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1		-**~ Contents：**
	1	+**~ Table of Contents：**
2	2
3	3	{{toc/}}
4	4
5	5
6		-= 1. Introduction =
	6	+= 1.  Introduction =
7	7
	8	+
8	8	Dragino LoRa/LoRaWAN gateway support MQTT forwarding. It can forward the sensor data from LoRa network to MQTT server , and vice verse.
9	9
10		-== 1.1 Support Devices ==
11	11
	12	+== 1.1  Support Devices ==
	13	+
	14	+
12	12	This MQTT forward instruction is for below devices:
13	13
14		-* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
15		-* LG01N, OLG01N ((% class="mark" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>url:https://wiki.dragino.com/index.php/Through_MQTT_to_upload_data]])
	17	+* LG01N, OLG01N ((% style="color:red" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>doc:Main.Through MQTT to upload data.WebHome]])
16	16	* LG02, OLG02
17		-* LG308, DLOS8
18		-* LPS8
19		-* LIG16
20	20	* MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support)
	20	+* LG308N, DLOS8N, LPS8N
	21	+* LPS8V2
21	21
22		-= 2. Firmware Change Log for MQTT feature =
	23	+The MQTT Client Utility used in Dragino is **mosquitto_pub** and **mosquitto_sub**. User can add more options to the mqtt commands.
23	23
24		-(((
25		-This instruction is wrote start from LG02_LG08-5.3.1580178039. Below is related change log since this version of firmware.
26		-)))
	25	+Check out this link for more mosquito-related directives **[[https:~~/~~/mosquitto.org/man/mosquitto_pub-1.html>>https://mosquitto.org/man/mosquitto_pub-1.html]]**
27	27
28		-* LG02_LG08-5.3.1580178039
29		-** Initiate version
30	30
31		-= 3. MQTT forward operating principle =
	28	+= 2.  Example to communicate to a simple MQTT server =
32	32
33		-== 3.1 Network Structure ==
	30	+== 2.1  Overview ==
34	34
35		-Below shows the network structure for MQTT forwarding.
36	36
37		-* For Uplink: The sensor sends data to LoRa Gateway via LoRa wireless, The gateway will process these data and forward to remote MQTT Broker via Internet.
38		-* For Downlink: The gateway subscribe a topic in the MQTT broker, when there is update on the topic, the gateway will know and broadcast the data to Local LoRa network,
	33	+This section is an example to show how to set up LG01-N to communicate with a MQTT server. The MQTT server is a simple utility set up in a local PC. Note: User can set up same server via [[this instruction>>url:http://www.steves-internet-guide.com/install-mosquitto-broker/]].
39	39
40		-[[image:https://wiki.dragino.com/images/thumb/4/45/MQTT_Forward_1.png/600px-MQTT_Forward_1.png||height="348" width="600"]]
41	41
42		-General MQTT structure
	36	+== 2.2  Simulate via MQTT.fx utility ==
43	43
44	44
45		-== 3.2 How sensor data is forwarded ==
	39	+The [[MQTT.fx>>url:http://mqttfx.jensd.de/index.php/download]] is a MQTT client tool. We can use this to simulate a MQTT connection to our MQTT broker first to make sure the MQTT broker works. This will also help us understand how it works.
46	46
47		-In this MQTT forward feature, the key point is how the gateway process the sensor data.
48		-
49		-
50		-=== 3.2.1 Upstream ===
51		-
52		-Assume there are two sensor nodes, their ID are Node1 ID: 6734 , Node2 ID: 7456. In the remote MQTT broker there are two topics: Topic1: /channel/765800, Topic2: /channel/367860. We can set up in the gateway to map Node1 to Topic1 and Node2 to Topic2. So when there is a sensor data from Node1, the gateway will forward the data to Topic1, when there is sensor data from Node2, the gateway will forward to Topic2.
53		-
54	54	(((
55		-The data flow works as below diagram.
	42	+In this test, the MQTT broker and MQTT.fx are installed in the same PC, so the MQTT server address in MQTT.fx should be localhost. Below shows how to connect to the server.
