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Title

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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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3	3
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5	5
	6	+**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6	6
7	7
8	8
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24	24	(((
25	25	(((
26	26	(((
27		-
28		-
29	29	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
30	30	)))
31	31	)))
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49	49
50	50	(((
51	51	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52		-
53		-
54	54	)))
55	55	)))
56	56	)))
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69	69	** Idle: 32mA@12v
70	70	** 20dB Transmit: 65mA@12v
71	71
72		-
73	73	**Interface for Model:**
74	74
75	75	* RS485
76	76	* Power Input 7~~ 24V DC.
77	77
78		-
79	79	**LoRa Spec:**
80	80
81	81	* Frequency Range:
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97	97	* Automatic RF Sense and CAD with ultra-fast AFC.
98	98	* Packet engine up to 256 bytes with CRC
99	99
100		-
101		-
102	102	== 1.3 Features ==
103	103
104	104	* LoRaWAN Class A & Class C protocol (default Class C)
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110	110	* Support Modbus protocol
111	111	* Support Interrupt uplink (Since hardware version v1.2)
112	112
113		-
114		-
115	115	== 1.4 Applications ==
116	116
117	117	* Smart Buildings & Home Automation
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121	121	* Smart Cities
122	122	* Smart Factory
123	123
124		-
125		-
126	126	== 1.5 Firmware Change log ==
127	127
128	128	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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191	191
192	192	[[image:1653268227651-549.png||height="592" width="720"]]
193	193
194		-
195	195	(((
196	196	The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
197	197	)))
198	198
199	199	(((
200		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
	188	+**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
201	201	)))
202	202
203	203	(((
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207	207
208	208	[[image:1652953462722-299.png]]
209	209
210		-
211	211	(((
212	212	(((
213	213	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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214	214	)))
215	215
216	216	(((
217		-**Add APP EUI in the application.**
	204	+Add APP EUI in the application.
218	218	)))
219	219	)))
220	220
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230	230
231	231	[[image:1652953542269-423.png||height="710" width="723"]]
232	232
	220	+Add APP KEY and DEV EUI
233	233
234		-
235		-**Add APP KEY and DEV EUI**
236		-
237	237	[[image:1652953553383-907.png||height="514" width="724"]]
238	238
239	239
240	240	(((
241		-(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	226	+**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
242	242	)))
243	243
244	244	[[image:1652953568895-172.png||height="232" width="724"]]
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325	325	)))
326	326
327	327
328		-
329		-
330	330	=== 3.3.2 Configure sensors ===
331	331
332	332	(((
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338	338	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
339	339	|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
340	340	|AT+CFGDEV|(% style="width:110px" %)(((
341		-(((
342	342	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343		-)))
344	344
345		-(((
346	346	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347		-)))
348	348
349		-(((
350	350	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351		-)))
352	352	)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
353	353
	331	+
354	354	=== 3.3.3 Configure read commands for each sampling ===
355	355
356	356	(((
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1208	1208	== 3.7 Buttons ==
1209	1209
1210	1210
1211		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1213		-|(% 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**
1214		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1215		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	1189	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
	1190	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
	1191	+|(% 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**
	1192	+|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
	1193	+|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1216	1216
	1195	+
1217	1217	== 3.8 LEDs ==
1218	1218
1219	1219
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1222	1222	|**PWR**|Always on if there is power
1223	1223	|**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.
1224	1224
	1204	+
1225	1225	= 4. Case Study =
1226	1226
1227	1227	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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1273	1273	)))
1274	1274
1275	1275
1276		-(((
1277	1277	If device already joined network:
1278		-)))
1279	1279
1280	1280	(% class="box infomessage" %)
1281	1281	(((
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1314	1314
1315	1315	(% style="color:red" %)**Note:**
1316	1316
1317		-(((
1318	1318	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1319	1319	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1320	1320	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.
1321	1321	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
1322		-)))
1323	1323
1324	1324	[[image:1654162478620-421.png]]
1325	1325
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1348	1348
1349	1349	[[image:1654162535040-878.png]]
1350	1350
1351		-(((
1352	1352	**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]].
1353		-)))
1354	1354
1355		-(((
1356	1356	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1357		-)))
1358	1358
1359		-(((
1360	1360	**Step3: **Open flashloader; choose the correct COM port to update.
1361		-)))
1362	1362
1363	1363	(((
1364	1364	(((
1365		-(((
1366	1366	(% 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.
1367	1367	)))
1368	1368	)))
1369		-)))
1370	1370
1371	1371
1372	1372	[[image:image-20220602175818-12.png]]