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234	234	(((
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236	236	There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
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240	240	(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
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1178	1178	== 3.7 Buttons ==
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1180	1180
1181		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1182		-|=(% style="width: 30px;" %)**Button**|=(% style="width: 355px;" %)**Feature**
1183		-|=(% style="width: 30px;" %)**ACT**|(% style="width:355px" %)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**
1184		-|=(% style="width: 30px;" %)**RST**|(% style="width:355px" %)Reboot RS485
1185		-|=(% style="width: 30px;" %)**PRO**|(% style="width:355px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	1185	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
	1186	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
	1187	+|(% 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**
	1188	+|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
	1189	+|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1187		-
1188		-
1189	1189	== 3.8 LEDs ==
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1191	1191	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1192		-|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1193		-|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1194		-|(% style="width:30px" %)**SYS**|=(% style="width: 400px;" %)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.
	1195	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1196	+|**PWR**|Always on if there is power
	1197	+|**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.
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1197		-
1198	1198	= 4. Case Study =
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1200	1200	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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1297	1297
1298	1298	== 6.1 How to upgrade the image? ==
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1300	1300	The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
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1301	1301
1302		-* Support new features
1303		-* For bug fix
1304		-* Change LoRaWAN bands.
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	1307	+Support new features
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	1309	+* (((
	1310	+For bug fix
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	1312	+* (((
	1313	+Change LoRaWAN bands.
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1306	1306	Below shows the hardware connection for how to upload an image to RS485-LN:
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1308	1308	[[image:1654162535040-878.png]]
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1314	1314	**Step3: **Open flashloader; choose the correct COM port to update.
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1317	1317	(% 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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1321	1321	[[image:image-20220602175818-12.png]]