Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

Last modified by Karry Zhuang on 2025/03/06 16:34

From version < 15.5 >

edited by Xiaoling
on 2022/05/19 17:52

To version < 19.3 >

edited by Xiaoling
on 2022/05/23 08:55

Change comment: There is no comment for this version

Raw
Rendered

Summary

Page properties (2 modified, 0 added, 0 removed)
Attachments (0 modified, 3 added, 0 removed)

Details

Page properties

Title

@@ -1,1 +1,1 @@
--RS485-BL – Waterproof RS485 to LoRaWAN Converter
++RS485-LN – RS485 to LoRaWAN Converter

Content

@@ -1,12 +1,11 @@
  (% style="text-align:center" %)
--[[image:1652947681187-144.png||height="385" width="385"]]
++[[image:1653266934636-343.png||height="385" width="385"]]
++**RS485-LN – RS485 to LoRaWAN Converter User Manual**
--**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
--
  **Table of Contents:**
@@ -15,62 +15,44 @@
  = 1.Introduction =
--== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
++== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
  (((
--
--)))
--
  (((
--The Dragino RS485-BL is a **RS485 / UART to LoRaWAN Converter** for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
++The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
  )))
  (((
--RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
++RS485-LN allows user to monitor / control RS485 devices and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
  )))
  (((
--RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
++For data uplink, RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
  )))
  (((
--RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
++For data downlink, RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
  )))
--
--(((
--For data uplink, RS485-BL sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-BL will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.
  )))
--(((
--For data downlink, RS485-BL runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-BL will forward the commands from LoRaWAN server to RS485 devices.
--)))
++[[image:1653267211009-519.png||height="419" width="724"]]
--(((
--Each RS485-BL pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
--)))
--
--[[image:1652953304999-717.png||height="424" width="733"]]
--
  == 1.2 Specifications ==
  **Hardware System:**
  * STM32L072CZT6 MCU
--* SX1276/78 Wireless Chip
++* SX1276/78 Wireless Chip
  * Power Consumption (exclude RS485 device):
--** Idle: 6uA@3.3v
++** Idle: 32mA@12v
--*
--** 20dB Transmit: 130mA@3.3v
++*
++** 20dB Transmit: 65mA@12v
  **Interface for Model:**
--* 1 x RS485 Interface
--* 1 x TTL Serial , 3.3v or 5v.
--* 1 x I2C Interface, 3.3v or 5v.
--* 1 x one wire interface
--* 1 x Interrupt Interface
--* 1 x Controllable 5V output, max
++* RS485
++* Power Input 7~~ 24V DC.
  **LoRa Spec:**
@@ -79,16 +79,19 @@
  ** Band 2 (LF): 410 ~~ 528 Mhz
  * 168 dB maximum link budget.
  * +20 dBm - 100 mW constant RF output vs.
++* +14 dBm high efficiency PA.
  * Programmable bit rate up to 300 kbps.
  * High sensitivity: down to -148 dBm.
  * Bullet-proof front end: IIP3 = -12.5 dBm.
  * Excellent blocking immunity.
++* Low RX current of 10.3 mA, 200 nA register retention.
  * Fully integrated synthesizer with a resolution of 61 Hz.
--* LoRa modulation.
++* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
  * Built-in bit synchronizer for clock recovery.
  * Preamble detection.
  * 127 dB Dynamic Range RSSI.
--* Automatic RF Sense and CAD with ultra-fast AFC.
++* Automatic RF Sense and CAD with ultra-fast AFC.
++* Packet engine up to 256 bytes with CRC.
  == 1.3 Features ==
@@ -303,87 +303,101 @@
  )))
  )))
++=== 3.3.2 Configure sensors ===
++(((
++Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**.
++)))
++(((
++When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling.
++)))
--1.
--11.
--111. Configure sensors
--
--Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
--
--
--When user issue an AT+CFGDEV command, Each AT+CFGDEV equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling.
--
--|**AT Commands**|**Description**|**Example**
--|AT+CFGDEV|(((
++(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
++|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
++|AT+CFGDEV|(% style="width:418px" %)(((
  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,m
++AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
--m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
--)))|AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
++mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
++)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
++=== 3.3.3 Configure read commands for each sampling ===
--
--
--
--1.
--11.
--111. Configure read commands for each sampling
--
++(((
  RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
++)))
--
++(((
  During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
++)))
--
++(((
  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
++)))
--
++(((
  This section describes how to achieve above goals.
++)))
--
++(((
  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
++)))
--
++(((
  **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.
++)))
--
++(((
  **Handle return from sensors to RS485-BL**:
++)))
++(((
  After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
++)))
++* (((
++**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.
++)))
++* (((
++**AT+SEARCH**
++)))
--* **AT+SEARCH**
--
++(((
  When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
++)))
--
++(((
  **Define wait timeout:**
++)))
++(((
  Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
++)))
--
++(((
  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
++)))
--
  **Examples:**
  Below are examples for the how above AT Commands works.
--
  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
++(% border="1" class="table-bordered" %)
  |(((
  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
@@ -396,9 +396,9 @@
  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
--
  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
++(% border="1" class="table-bordered" %)
  |(((
  **AT+SEARCHx=aa,xx xx xx xx xx**
@@ -416,7 +416,7 @@
  The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
--[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
++[[image:1652954654347-831.png]]
 . For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
@@ -477,7 +477,7 @@
 .
--11.
++11.
 . Compose the uplink payload
  Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
@@ -541,8 +541,8 @@
--1.
--11.
++1.
++11.
 . Uplink on demand
  Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
@@ -555,8 +555,8 @@
--1.
--11.
++1.
++11.
 . Uplink on Interrupt
  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
@@ -570,7 +570,7 @@
  AT+INTMOD=3  Interrupt trigger by rising edge.
--1.
++1.
 . Uplink Payload
  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
@@ -632,15 +632,15 @@
  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
--1.
--11.
++1.
++11.
 . 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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
--1.
--11.
++1.
++11.
 . Sensor related commands:
  ==== Choose Device Type (RS485 or TTL) ====
@@ -946,13 +946,13 @@
--1.
++1.
 . Buttons
  |**Button**|**Feature**
  |**RST**|Reboot RS485-BL
--1.
++1.
 . +3V3 Output
  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
@@ -970,7 +970,7 @@
  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
--1.
++1.
 . +5V Output
  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
@@ -990,13 +990,13 @@
--1.
++1.
 . LEDs
  |**LEDs**|**Feature**
  |**LED1**|Blink when device transmit a packet.
--1.
++1.
 . Switch Jumper
  |**Switch Jumper**|**Feature**
@@ -1042,7 +1042,7 @@
--1.
++1.
 . Common AT Command Sequence
 . Multi-channel ABP mode (Use with SX1301/LG308)
@@ -1061,8 +1061,8 @@
  ATZ
--1.
--11.
++1.
++11.
 . Single-channel ABP mode (Use with LG01/LG02)
  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
@@ -1137,7 +1137,7 @@
  [[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]]
--1.
++1.
 . How to change the LoRa Frequency Bands/Region?
  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
@@ -1144,7 +1144,7 @@
--1.
++1.
 . How many RS485-Slave can RS485-BL connects?
  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]].
@@ -1161,7 +1161,7 @@
--1.
++1.
 . Why I can’t join TTN V3 in US915 /AU915 bands?
  It might about the channels mapping. Please see for detail.

1652954654347-831.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+138.7 KB

Content

1653266934636-343.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+176.5 KB

Content

1653267211009-519.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+138.7 KB

Content

Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

Summary

Details

Applications

Navigation