1122,103 +1122,91 @@
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  
1126 +
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  
1133 +
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  
1137 +
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.
1140 +|**LEDs**|**Feature**
1141 +|**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" %)(((
1145 +|**Switch Jumper**|**Feature**
1146 +|**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" %)(((
1151 +|**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
1157 ++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.
1159 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1160 1160  
1161 +1. Case Study
1161 1161  
1162 -= 4. Case Study =
1163 +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]]
1165 +[[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  
1170 +1. Use AT Command
1171 +11. Access AT Command
1172 +
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]]
1175 +[[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:
1178 +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]]
1180 +[[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  
1184 +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  
1188 +1.
1189 +11. Common AT Command Sequence
1190 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1191 +
1188 1188  If device has not joined network yet:
1189 1189  
1190 -(% class="box infomessage" %)
1191 -(((
1192 -**AT+FDR**
1193 -)))
1194 +AT+FDR
1194 1194  
1195 -(% class="box infomessage" %)
1196 -(((
1197 -**AT+NJM=0**
1198 -)))
1196 +AT+NJM=0
1199 1199  
1200 -(% class="box infomessage" %)
1201 -(((
1202 -**ATZ**
1203 -)))
1198 +ATZ
1204 1204  
1205 1205  
1206 1206  If device already joined network:
1207 1207  
1208 -(% class="box infomessage" %)
1209 -(((
1210 -**AT+NJM=0**
1211 -)))
1203 +AT+NJM=0
1212 1212  
1213 -(% class="box infomessage" %)
1214 -(((
1215 -**ATZ**
1216 -)))
1205 +ATZ
1217 1217  
1207 +1.
1208 +11.
1209 +111. Single-channel ABP mode (Use with LG01/LG02)
1218 1218  
1219 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1220 -
1221 -
1222 1222  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1223 1223  
1224 1224  AT+NJM=0 Set to ABP mode
... ... @@ -1291,7 +1291,7 @@
1291 1291  [[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]]
1292 1292  
1293 1293  
1294 -1.
1283 +1.
1295 1295  11. How to change the LoRa Frequency Bands/Region?
1296 1296  
1297 1297  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1298,7 +1298,7 @@
1298 1298  
1299 1299  
1300 1300  
1301 -1.
1290 +1.
1302 1302  11. How many RS485-Slave can RS485-BL connects?
1303 1303  
1304 1304  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]].
... ... @@ -1315,7 +1315,7 @@
1315 1315  
1316 1316  
1317 1317  
1318 -1.
1307 +1.
1319 1319  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1320 1320  
1321 1321  It might about the channels mapping. Please see for detail.
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