Changes for page RS485-BL – Waterproof RS485 to LoRaWAN Converter

Last modified by Xiaoling on 2025/04/23 15:57

From 41.21 to 41.20 From 44.18 to 44.17

From version 44.17

edited by Xiaoling
on 2022/06/14 10:11

Change comment: There is no comment for this version

To version 41.21

edited by Xiaoling
on 2022/06/06 11:07

Change comment: There is no comment for this version

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@@ -1,9 +1,13 @@
  (% style="text-align:center" %)
--[[image:1652947681187-144.png||height="404" width="404"]]
++[[image:1652947681187-144.png||height="385" width="385"]]
++**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
++
++
++
  **Table of Contents:**
  {{toc/}}
@@ -90,7 +90,6 @@
  * 127 dB Dynamic Range RSSI.
  * Automatic RF Sense and CAD with ultra-fast AFC.
--
  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol (default Class A)
@@ -102,7 +102,6 @@
  * Support Modbus protocol
  * Support Interrupt uplink
--
  == 1.4 Applications ==
  * Smart Buildings & Home Automation
@@ -112,7 +112,6 @@
  * Smart Cities
  * Smart Factory
--
  == 1.5 Firmware Change log ==
  [[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
@@ -196,7 +196,6 @@
  [[image:1652953414711-647.png||height="337" width="723"]]
--
  (((
  The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
  )))
@@ -206,7 +206,7 @@
  )))
  (((
--(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-BL.
++**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
  )))
  (((
@@ -215,13 +215,12 @@
  [[image:1652953462722-299.png]]
--
  (((
  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
  )))
  (((
--**Add APP EUI in the application.**
++Add APP EUI in the application.
  )))
@@ -233,20 +233,17 @@
  [[image:image-20220519174512-4.png]]
--
  You can also choose to create the device manually.
  [[image:1652953542269-423.png||height="710" width="723"]]
--
  Add APP KEY and DEV EUI
  [[image:1652953553383-907.png||height="514" width="724"]]
--
  (((
--(% style="color:blue" %)**Step 2**(%%): Power on RS485-BL and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
++**Step 2**: Power on RS485-BL and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
  )))
  [[image:1652953568895-172.png||height="232" width="724"]]
@@ -287,28 +287,28 @@
  )))
  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
--|=(% style="width: 80px;" %)(((
++|=(% style="width: 120px;" %)(((
  (((
  **AT Commands**
  )))
--)))|=(% style="width: 210px;" %)(((
++)))|=(% style="width: 190px;" %)(((
  (((
  **Description**
  )))
--)))|=(% style="width: 210px;" %)(((
++)))|=(% style="width: 190px;" %)(((
  (((
  **Example**
  )))
  )))
--|(% style="width:80px" %)(((
++|(% style="width:120px" %)(((
  (((
  AT+BAUDR
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  Set the baud rate (for RS485 connection). Default Value is: 9600.
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  (((
  AT+BAUDR=9600
@@ -321,11 +321,11 @@
  )))
  )))
  )))
--|(% style="width:80px" %)(((
++|(% style="width:120px" %)(((
  (((
  AT+PARITY
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  (((
  Set UART parity (for RS485 connection)
@@ -337,7 +337,7 @@
  Default Value is: no parity.
  )))
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  (((
  AT+PARITY=0
@@ -350,11 +350,11 @@
  )))
  )))
  )))
--|(% style="width:80px" %)(((
++|(% style="width:120px" %)(((
  (((
  AT+STOPBIT
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  (((
  Set serial stopbit (for RS485 connection)
@@ -366,7 +366,7 @@
  Default Value is: 1bit.
  )))
  )))
--)))|(% style="width:210px" %)(((
++)))|(% style="width:190px" %)(((
  (((
  (((
  AT+STOPBIT=0 for 1bit
@@ -399,20 +399,14 @@
  )))
  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
--|=(% style="width: 80px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 210px;" %)**Example**
--|AT+CFGDEV|(% style="width:80px" %)(((
--(((
++|=(% style="width: 120px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
++|AT+CFGDEV|(% style="width:120px" %)(((
  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
--)))
--(((
  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
--)))
--(((
  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
--)))
--)))|(% style="width:210px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
++)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]].
@@ -438,22 +438,18 @@
  (((
  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
--
--
  )))
  (((
--(% style="color:blue" %)**Command from RS485-BL to Sensor:**
++**Command from RS485-BL to Sensor:**
