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

Content

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	6	+**RS485-LN – RS485 to LoRaWAN Converter User Manual**
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312	312	)))
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	316	+
315	315	=== 3.3.2 Configure sensors ===
316	316
317	317	(((
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323	323	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
324	324	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
325	325	|AT+CFGDEV|(% style="width:110px" %)(((
326		-(((
327	327	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
328		-)))
329	329
330		-(((
331	331	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
332		-)))
333	333
334		-(((
335	335	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
336		-)))
337	337	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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339	339
	336	+
340	340	=== 3.3.3 Configure read commands for each sampling ===
341	341
342	342	(((
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1185	1185	)))
1186	1186
1187	1187	(((
1188		-(((
1189	1189	(% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
1190	1190	)))
1191		-)))
1192	1192
1193	1193
1194	1194	== 3.7 Buttons ==
1195	1195
1196	1196
1197		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1198		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1199		-|(% 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**
1200		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1201		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	1192	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
	1193	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
	1194	+|(% 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**
	1195	+|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
	1196	+|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1202	1202
1203		-
1204	1204	== 3.8 LEDs ==
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1206	1206
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1209	1209	|**PWR**|Always on if there is power
1210	1210	|**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.
1211	1211
1212		-
1213	1213	= 4. Case Study =
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1215	1215	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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1261	1261	)))
1262	1262
1263	1263
1264		-(((
1265	1265	If device already joined network:
1266		-)))
1267	1267
1268	1268	(% class="box infomessage" %)
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1302	1302
1303	1303	(% style="color:red" %)**Note:**
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1305		-(((
1306	1306	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1307	1307	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1308	1308	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.
1309	1309	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
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1311	1311
1312	1312	[[image:1654162478620-421.png]]
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1336	1336
1337	1337	[[image:1654162535040-878.png]]
1338	1338
1339		-(((
1340	1340	**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]].
1341		-)))
1342	1342
1343		-(((
1344	1344	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1345		-)))
1346	1346
1347		-(((
1348	1348	**Step3: **Open flashloader; choose the correct COM port to update.
1349		-)))
1350	1350
1351	1351	(((
1352	1352	(((
1353		-(((
1354	1354	(% 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.
1355	1355	)))
1356	1356	)))
1357		-)))
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1359	1359
1360	1360	[[image:image-20220602175818-12.png]]