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869	869
870	870	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.
871	871
872		-[[image:1654162355560-817.png]]
	872	+[[image:1654135840598-282.png]]
873	873
874	874
875	875	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:
876	876
877		-[[image:1654162368066-342.png]]
	877	+[[image:1654136105500-922.png]]
878	878
879	879
880	880	More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
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918	918	=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
919	919
920	920
921		-(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
	921	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
922	922
923	923	(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
924	924
925	925	(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
926	926
927		-(% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
	927	+(% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
928	928
929	929	(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
930	930
...	...	@@ -946,7 +946,7 @@
946	946	3. 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.
947	947	4. 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
948	948
949		-[[image:1654162478620-421.png]]
	949	+[[image:1654136435598-589.png]]
950	950
951	951
952	952	= 6. FAQ =
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953	953
954	954	== 6.1 How to upgrade the image? ==
955	955
956		-The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	956	+The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
957	957
958	958	* Support new features
959	959	* For bug fix
960	960	* Change LoRaWAN bands.
961	961
962		-Below shows the hardware connection for how to upload an image to RS485-LN:
	962	+Below shows the hardware connection for how to upload an image to RS485-BL:
963	963
964		-[[image:1654162535040-878.png]]
	964	+[[image:1654136646995-976.png]]
965	965
966	966	**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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