56	56	)))
57	57
58		-[[~[~[image:https://wiki.dragino.com/images/thumb/2/2a/MQTT_Forward_2.png/600px-MQTT_Forward_2.png~|~|height="355" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Forward_2.png]]
	45	+[[image:image-20220527134929-6.png]]
59	59
60		-(((
61		-Upstream path
62		-)))
	47	+Connect to MQTT Broker
63	63
64		-(((
65		-Note: The sensor data can base or LoRa or other method, as long as there are data on the file /var/iot/channels. /span>
66		-)))
67	67
68		-(((
69		-
70		-)))
	50	+After connected, use publish to public some thing to MQTT server. This to simulate upsteam
71	71
72		-=== 3.2.2 Downstream ===
	52	+[[image:image-20220527135037-7.png]]
73	73
74		-The gateway subscribes to a topic of the remote MQTT broker topic. When there is some one publish a value on this topic. The gateway will get it and broadcast to local LoRa Network.
	54	+Upstream: Publish message to MQTT Broker
75	75
76		-(((
77		-Below are the data flow for downstream.
78		-)))
79	79
80		-[[image:https://wiki.dragino.com/images/thumb/3/3a/MQTT_Forward_3.png/600px-MQTT_Forward_3.png||height="368" width="600"]]
	57	+To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
81	81
82		-Downstream path
	59	+[[image:image-20220527135215-8.png]]
83	83
	61	+Downstream: Subscribe a topic to get downstream
84	84
85		-== 3.3 Macro Definition ==
86	86
87		-The MQTT publish command use Macro settings to generate flexible upstream payload for MQTT publish.
	64	+= 3. Add LoRa support to communicate with remote sensor =
88	88
89		-(((
90		-Currently the (% class="mark" %)**-t (topic)**(%%) and (% class="mark" %)**-m (message)**(%%) support Macros.
91		-)))
92	92
93		-=== 3.3.1 -t topic macro ===
	67	+In above section, we have configured the UI to support MQTT upstream and downstream. We can simulate via Linux command. In this section, we will guide how to communicate with remote LoRa End Node for upstream and downstream.
94	94
95		-* CHANNEL: Remote Channel ID
96		-* CLIENTID: Client ID , Same as -i
97		-* WRITE_API: Remote Channel Write API
98		-* USERNAME: User ID (-u)
99		-* HOSTNAME: Device Hostname
100	100
101		-=== 3.3.2 -m message macro ===
	70	+== 3.1  Use LoRa Raw protocol for communication ~-~- For LG01/LG02 ==
102	102
103		-* HOSTNAME: Device Hostname
104		-* CHANNEL: Remote Channel ID
105		-* DATA: Sensor Data without time stamp and rssi
106		-* META: Completely sensor data with time stamp and rssi
107		-* JSON: Convert META to json format.
108	108
109		-=== 3.3.3 Example for Macro ===
110		-
111		-[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]]
112		-
113		-MQTT Publish configure
114		-
115		-Above screen shots shows below format:
116		-
117		-* -t: CLIENTID/CHANNEL/data
118		-* -m: DATA
119		-
120		-When there is a LoRa sensor arrive. it will be store at the /var/iot/channels as below:
121		-
122		-[[image:https://wiki.dragino.com/images/thumb/c/c4/MQTT_Command_20.png/600px-MQTT_Command_20.png||height="325" width="600"]]
123		-
124		-Sensor Data
125		-
126	126	(((
127		-According to above macro. Gateway will publish (% class="mark" %)**field1=22.0&field2=49.0**(%%) to topic: (% class="mark" %)**dragino-1b7060/78901/data**(%%), where 78901 is the remote channel for this node ID.
	74	+We can use **[[LoRa Shield>>url:http://www.dragino.com/products/lora/item/102-lora-shield.html]]** to send LoRa Raw data to Gateway and receive data from gateway.
128	128	)))
129	129
130		-
131		-== 3.4 Modify the MQTT to support more options ==
132		-
133		-The MQTT Client Utility used in Dragino is **mosquitto_pub** and **mosquitto_sub**. User can add more options to the mqtt commands. User can check the valid options by command mosquitto_pub ~-~-help. as below:
134		-
135		-(% class="box" %)
136	136	(((
137		-root@dragino-1ec39c:~~# mosquitto_pub ~-~-help
138		-mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit.
139		-mosquitto_pub version 1.6.4 running on libmosquitto 1.6.4.
