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93	93	* Packet engine up to 256 bytes with CRC
94	94
95	95
	96	+
96	96	== 1.3 Features ==
97	97
98	98	* LoRaWAN Class A & Class C protocol (default Class C)
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105	105	* Support Interrupt uplink (Since hardware version v1.2)
106	106
107	107
	109	+
108	108	== 1.4 Applications ==
109	109
110	110	* Smart Buildings & Home Automation
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115	115	* Smart Factory
116	116
117	117
	120	+
118	118	== 1.5 Firmware Change log ==
119	119
120	120	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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325	325	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
326	326	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
327	327	|AT+CFGDEV|(% style="width:110px" %)(((
	331	+(((
328	328	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	333	+)))
329	329
	335	+(((
330	330	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	337	+)))
331	331
	339	+(((
332	332	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	341	+)))
333	333	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
334	334
335	335
...	...	@@ -1182,19 +1182,23 @@
1182	1182	)))
1183	1183
1184	1184	(((
	1194	+(((
1185	1185	(% 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.
1186	1186	)))
	1197	+)))
1187	1187
1188	1188
1189	1189	== 3.7 Buttons ==
1190	1190
1191	1191
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"]]
	1203	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1204	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1205	+|(% 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**
	1206	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1207	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1197	1197
	1209	+
	1210	+
1198	1198	== 3.8 LEDs ==
1199	1199
1200	1200
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1203	1203	|**PWR**|Always on if there is power
1204	1204	|**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.
1205	1205
	1219	+
	1220	+
1206	1206	= 4. Case Study =
1207	1207
1208	1208	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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1254	1254	)))
1255	1255
1256	1256
	1272	+(((
1257	1257	If device already joined network:
	1274	+)))
1258	1258
1259	1259	(% class="box infomessage" %)
1260	1260	(((
...	...	@@ -1293,10 +1293,12 @@
1293	1293
1294	1294	(% style="color:red" %)**Note:**
1295	1295
	1313	+(((
1296	1296	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1297	1297	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1298	1298	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.
1299	1299	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
	1318	+)))
1300	1300
1301	1301	[[image:1654162478620-421.png]]
1302	1302
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1325	1325
1326	1326	[[image:1654162535040-878.png]]
1327	1327
	1347	+(((
1328	1328	**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]].
	1349	+)))
1329	1329
	1351	+(((
1330	1330	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1353	+)))
1331	1331
	1355	+(((
1332	1332	**Step3: **Open flashloader; choose the correct COM port to update.
	1357	+)))
1333	1333
1334	1334	(((
1335	1335	(((
	1361	+(((
1336	1336	(% 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.
1337	1337	)))
1338	1338	)))
	1365	+)))
1339	1339
1340	1340
1341	1341	[[image:image-20220602175818-12.png]]