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41	41
42	42	== 1.2 Specifications ==
43	43
	44	+
44	44	**Hardware System:**
45	45
46	46	* STM32L072CZT6 MCU
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75	75	* Automatic RF Sense and CAD with ultra-fast AFC.
76	76	* Packet engine up to 256 bytes with CRC.
77	77
	79	+
	80	+
78	78	== 1.3 Features ==
79	79
80	80	* LoRaWAN Class A & Class C protocol (default Class C)
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86	86	* Support Modbus protocol
87	87	* Support Interrupt uplink (Since hardware version v1.2)
88	88
	92	+
	93	+
89	89	== 1.4 Applications ==
90	90
91	91	* Smart Buildings & Home Automation
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95	95	* Smart Cities
96	96	* Smart Factory
97	97
	103	+
	104	+
98	98	== 1.5 Firmware Change log ==
99	99
100	100	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
101	101
	109	+
102	102	== 1.6 Hardware Change log ==
103	103
104	104	(((
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106	106	v1.2: Add External Interrupt Pin.
107	107
108	108	v1.0: Release
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	118	+
109	109	)))
110	110	)))
111	111
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122	122	)))
123	123
124	124	[[image:1653268091319-405.png]]
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	136	+
125	125	)))
126	126
127	127	= 3. Operation Mode =
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130	130
131	131	(((
132	132	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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	146	+
133	133	)))
134	134
135	135	== 3.2 Example to join LoRaWAN network ==
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138	138
139	139	[[image:1653268155545-638.png||height="334" width="724"]]
140	140
	155	+
141	141	(((
	157	+(((
142	142	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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143	143
	161	+(((
144	144	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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145	145
146	146	[[image:1653268227651-549.png||height="592" width="720"]]
147	147
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193	193
194	194	[[image:1652953568895-172.png||height="232" width="724"]]
195	195
	215	+
196	196	== 3.3 Configure Commands to read data ==
197	197
198	198	(((
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202	202
203	203	(((
204	204	(% 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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	226	+
205	205	)))
206	206	)))
207	207
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209	209
210	210	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
211	211
212		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
213		-|(((
	234	+(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
	235	+|(% style="width:128px" %)(((
214	214	**AT Commands**
215		-)))|(% style="width:285px" %)(((
	237	+)))|(% style="width:305px" %)(((
216	216	**Description**
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	239	+)))|(% style="width:346px" %)(((
218	218	**Example**
219	219	)))
220		-|(((
	242	+|(% style="width:128px" %)(((
221	221	AT+BAUDR
222		-)))|(% style="width:285px" %)(((
	244	+)))|(% style="width:305px" %)(((
223	223	Set the baud rate (for RS485 connection). Default Value is: 9600.
224		-)))|(% style="width:347px" %)(((
	246	+)))|(% style="width:346px" %)(((
225	225	(((
226	226	AT+BAUDR=9600
227	227	)))
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230	230	Options: (1200,2400,4800,14400,19200,115200)
231	231	)))
232	232	)))
233		-|(((
	255	+|(% style="width:128px" %)(((
234	234	AT+PARITY
235		-)))|(% style="width:285px" %)(((
	257	+)))|(% style="width:305px" %)(((
236	236	Set UART parity (for RS485 connection)
237		-)))|(% style="width:347px" %)(((
	259	+)))|(% style="width:346px" %)(((
238	238	(((
239	239	AT+PARITY=0
240	240	)))
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243	243	Option: 0: no parity, 1: odd parity, 2: even parity
244	244	)))
245	245	)))
246		-|(((
	268	+|(% style="width:128px" %)(((
247	247	AT+STOPBIT
248		-)))|(% style="width:285px" %)(((
	270	+)))|(% style="width:305px" %)(((
249	249	(((
250	250	Set serial stopbit (for RS485 connection)
251	251	)))
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253	253	(((
254	254
255	255	)))
256		-)))|(% style="width:347px" %)(((
	278	+)))|(% style="width:346px" %)(((
257	257	(((
258	258	AT+STOPBIT=0 for 1bit
259	259	)))
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267	267	)))
268	268	)))
269	269
	292	+
270	270	=== 3.3.2 Configure sensors ===
271	271
272	272	(((