Skip to Content
Last modified by Xiaoling on 2025/04/23 15:57
From version 33.5
edited by Xiaoling
on 2022/06/02 10:01
Change comment: There is no comment for this version
To version 35.1
edited by Xiaoling
on 2022/06/02 10:15
Change comment: Uploaded new attachment "1654136105500-922.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -1099,7 +1099,6 @@
1099 1099  |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1100 1100  |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
1101 1101  
1102 -
1103 1103  == 3.7 +3V3 Output ==
1104 1104  
1105 1105  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -1123,56 +1123,55 @@
1123 1123  
1124 1124  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. 
1125 1125  
1126 -
1127 1127  The 5V output time can be controlled by AT Command.
1128 1128  
1127 +
1129 1129  (% style="color:#037691" %)**AT+5VT=1000**
1130 1130  
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  
1133 -
1134 1134  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.
1135 1135  
1136 1136  
1137 -
1138 1138  == 3.9 LEDs ==
1139 1139  
1140 -|**LEDs**|**Feature**
1141 -|**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.
1142 1142  
1143 1143  == 3.10 Switch Jumper ==
1144 1144  
1145 -|**Switch Jumper**|**Feature**
1146 -|**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" %)(((
1147 1147  ISP position: Upgrade firmware via UART
1148 1148  
1149 1149  Flash position: Configure device, check running status.
1150 1150  )))
1151 -|**SW2**|(((
1151 +|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
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
1157 +**+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.
1159 +**+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1160 1160  
1161 -1. Case Study
1162 1162  
1163 -User can check this URL for some case studies.
1162 += 4. Case Study =
1164 1164  
1165 -[[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]]
1166 1166  
1167 1167  
1167 += 5. Use AT Command =
1168 1168  
1169 +== 5.1 Access AT Command ==
1169 1169  
1170 -1. Use AT Command
1171 -11. Access AT Command
1172 -
1173 1173  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.
1174 1174  
1175 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1173 +[[image:1654135840598-282.png]]
1176 1176  
1177 1177  
1178 1178  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:
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