  )))
  (((
  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
--
--
  )))
  (((
--(% style="color:blue" %)**Handle return from sensors to RS485-BL**:
++**Handle return from sensors to RS485-BL**:
  )))
  (((
@@ -461,17 +461,15 @@
  )))
  * (((
--(% style="color:blue" %)**AT+DATACUT**
++**AT+DATACUT**
  )))
  (((
  When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
--
--
  )))
  * (((
--(% style="color:blue" %)**AT+SEARCH**
++**AT+SEARCH**
  )))
  (((
@@ -479,9 +479,7 @@
  )))
  (((
--
--
--(% style="color:blue" %)**Define wait timeout:**
++**Define wait timeout:**
  )))
  (((
@@ -493,8 +493,6 @@
  )))
  (((
--
--
  **Examples:**
  )))
@@ -552,8 +552,6 @@
  )))
  (((
--
--
  **Examples:**
  )))
@@ -571,8 +571,6 @@
  (((
  [[image:1653271044481-711.png]]
--
--
  )))
  (((
@@ -613,8 +613,6 @@
  )))
  (((
--
--
  **Examples:**
  )))
@@ -928,6 +928,8 @@
  (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-BL.  User can see these commands below:
  )))
++
++
  === 3.5.1 Common Commands: ===
  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
@@ -963,101 +963,53 @@
  ==== **RS485 Debug Command (AT+CFGDEV)** ====
--(((
  This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
--)))
--* (((
--**AT Command**
--)))
++* **AT Command**
  (% class="box infomessage" %)
  (((
--(((
  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
  )))
--)))
--(((
  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
--)))
--(((
--
--)))
--* (((
--**Downlink Payload**
--)))
++* **Downlink Payload**
--(((
  Format: A8 MM NN XX XX XX XX YY
--)))
--(((
  Where:
--)))
--* (((
--MM: 1: add CRC-16/MODBUS ; 0: no CRC
--)))
--* (((
--NN: The length of RS485 command
--)))
--* (((
--XX XX XX XX: RS485 command total NN bytes
--)))
--* (((
--YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
--)))
++* MM: 1: add CRC-16/MODBUS ; 0: no CRC
++* NN: The length of RS485 command
++* XX XX XX XX: RS485 command total NN bytes
++* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
--(((
  **Example 1:**
--)))
--(((
  To connect a Modbus Alarm with below commands.
--)))
--* (((
--The command to active alarm is: 0A 05 00 04 00 01 **4C B0**. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
--)))
++* The command to active alarm is: 0A 05 00 04 00 01 **4C B0**. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
--* (((
--The command to deactivate alarm is: 0A 05 00 04 00 00 **8D 70**. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
--)))
++* The command to deactivate alarm is: 0A 05 00 04 00 00 **8D 70**. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
--(((
  So if user want to use downlink command to control to RS485 Alarm, he can use:
--)))
--(((
  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
--)))
--(((
  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
--)))
  (((
  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
  )))
--(((
--
--)))
--(((
  **Example 2:**
--)))
--(((
  Check TTL Sensor return:
--)))
--(((
  [[image:1654132684752-193.png]]
--)))
@@ -1086,121 +1086,62 @@
  ==== **Set RS485 Sampling Commands** ====
--(((
  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
--)))
--(((
  These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
--)))
--(((
--
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
  (% class="box infomessage" %)
  (((
--(((
  **AT+COMMANDx: Configure RS485 read command to sensor.**
  )))
--)))
  (% class="box infomessage" %)
  (((
--(((
  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
  )))
--)))
  (% class="box infomessage" %)
  (((
--(((
  **AT+SEARCHx: Configure search command**
  )))
--)))
--(((
--
--)))
--* (((
--**Downlink Payload:**
--)))
++* **Downlink Payload:**
--(((
  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
--)))
--(((
  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
--)))
--(((
  Format: AF MM NN LL XX XX XX XX YY
--)))
--(((
  Where:
--)))
--* (((
--MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
--)))
--* (((
--NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
--)))
--* (((
--LL:   The length of AT+COMMAND or AT+DATACUT command
--)))
--* (((
--XX XX XX XX: AT+COMMAND or AT+DATACUT command
--)))
--* (((
--YY:   If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
--)))
++* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
++* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
++* LL:   The length of AT+COMMAND or AT+DATACUT command
++* XX XX XX XX: AT+COMMAND or AT+DATACUT command
++* YY:   If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
