<
From version < 57.33 >
edited by Xiaoling
on 2022/06/06 09:27
To version < 57.31 >
edited by Xiaoling
on 2022/06/06 09:23
>
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856 856  |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
857 857  
858 858  
859 +
859 859  == 3.8 LEDs ==
860 860  
861 861  (% border="1" style="background-color:#f7faff; width:500px" %)
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864 864  |**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.
865 865  
866 866  
868 +
867 867  = 4. Case Study =
868 868  
869 869  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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883 883  [[image:1654162368066-342.png]]
884 884  
885 885  
886 -More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
888 +More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
887 887  
888 888  
889 889  == 5.2 Common AT Command Sequence ==
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