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92	92	* Automatic RF Sense and CAD with ultra-fast AFC.
93	93	* Packet engine up to 256 bytes with CRC
94	94
	95	+
	96	+
95	95	== 1.3 Features ==
96	96
97	97	* LoRaWAN Class A & Class C protocol (default Class C)
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103	103	* Support Modbus protocol
104	104	* Support Interrupt uplink (Since hardware version v1.2)
105	105
	108	+
	109	+
106	106	== 1.4 Applications ==
107	107
108	108	* Smart Buildings & Home Automation
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112	112	* Smart Cities
113	113	* Smart Factory
114	114
	119	+
	120	+
115	115	== 1.5 Firmware Change log ==
116	116
117	117	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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310	310	)))
311	311
312	312
	319	+
313	313	=== 3.3.2 Configure sensors ===
314	314
315	315	(((
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321	321	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322	322	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323	323	|AT+CFGDEV|(% style="width:110px" %)(((
	331	+(((
324	324	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	333	+)))
325	325
	335	+(((
326	326	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	337	+)))
327	327
	339	+(((
328	328	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	341	+)))
329	329	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
330	330
331	331
	345	+
332	332	=== 3.3.3 Configure read commands for each sampling ===
333	333
334	334	(((
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1177	1177	)))
1178	1178
1179	1179	(((
	1194	+(((
1180	1180	(% 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.
1181	1181	)))
	1197	+)))
1182	1182
1183	1183
1184	1184	== 3.7 Buttons ==
1185	1185
1186	1186
1187		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1188		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1189		-|(% 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**
1190		-|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1191		-|(% 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"]]
1192	1192
1193	1193
	1210	+
1194	1194	== 3.8 LEDs ==
1195	1195
1196	1196
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1250	1250	)))
1251	1251
1252	1252
	1270	+(((
1253	1253	If device already joined network:
	1272	+)))
1254	1254
1255	1255	(% class="box infomessage" %)
1256	1256	(((
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1289	1289
1290	1290	(% style="color:red" %)**Note:**
1291	1291
	1311	+(((
1292	1292	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1293	1293	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1294	1294	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.
1295	1295	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
	1316	+)))
1296	1296
1297	1297	[[image:1654162478620-421.png]]
1298	1298
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1321	1321
1322	1322	[[image:1654162535040-878.png]]
1323	1323
	1345	+(((
1324	1324	**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]].
	1347	+)))
1325	1325
	1349	+(((
1326	1326	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1351	+)))
1327	1327
	1353	+(((
1328	1328	**Step3: **Open flashloader; choose the correct COM port to update.
	1355	+)))
1329	1329
1330	1330	(((
1331	1331	(((
	1359	+(((
1332	1332	(% 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.
1333	1333	)))
1334	1334	)))
	1363	+)))
1335	1335
1336	1336
1337	1337	[[image:image-20220602175818-12.png]]