--(((
  **Example:**
--)))
--(((
  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
--)))
--(((
  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
--)))
--(((
  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
--)))
--(((
--
--)))
--(((
  **0xAB** downlink command can be used for set AT+SEARCHx
--)))
--(((
  **Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
--)))
--* (((
--AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
--)))
--* (((
--AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
--)))
++* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
++* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
--(((
  **AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
--)))
@@ -1207,47 +1207,24 @@
  ==== **Fast command to handle MODBUS device** ====
--(((
  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
--)))
--(((
  This command is valid since v1.3 firmware version
--)))
--(((
--
--)))
--(((
  **AT+MBFUN has only two value:**
--)))
--* (((
--**AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
--)))
++* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
--(((
  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.
--)))
--* (((
--**AT+MBFUN=0**: Disable Modbus fast reading.
--)))
++* **AT+MBFUN=0**: Disable Modbus fast reading.
--(((
  **Example:**
--)))
--* (((
--AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
--)))
--* (((
--AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
--)))
--* (((
--AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
--)))
++* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
++* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
++* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
  [[image:1654133913295-597.png]]
@@ -1255,13 +1255,9 @@
  [[image:1654133954153-643.png]]
--* (((
--**Downlink Commands:**
--)))
++* **Downlink Commands:**
--(((
  **A9 aa** ~-~-> Same as AT+MBFUN=aa
--)))
@@ -1268,60 +1268,32 @@
  ==== **RS485 command timeout** ====
--(((
  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.
--)))
--(((
  Default value: 0, range:  0 ~~ 5 seconds
--)))
--(((
--
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
  (% class="box infomessage" %)
  (((
--(((
  **AT+CMDDLaa=hex(bb cc)**
  )))
--)))
--(((
  **Example:**
--)))
--(((
  **AT+CMDDL1=1000** to send the open time to 1000ms
--)))
--(((
--
--)))
--* (((
--**Downlink Payload:**
--)))
++* **Downlink Payload:**
--(((
 x AA aa bb cc
--)))
--(((
  Same as: AT+CMDDLaa=hex(bb cc)
--)))
--(((
     **Example:**
--)))
--(((
     **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
--)))
@@ -1328,47 +1328,28 @@
  ==== **Uplink payload mode** ====
--(((
  Define to use one uplink or multiple uplinks for the sampling.
--)))
--(((
  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
  (% class="box infomessage" %)
  (((
--(((
  **AT+DATAUP=0**
  )))
--)))
  (% class="box infomessage" %)
  (((
--(((
  **AT+DATAUP=1**
  )))
--)))
--(((
--
--)))
--* (((
--**Downlink Payload:**
--)))
++* **Downlink Payload:**
--(((
  **0xAD 00**   **~-~->** Same as AT+DATAUP=0
--)))
--(((
  **0xAD 01**   **~-~->** Same as AT+DATAUP=1
--)))
@@ -1386,49 +1386,26 @@
  ==== **Clear RS485 Command** ====
--(((
  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
--)))
--(((
--
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
  (((
  (% 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
  )))
--(((
  Example screen shot after clear all RS485 commands.
--)))
--(((
--
--)))
--(((
  The uplink screen shot is:
--)))
--(((
  [[image:1654134704555-320.png]]
--)))
--(((
--
--)))
--* (((
--**Downlink Payload:**
--)))
++* **Downlink Payload:**
--(((
  **0x09 aa bb**  same as AT+CMDEAR=aa,bb
--)))
@@ -1435,59 +1435,44 @@
  ==== **Set Serial Communication Parameters** ====
--(((
  Set the Rs485 serial communication parameters:
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
--(((
  Set Baud Rate:
--)))
  (% class="box infomessage" %)
  (((
--(((
  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
++)))
  Set UART Parity
++
++(% class="box infomessage" %)
++(((
  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
++)))
  Set STOPBIT
++(% class="box infomessage" %)
++(((
  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
  )))
--)))
--* (((
--**Downlink Payload:**
--)))
++* **Downlink Payload:**
--(((
  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
--)))
--(((
  **Example:**
--)))
--* (((
--A7 01 00 60   same as AT+BAUDR=9600
--)))
--* (((
--A7 01 04 80     same as AT+BAUDR=115200
--)))
