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

Last modified by Bei Jinggeng on 2025/01/16 11:36

From version < 60.6 >

edited by Xiaoling
on 2022/06/14 11:13

To version < 58.50 >

edited by Xiaoling
on 2022/06/06 13:46

Change comment: There is no comment for this version

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Title

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--RS485-LN – RS485 to LoRaWAN Converter User Manual
++RS485-LN – RS485 to LoRaWAN Converter

Content

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++**RS485-LN – RS485 to LoRaWAN Converter User Manual**
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  (((
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--
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  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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  ** Idle: 32mA@12v
  ** 20dB Transmit: 65mA@12v
--
--
  **Interface for Model:**
  * RS485
  * Power Input 7~~ 24V DC.
--
--
  **LoRa Spec:**
  * Frequency Range:
@@ -99,9 +99,6 @@
  * Automatic RF Sense and CAD with ultra-fast AFC.
  * Packet engine up to 256 bytes with CRC
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--
--
  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol (default Class C)
@@ -113,9 +113,6 @@
  * Support Modbus protocol
  * Support Interrupt uplink (Since hardware version v1.2)
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--
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  == 1.4 Applications ==
  * Smart Buildings & Home Automation
@@ -125,9 +125,6 @@
  * Smart Cities
  * Smart Factory
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--
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  == 1.5 Firmware Change log ==
  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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  [[image:1653268227651-549.png||height="592" width="720"]]
--
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  The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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--**(% style="color:blue" %)Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
++**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
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  [[image:1652953462722-299.png]]
--
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  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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--**Add APP EUI in the application.**
++Add APP EUI in the application.
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  [[image:1652953542269-423.png||height="710" width="723"]]
++Add APP KEY and DEV EUI
--
--**Add APP KEY and DEV EUI**
--
  [[image:1652953553383-907.png||height="514" width="724"]]
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--**(% style="color:blue" %)Step 2**(%%): Power on RS485-LN 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-LN 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.
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  [[image:1652953568895-172.png||height="232" width="724"]]
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  === 3.3.2 Configure sensors ===
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  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
  |AT+CFGDEV|(% style="width:110px" %)(((
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  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
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  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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  === 3.3.3 Configure read commands for each sampling ===
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  == 3.7 Buttons ==
--(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
--|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
--|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
--|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
--|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
++(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
++|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
++|(% style="width:50px" %)**ACT**|(% style="width:350px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
++|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
++|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
++
  == 3.8 LEDs ==
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  |**PWR**|Always on if there is power
  |**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
++
  = 4. Case Study =
  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]]
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  If device already joined network:
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  (% class="box infomessage" %)
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  (% style="color:red" %)**Note:**
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  (% 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
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  [[image:1654162478620-421.png]]
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  [[image:1654162535040-878.png]]
--(((
  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
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  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
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  **Step3: **Open flashloader; choose the correct COM port to update.
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  (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
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  [[image:image-20220602175818-12.png]]

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