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Last modified by Xiaoling on 2025/04/23 15:57
From version 34.2
edited by Xiaoling
on 2022/06/02 10:10
Change comment: There is no comment for this version
To version 33.2
edited by Xiaoling
on 2022/06/02 09:54
Change comment: There is no comment for this version

Summary

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... ... @@ -1077,100 +1077,108 @@
1077 1077  
1078 1078  User can set the output power duration before each sampling.
1079 1079  
1080 -* **AT Command:**
1080 +* AT Command:
1081 1081  
1082 -**Example:**
1082 +Example:
1083 1083  
1084 -**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
1084 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1085 1085  
1086 -**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
1086 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1087 1087  
1088 1088  
1089 -* **LoRaWAN Downlink Command:**
1089 +* LoRaWAN Downlink Command:
1090 1090  
1091 -**07 01 aa bb**  Same as AT+5VT=(aa bb)
1091 +07 01 aa bb  Same as AT+5VT=(aa bb)
1092 1092  
1093 -**07 02 aa bb**  Same as AT+3V3T=(aa bb)
1093 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1094 1094  
1095 1095  
1096 -== 3.6 Buttons ==
1097 1097  
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
1101 1101  
1102 -== 3.7 +3V3 Output ==
1098 +1.
1099 +11. Buttons
1103 1103  
1101 +|**Button**|**Feature**
1102 +|**RST**|Reboot RS485-BL
1103 +
1104 +1.
1105 +11. +3V3 Output
1106 +
1104 1104  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1105 1105  
1106 1106  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. 
1107 1107  
1111 +
1108 1108  The +3V3 output time can be controlled by AT Command.
1109 1109  
1114 +**AT+3V3T=1000**
1110 1110  
1111 -(% style="color:#037691" %)**AT+3V3T=1000**
1112 -
1113 -
1114 1114  Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1115 1115  
1118 +
1116 1116  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1117 1117  
1118 1118  
1119 -== 3.8 +5V Output ==
1122 +1.
1123 +11. +5V Output
1120 1120  
1121 1121  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
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  
1129 +
1125 1125  The 5V output time can be controlled by AT Command.
1126 1126  
1132 +**AT+5VT=1000**
1127 1127  
1128 -(% style="color:#037691" %)**AT+5VT=1000**
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  
1136 +
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 -== 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.
1141 1141  
1142 -== 3.10 Switch Jumper ==
1142 +1.
1143 +11. LEDs
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 +|**LEDs**|**Feature**
1146 +|**LED1**|Blink when device transmit a packet.
1147 +
1148 +1.
1149 +11. Switch Jumper
1150 +
1151 +|**Switch Jumper**|**Feature**
1152 +|**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" %)(((
1157 +|**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
1163 ++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.
1165 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1160 1160  
1167 +1. Case Study
1161 1161  
1162 -= 4. Case Study =
1169 +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]]
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]]
1165 1165  
1166 1166  
1167 -= 5. Use AT Command =
1168 1168  
1169 -== 5.1 Access AT Command ==
1170 1170  
1176 +1. Use AT Command
1177 +11. Access AT Command
1178 +
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]]
1181 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1174 1174  
1175 1175  
1176 1176  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:
... ... @@ -1183,7 +1183,7 @@
1183 1183  
1184 1184  
1185 1185  
1186 -1.
1194 +1.
1187 1187  11. Common AT Command Sequence
1188 1188  111. Multi-channel ABP mode (Use with SX1301/LG308)
1189 1189  
... ... @@ -1202,8 +1202,8 @@
1202 1202  
1203 1203  ATZ
1204 1204  
1205 -1.
1206 -11.
1213 +1.
1214 +11.
1207 1207  111. Single-channel ABP mode (Use with LG01/LG02)
1208 1208  
1209 1209  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1278,7 +1278,7 @@
1278 1278  [[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]]
1279 1279  
1280 1280  
1281 -1.
1289 +1.
1282 1282  11. How to change the LoRa Frequency Bands/Region?
1283 1283  
1284 1284  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1285,7 +1285,7 @@
1285 1285  
1286 1286  
1287 1287  
1288 -1.
1296 +1.
1289 1289  11. How many RS485-Slave can RS485-BL connects?
1290 1290  
1291 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>>path:#downlink_A8]].
... ... @@ -1302,7 +1302,7 @@
1302 1302  
1303 1303  
1304 1304  
1305 -1.
1313 +1.
1306 1306  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1307 1307  
1308 1308  It might about the channels mapping. Please see for detail.
1654135840598-282.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
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... ... @@ -1,1 +1,0 @@
1 -1.3 MB
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