++* A7 01 00 60   same as AT+BAUDR=9600
++* A7 01 04 80     same as AT+BAUDR=115200
--(((
  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
--)))
--(((
  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
--)))
@@ -1494,41 +1494,22 @@
  ==== **Control output power duration** ====
--(((
  User can set the output power duration before each sampling.
--)))
--* (((
--**AT Command:**
--)))
++* **AT Command:**
--(((
  **Example:**
--)))
--(((
  **AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
--)))
--(((
  **AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
--)))
--(((
--
--)))
--* (((
--**LoRaWAN Downlink Command:**
--)))
++* **LoRaWAN Downlink Command:**
--(((
  **07 01 aa bb**  Same as AT+5VT=(aa bb)
--)))
--(((
  **07 02 aa bb**  Same as AT+3V3T=(aa bb)
--)))
@@ -1538,77 +1538,42 @@
  |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
  |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
++
++
  == 3.7 +3V3 Output ==
--(((
  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
--)))
--(((
  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.
--)))
--(((
  The +3V3 output time can be controlled by AT Command.
--)))
--(((
--
--)))
--(((
  (% style="color:#037691" %)**AT+3V3T=1000**
--)))
--(((
--
--)))
--(((
  Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
--)))
--(((
  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
--)))
  == 3.8 +5V Output ==
--(((
  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
--)))
--(((
  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.
--)))
--(((
  The 5V output time can be controlled by AT Command.
--)))
--(((
--
--)))
--(((
  (% style="color:#037691" %)**AT+5VT=1000**
--)))
--(((
--
--)))
--(((
  Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
--)))
--(((
  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.
--)))
--
  == 3.9 LEDs ==
  (% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
@@ -1615,22 +1615,26 @@
  |=**LEDs**|=(% style="width: 274px;" %)**Feature**
  |**LED1**|(% style="width:274px" %)Blink when device transmit a packet.
++
++
  == 3.10 Switch Jumper ==
--(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:463px" %)
--|=(% style="width: 123px;" %)**Switch Jumper**|=(% style="width: 336px;" %)**Feature**
--|(% style="width:123px" %)**SW1**|(% style="width:336px" %)ISP position: Upgrade firmware via UART
++(% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
++|=(% style="width: 124px;" %)**Switch Jumper**|=(% style="width: 388px;" %)**Feature**
++|(% style="width:124px" %)**SW1**|(% style="width:388px" %)(((
++ISP position: Upgrade firmware via UART
++
  Flash position: Configure device, check running status.
--|(% style="width:123px" %)**SW2**|(% style="width:336px" %)5V position: set to compatible with 5v I/O.
++)))
++|(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
++5V position: set to compatible with 5v I/O.
++
 .3v position: set to compatible with 3.3v I/O.,
++)))
--(((
  **+3.3V**: is always ON
--)))
--(((
  **+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
--)))
  = 4. Case Study =
@@ -1642,23 +1642,17 @@
  == 5.1 Access AT Command ==
--(((
  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.
--)))
  [[image:1654135840598-282.png]]
--(((
  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:
--)))
  [[image:1654136105500-922.png]]
--(((
  More detail AT Command manual can be found at [[AT Command Manual>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]]
--)))
  == 5.2 Common AT Command Sequence ==
@@ -1670,14 +1670,20 @@
  (% class="box infomessage" %)
  (((
  **AT+FDR**
++)))
++
++(% class="box infomessage" %)
++(((
  **AT+NJM=0**
++)))
++
++(% class="box infomessage" %)
++(((
  **ATZ**
  )))
--(((
  If device already joined network:
--)))
  (% class="box infomessage" %)
  (((
@@ -1716,12 +1716,10 @@
  (% style="color:red" %)**Note:**
--(((
  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
 . Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
 . 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.
 . The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
--)))
  [[image:1654136435598-589.png]]
@@ -1730,23 +1730,13 @@
  == 6.1 How to upgrade the image? ==
--(((
  The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
--)))
--* (((
--Support new features
--)))
--* (((
--For bug fix
--)))
--* (((
--Change LoRaWAN bands.
--)))
++* Support new features
++* For bug fix
++* Change LoRaWAN bands.
--(((
  Below shows the hardware connection for how to upload an image to RS485-BL:
--)))
  [[image:1654136646995-976.png]]