Skip to Content
Last modified by Xiaoling on 2025/04/23 15:57
From version 33.11
edited by Xiaoling
on 2022/06/02 10:10
Change comment: There is no comment for this version
To version 32.1
edited by Xiaoling
on 2022/06/02 09:39
Change comment: Uploaded new attachment "1654133954153-643.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -915,12 +915,13 @@
915 915  
916 916  **AT+MBFUN has only two value:**
917 917  
918 -* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
918 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
919 919  
920 920  AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
921 921  
922 -* **AT+MBFUN=0**: Disable Modbus fast reading.
922 +* AT+MBFUN=0: Disable Modbus fast reading.
923 923  
924 +
924 924  **Example:**
925 925  
926 926  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
... ... @@ -930,139 +930,121 @@
930 930  [[image:1654133913295-597.png]]
931 931  
932 932  
933 -[[image:1654133954153-643.png]]
934 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
934 934  
935 935  
936 -* **Downlink Commands:**
937 +* Downlink Commands:
937 937  
938 -**A9 aa** ~-~-> Same as AT+MBFUN=aa
939 +A9 aa -à Same as AT+MBFUN=aa
939 939  
940 940  
942 +==== RS485 command timeout ====
941 941  
942 -==== **RS485 command timeout** ====
943 -
944 944  Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
945 945  
946 946  Default value: 0, range:  0 ~~ 5 seconds
947 947  
948 948  
949 -* **AT Command:**
949 +* AT Command:
950 950  
951 -(% class="box infomessage" %)
952 -(((
953 -**AT+CMDDLaa=hex(bb cc)**
954 -)))
951 +AT+CMDDLaa=hex(bb cc)
955 955  
956 -**Example:**
953 +Example:
957 957  
958 958  **AT+CMDDL1=1000** to send the open time to 1000ms
959 959  
960 960  
961 -* **Downlink Payload:**
958 +* Downlink Payload:
962 962  
963 963  0x AA aa bb cc
964 964  
965 965  Same as: AT+CMDDLaa=hex(bb cc)
966 966  
967 - **Example:**
964 + Example:
968 968  
969 - **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
966 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
970 970  
971 971  
969 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
972 972  
973 -==== **Uplink payload mode** ====
974 -
975 975  Define to use one uplink or multiple uplinks for the sampling.
976 976  
977 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
973 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
978 978  
979 -* **AT Command:**
975 +* AT Command:
980 980  
981 -(% class="box infomessage" %)
982 -(((
983 -**AT+DATAUP=0**
984 -)))
977 +AT+DATAUP=0
985 985  
986 -(% class="box infomessage" %)
987 -(((
988 -**AT+DATAUP=1**
989 -)))
979 +AT+DATAUP=1
990 990  
991 991  
992 -* **Downlink Payload:**
982 +* Downlink Payload:
993 993  
994 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
984 +0xAD 00   à Same as AT+DATAUP=0
995 995  
996 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
986 +0xAD 01   à Same as AT+DATAUP=1
997 997  
998 998  
989 +==== Manually trigger an Uplink ====
999 999  
1000 -==== **Manually trigger an Uplink** ====
1001 -
1002 1002  Ask device to send an uplink immediately.
1003 1003  
1004 -* **Downlink Payload:**
993 +* Downlink Payload:
1005 1005  
1006 -**0x08 FF**, RS485-BL will immediately send an uplink.
995 +0x08 FF, RS485-BL will immediately send an uplink.
1007 1007  
1008 1008  
998 +==== Clear RS485 Command ====
1009 1009  
1010 -==== **Clear RS485 Command** ====
1011 -
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:**
1003 +* 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
1005 +**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1018 1018  
1007 +Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1008 +
1019 1019  Example screen shot after clear all RS485 commands. 
