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Last modified by Xiaoling on 2025/04/23 15:57
From version 33.3
edited by Xiaoling
on 2022/06/02 09:56
Change comment: There is no comment for this version
To version 33.11
edited by Xiaoling
on 2022/06/02 10:10
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -1093,88 +1093,81 @@
1093 1093  **07 02 aa bb**  Same as AT+3V3T=(aa bb)
1094 1094  
1095 1095  
1096 +== 3.6 Buttons ==
1096 1096  
1098 +(% border="1" style="background-color:#ffffcc; color:green; width:233px" %)
1099 +|=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1100 +|(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
1097 1097  
1098 -1.
1099 -11. Buttons
1102 +== 3.7 +3V3 Output ==
1100 1100  
1101 -|**Button**|**Feature**
1102 -|**RST**|Reboot RS485-BL
1103 -
1104 -1.
1105 -11. +3V3 Output
1106 -
1107 1107  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1108 1108  
1109 1109  The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
1110 1110  
1111 -
1112 1112  The +3V3 output time can be controlled by AT Command.
1113 1113  
1114 -**AT+3V3T=1000**
1115 1115  
1116 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1111 +(% style="color:#037691" %)**AT+3V3T=1000**
1117 1117  
1118 1118  
1114 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1115 +
1119 1119  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1120 1120  
1121 1121  
1122 -1.
1123 -11. +5V Output
1119 +== 3.8 +5V Output ==
1124 1124  
1125 1125  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1126 1126  
1127 1127  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. 
1128 1128  
1129 -
1130 1130  The 5V output time can be controlled by AT Command.
1131 1131  
1132 -**AT+5VT=1000**
1133 1133  
1134 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1128 +(% style="color:#037691" %)**AT+5VT=1000**
1135 1135  
1136 1136  
1131 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1132 +
1137 1137  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.
1138 1138  
1139 1139  
1136 +== 3.9 LEDs ==
1140 1140  
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.
1141 1141  
1142 -1.
1143 -11. LEDs
1142 +== 3.10 Switch Jumper ==
1144 1144  
1145 -|**LEDs**|**Feature**
1146 -|**LED1**|Blink when device transmit a packet.
1147 -
1148 -1.
1149 -11. Switch Jumper
1150 -
1151 -|**Switch Jumper**|**Feature**
1152 -|**SW1**|(((
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" %)(((
1153 1153  ISP position: Upgrade firmware via UART
1154 1154  
1155 1155  Flash position: Configure device, check running status.
1156 1156  )))
1157 -|**SW2**|(((
1151 +|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
1158 1158  5V position: set to compatible with 5v I/O.
1159 1159  
1160 1160  3.3v position: set to compatible with 3.3v I/O.,
1161 1161  )))
1162 1162  
1163 -+3.3V: is always ON
1157 +**+3.3V**: is always ON
1164 1164  
1165 -+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.
1166 1166  
1167 -1. Case Study
1168 1168  
1169 -User can check this URL for some case studies.
1162 += 4. Case Study =
1170 1170  
1171 -[[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]]
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]]
1172 1172  
1173 1173  
1174 1174  
1168 += 5. Use AT Command =
1175 1175  
1176 -1. Use AT Command
1177 -11. Access AT Command
1170 +== 5.1 Access AT Command ==
1178 1178  
1179 1179  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.
1180 1180  
... ... @@ -1191,7 +1191,7 @@
1191 1191  
1192 1192  
1193 1193  
1194 -1.
1187 +1.
1195 1195  11. Common AT Command Sequence
1196 1196  111. Multi-channel ABP mode (Use with SX1301/LG308)
1197 1197  
... ... @@ -1210,8 +1210,8 @@
1210 1210  
1211 1211  ATZ
1212 1212  
1213 -1.
1214 -11.
1206 +1.
1207 +11.
1215 1215  111. Single-channel ABP mode (Use with LG01/LG02)
1216 1216  
1217 1217  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1286,7 +1286,7 @@
1286 1286  [[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 -1.
1282 +1.
1290 1290  11. How to change the LoRa Frequency Bands/Region?
1291 1291  
1292 1292  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1293,7 +1293,7 @@
1293 1293  
1294 1294  
1295 1295  
1296 -1.
1289 +1.
1297 1297  11. How many RS485-Slave can RS485-BL connects?
1298 1298  
1299 1299  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]].
... ... @@ -1310,7 +1310,7 @@
1310 1310  
1311 1311  
1312 1312  
1313 -1.
1306 +1.
1314 1314  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1315 1315  
1316 1316  It might about the channels mapping. Please see for detail.