Skip to Content
Last modified by Xiaoling on 2025/04/23 15:57
From version 33.4
edited by Xiaoling
on 2022/06/02 10:01
Change comment: There is no comment for this version
To version 35.5
edited by Xiaoling
on 2022/06/02 10:20
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -1122,113 +1122,125 @@
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 -
1126 1126  The 5V output time can be controlled by AT Command.
1127 1127  
1127 +
1128 1128  (% style="color:#037691" %)**AT+5VT=1000**
1129 1129  
1130 +
1130 1130  Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1131 1131  
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 -
1137 1137  == 3.9 LEDs ==
1138 1138  
1139 -|**LEDs**|**Feature**
1140 -|**LED1**|Blink when device transmit a packet.
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 1142  == 3.10 Switch Jumper ==
1143 1143  
1144 -|**Switch Jumper**|**Feature**
1145 -|**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" %)(((
1146 1146  ISP position: Upgrade firmware via UART
1147 1147  
1148 1148  Flash position: Configure device, check running status.
1149 1149  )))
1150 -|**SW2**|(((
1151 +|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
1151 1151  5V position: set to compatible with 5v I/O.
1152 1152  
1153 1153  3.3v position: set to compatible with 3.3v I/O.,
1154 1154  )))
1155 1155  
1156 -+3.3V: is always ON
1157 +**+3.3V**: is always ON
1157 1157  
1158 -+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.
1159 1159  
1160 -1. Case Study
1161 1161  
1162 -User can check this URL for some case studies.
1162 += 4. Case Study =
1163 1163  
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]]
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 1165  
1166 1166  
1167 += 5. Use AT Command =
1167 1167  
1169 +== 5.1 Access AT Command ==
1168 1168  
1169 -1. Use AT Command
1170 -11. Access AT Command
1171 -
1172 1172  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.
1173 1173  
1174 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1173 +[[image:1654135840598-282.png]]
1175 1175  
1176 1176  
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:
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 1178  
1179 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1178 +[[image:1654136105500-922.png]]
1180 1180  
1181 1181  
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]]
1184 1184  
1184 +== 5.2 Common AT Command Sequence ==
1185 1185  
1186 +=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1186 1186  
1187 -1.
1188 -11. Common AT Command Sequence
1189 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1190 -
1191 1191  If device has not joined network yet:
1192 1192  
1193 -AT+FDR
1190 +(% class="box infomessage" %)
1191 +(((
1192 +**AT+FDR**
1193 +)))
1194 1194  
1195 -AT+NJM=0
1195 +(% class="box infomessage" %)
1196 +(((
1197 +**AT+NJM=0**
1198 +)))
1196 1196  
1197 -ATZ
1200 +(% class="box infomessage" %)
1201 +(((
1202 +**ATZ**
1203 +)))
1198 1198  
1199 1199  
1200 1200  If device already joined network:
1201 1201  
1202 -AT+NJM=0
1208 +(% class="box infomessage" %)
1209 +(((
1210 +**AT+NJM=0**
1211 +)))
1203 1203  
1204 -ATZ
1213 +(% class="box infomessage" %)
1214 +(((
1215 +**ATZ**
1216 +)))
1205 1205  
1206 -1.
1207 -11.
1208 -111. Single-channel ABP mode (Use with LG01/LG02)
1209 1209  
1210 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1219 +=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1211 1211  
1212 -AT+NJM=0 Set to ABP mode
1213 1213  
1214 -AT+ADR=0 Set the Adaptive Data Rate Off
1222 +(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1215 1215  
1216 -AT+DR=5  Set Data Rate
1224 +(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1217 1217  
1218 -AT+TDC=60000  Set transmit interval to 60 seconds
1226 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1219 1219  
1220 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1228 +(% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
1221 1221  
1222 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1230 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1223 1223  
1224 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1232 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1225 1225  
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.
1234 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1227 1227  
1228 -ATZ          Reset MCU
1236 +(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1229 1229  
1230 -**Note:**
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.
1231 1231  
1240 +(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1241 +
1242 +(% style="color:red" %)**Note:**
1243 +
1232 1232  1. Make sure the device is set to ABP mode in the IoT Server.
1233 1233  1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1234 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.
1654135840598-282.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +1.3 MB
Content
1654136105500-922.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +203.7 KB
Content