1020 1020  
1021 1021  
1012 +
1022 1022  The uplink screen shot is:
1023 1023  
1024 -[[image:1654134704555-320.png]]
1015 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1025 1025  
1026 1026  
1027 -* **Downlink Payload:**
1018 +* Downlink Payload:
1028 1028  
1029 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1020 +0x09 aa bb same as AT+CMDEAR=aa,bb
1030 1030  
1031 1031  
1023 +==== 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:**
1027 +* 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 -)))
1031 +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 -)))
1034 +Set UART parity
1052 1052  
1036 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1037 +
1038 +
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 -)))
1041 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1059 1059  
1060 1060  
1061 -* **Downlink Payload:**
1044 +* Downlink Payload:
1062 1062  
1063 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1046 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1064 1064  
1065 -**Example:**
1048 +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
... ... @@ -1072,102 +1072,108 @@
1072 1072  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1073 1073  
1074 1074  
1058 +==== 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:**
1062 +* AT Command:
1081 1081  
1082 -**Example:**
1064 +Example:
1083 1083  
1084 -**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
1066 +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.
1068 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1087 1087  
1088 1088  
1089 -* **LoRaWAN Downlink Command:**
1071 +* LoRaWAN Downlink Command:
1090 1090  
1091 -**07 01 aa bb**  Same as AT+5VT=(aa bb)
1073 +07 01 aa bb  Same as AT+5VT=(aa bb)
1092 1092  
1093 -**07 02 aa bb**  Same as AT+3V3T=(aa bb)
1075 +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 ==
1080 +1.
1081 +11. Buttons
1103 1103  
1083 +|**Button**|**Feature**
1084 +|**RST**|Reboot RS485-BL
1085 +
1086 +1.
1087 +11. +3V3 Output
1088 +
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  
1093 +
1108 1108  The +3V3 output time can be controlled by AT Command.
1109 1109  
1096 +**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  
1100 +
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 ==
1104 +1.
1105 +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  
1111 +
1125 1125  The 5V output time can be controlled by AT Command.
1126 1126  
1114 +**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  
1118 +
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 ==
1124 +1.
1125 +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" %)(((
1127 +|**LEDs**|**Feature**
1128 +|**LED1**|Blink when device transmit a packet.
1129 +
1130 +1.
1131 +11. Switch Jumper
1132 +
1133 +|**Switch Jumper**|**Feature**
1134 +|**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" %)(((
1139 +|**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
1145 ++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.
1147 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1160 1160  
1149 +1. Case Study
1161 1161  
1162 -= 4. Case Study =
1151 +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]]
1153 +[[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 1167  
1168 -= 5. Use AT Command =
1169 1169  
1170 -== 5.1 Access AT Command ==
1158 +1. Use AT Command
1159 +11. Access AT Command
1171 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  
... ... @@ -1184,7 +1184,7 @@
1184 1184  
1185 1185  
1186 1186  
1187 -1.
1176 +1.
1188 1188  11. Common AT Command Sequence
1189 1189  111. Multi-channel ABP mode (Use with SX1301/LG308)
1190 1190  
... ... @@ -1203,8 +1203,8 @@
1203 1203  
1204 1204  ATZ
1205 1205  
1206 -1.
1207 -11.
1195 +1.
1196 +11.
1208 1208  111. Single-channel ABP mode (Use with LG01/LG02)
1209 1209  
1210 1210  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1279,7 +1279,7 @@
1279 1279  [[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]]
1280 1280  
1281 1281  
1282 -1.
1271 +1.
1283 1283  11. How to change the LoRa Frequency Bands/Region?
1284 1284  
1285 1285  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1286,7 +1286,7 @@
1286 1286  
1287 1287  
1288 1288  
1289 -1.
1278 +1.
1290 1290  11. How many RS485-Slave can RS485-BL connects?
1291 1291  
1292 1292  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]].
... ... @@ -1303,7 +1303,7 @@
1303 1303  
1304 1304  
1305 1305  
1306 -1.
1295 +1.
1307 1307  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1308 1308  
1309 1309  It might about the channels mapping. Please see for detail.
1654134704555-320.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -91.4 KB
Content