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Last modified by Xiaoling on 2025/04/23 15:57
From version 33.9
edited by Xiaoling
on 2022/06/02 10:06
Change comment: There is no comment for this version
To version 33.1
edited by Xiaoling
on 2022/06/02 09:51
Change comment: Uploaded new attachment "1654134704555-320.png", version {1}

Summary

Details

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Content
... ... @@ -1012,57 +1012,52 @@
1012 1012  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1013 1013  
1014 1014  
1015 -* **AT Command:**
1015 +* AT Command:
1016 1016  
1017 -(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1017 +**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1018 1018  
1019 +Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1020 +
1019 1019  Example screen shot after clear all RS485 commands. 
1020 1020  
1021 1021  
1024 +
1022 1022  The uplink screen shot is:
1023 1023  
1024 -[[image:1654134704555-320.png]]
1027 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1025 1025  
1026 1026  
1027 -* **Downlink Payload:**
1030 +* Downlink Payload:
1028 1028  
1029 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1032 +0x09 aa bb same as AT+CMDEAR=aa,bb
1030 1030  
1031 1031  
1035 +==== Set Serial Communication Parameters ====
1032 1032  
1033 -==== **Set Serial Communication Parameters** ====
1034 -
1035 1035  Set the Rs485 serial communication parameters:
1036 1036  
1037 -* **AT Command:**
1039 +* AT Command:
1038 1038  
1039 1039  Set Baud Rate:
1040 1040  
1041 -(% class="box infomessage" %)
1042 -(((
1043 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1044 -)))
1043 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1045 1045  
1046 -Set UART Parity
1047 1047  
1048 -(% class="box infomessage" %)
1049 -(((
1050 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1051 -)))
1046 +Set UART parity
1052 1052  
1048 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1049 +
1050 +
1053 1053  Set STOPBIT
1054 1054  
1055 -(% class="box infomessage" %)
1056 -(((
1057 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1058 -)))
1053 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1059 1059  
1060 1060  
1061 -* **Downlink Payload:**
1056 +* Downlink Payload:
1062 1062  
1063 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1064 1064  
1065 -**Example:**
1060 +Example:
1066 1066  
1067 1067  * A7 01 00 60   same as AT+BAUDR=9600
1068 1068  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -1072,96 +1072,99 @@
1072 1072  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1073 1073  
1074 1074  
1070 +==== Control output power duration ====
1075 1075  
1076 -==== **Control output power duration** ====
1077 -
1078 1078  User can set the output power duration before each sampling.
1079 1079  
1080 -* **AT Command:**
1074 +* AT Command:
1081 1081  
1082 -**Example:**
1076 +Example:
1083 1083  
1084 -**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
1078 +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.
1080 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1087 1087  
1088 1088  
1089 -* **LoRaWAN Downlink Command:**
1083 +* LoRaWAN Downlink Command:
1090 1090  
1091 -**07 01 aa bb**  Same as AT+5VT=(aa bb)
1085 +07 01 aa bb  Same as AT+5VT=(aa bb)
1092 1092  
1093 -**07 02 aa bb**  Same as AT+3V3T=(aa bb)
1087 +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 ==
1092 +1.
1093 +11. Buttons
1103 1103  
1095 +|**Button**|**Feature**
1096 +|**RST**|Reboot RS485-BL
1097 +
1098 +1.
1099 +11. +3V3 Output
1100 +
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  
1105 +
1108 1108  The +3V3 output time can be controlled by AT Command.
1109 1109  
1108 +**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  
1112 +
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 ==
1116 +1.
1117 +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  
1123 +
1125 1125  The 5V output time can be controlled by AT Command.
1126 1126  
1126 +**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  
1130 +
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  
1136 +1.
1137 +11. LEDs
1142 1142  
1143 -== 3.10 Switch Jumper ==
1139 +|**LEDs**|**Feature**
1140 +|**LED1**|Blink when device transmit a packet.
1144 1144  
1145 -(% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
1146 -|=(% style="width: 124px;" %)**Switch Jumper**|=(% style="width: 388px;" %)**Feature**
1147 -|(% style="width:124px" %)**SW1**|(% style="width:388px" %)(((
1142 +1.
1143 +11. Switch Jumper
1144 +
1145 +|**Switch Jumper**|**Feature**
1146 +|**SW1**|(((
1148 1148  ISP position: Upgrade firmware via UART
1149 1149  
1150 1150  Flash position: Configure device, check running status.
1151 1151  )))
1152 -|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
1151 +|**SW2**|(((
1153 1153  5V position: set to compatible with 5v I/O.
1154 1154  
1155 1155  3.3v position: set to compatible with 3.3v I/O.,
1156 1156  )))
1157 1157  
1158 -**+3.3V**: is always ON
1157 ++3.3V: is always ON
1159 1159  
1160 -**+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.
1161 1161  
1161 +1. Case Study
1162 1162  
1163 -= 4. Case Study =
1164 -
1165 1165  User can check this URL for some case studies.
1166 1166  
1167 1167  [[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]]
... ... @@ -1187,7 +1187,7 @@
1187 1187  
1188 1188  
1189 1189  
1190 -1.
1188 +1.
1191 1191  11. Common AT Command Sequence
1192 1192  111. Multi-channel ABP mode (Use with SX1301/LG308)
1193 1193  
... ... @@ -1206,8 +1206,8 @@
1206 1206  
1207 1207  ATZ
1208 1208  
1209 -1.
1210 -11.
1207 +1.
1208 +11.
1211 1211  111. Single-channel ABP mode (Use with LG01/LG02)
1212 1212  
1213 1213  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1282,7 +1282,7 @@
1282 1282  [[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]]
1283 1283  
1284 1284  
1285 -1.
1283 +1.
1286 1286  11. How to change the LoRa Frequency Bands/Region?
1287 1287  
1288 1288  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1289,7 +1289,7 @@
1289 1289  
1290 1290  
1291 1291  
1292 -1.
1290 +1.
1293 1293  11. How many RS485-Slave can RS485-BL connects?
1294 1294  
1295 1295  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]].
... ... @@ -1306,7 +1306,7 @@
1306 1306  
1307 1307  
1308 1308  
1309 -1.
1307 +1.
1310 1310  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1311 1311  
1312 1312  It might about the channels mapping. Please see for detail.