140		-\\Usage: mosquitto_pub {[-h host] [-p port] [-u username] [-P password] -t topic | -L URL}
141		- {-f file | -l | -n | -m message}
142		- [-c] [-k keepalive] [-q qos] [-r] [~-~-repeat N] [~-~-repeat-delay time]
143		- [-A bind_address]
144		- [-i id] [-I id_prefix]
145		- [-d] [~-~-quiet]
146		- [-M max_inflight]
147		- [-u username [-P password]]
148		- [~-~-will-topic [~-~-will-payload payload] [~-~-will-qos qos] [~-~-will-retain]]
149		- [{~-~-cafile file | ~-~-capath dir} [~-~-cert file] [~-~-key file]
150		- [~-~-ciphers ciphers] [~-~-insecure]
151		- [~-~-tls-alpn protocol]
152		- [~-~-tls-engine engine] [~-~-keyform keyform] [~-~-tls-engine-kpass-sha1]]
153		- [~-~-psk hex-key ~-~-psk-identity identity [~-~-ciphers ciphers]]
154		- [~-~-proxy socks-url]
155		- [~-~-property command identifier value]
156		- [-D command identifier value]
157		- mosquitto_pub ~-~-help
158		-\\-A : bind the outgoing socket to this host/ip address. Use to control which interface
159		- the client communicates over.
160		--d : enable debug messages.
161		--D : Define MQTT v5 properties. See the documentation for more details.
162		--f : send the contents of a file as the message.
163		--h : mqtt host to connect to. Defaults to localhost.
164		--i : id to use for this client. Defaults to mosquitto_pub_ appended with the process id.
165		--I : define the client id as id_prefix appended with the process id. Useful for when the
166		- broker is using the clientid_prefixes option.
167		--k : keep alive in seconds for this client. Defaults to 60.
168		--L : specify user, password, hostname, port and topic as a URL in the form:
169		- mqtt(s):~/~/[username[:password]@]host[:port]/topic
170		--l : read messages from stdin, sending a separate message for each line.
171		--m : message payload to send.
172		--M : the maximum inflight messages for QoS 1/2..
173		--n : send a null (zero length) message.
174		--p : network port to connect to. Defaults to 1883 for plain MQTT and 8883 for MQTT over TLS.
175		--P : provide a password
176		--q : quality of service level to use for all messages. Defaults to 0.
177		--r : message should be retained.
178		--s : read message from stdin, sending the entire input as a message.
179		--t : mqtt topic to publish to.
180		--u : provide a username
181		--V : specify the version of the MQTT protocol to use when connecting.
182		- Can be mqttv5, mqttv311 or mqttv31. Defaults to mqttv311.
183		-~-~-help : display this message.
184		-~-~-repeat : if publish mode is -f, -m, or -s, then repeat the publish N times.
185		-~-~-repeat-delay : if using ~-~-repeat, wait time seconds between publishes. Defaults to 0.
186		-~-~-quiet : (% class="mark" %)don't print error messages.
187		-~-~-will-payload : payload for the client Will, which is sent by the broker in case of
188		- unexpected disconnection. If not given and will-topic is set, a zero
189		- length message will be sent.
190		-~-~-will-qos : QoS level for the client Will.
191		-~-~-will-retain : if given, make the client Will retained.
192		-~-~-will-topic : the topic on which to publish the client Will.
193		-~-~-cafile : path to a file containing trusted CA certificates to enable encrypted
194		- communication.
195		-~-~-capath : path to a directory containing trusted CA certificates to enable encrypted
196		- communication.
197		-~-~-cert : client certificate for authentication, if required by server.
198		-~-~-key : client private key for authentication, if required by server.
199		-~-~-keyform : keyfile type, can be either "pem" or "engine".
200		-~-~-ciphers : openssl compatible list of TLS ciphers to support.
201		-~-~-tls-version : TLS protocol version, can be one of tlsv1.3 tlsv1.2 or tlsv1.1.
202		- Defaults to tlsv1.2 if available.
203		-~-~-insecure : do not check that the server certificate hostname matches the remote
204		- hostname. Using this option means that you cannot be sure that the
205		- remote host is the server you wish to connect to and so is insecure.
206		- Do not use this option in a production environment.
207		-~-~-tls-engine : If set, enables the use of a TLS engine device.
208		-~-~-tls-engine-kpass-sha1 : SHA1 of the key password to be used with the selected SSL engine.
209		-~-~-psk : pre-shared-key in hexadecimal (no leading 0x) to enable TLS-PSK mode.
210		-~-~-psk-identity : client identity string for TLS-PSK mode.
211		-~-~-proxy : SOCKS5 proxy URL of the form:
212		- socks5h:~/~/[username[:password]@]hostname[:port]
213		- Only "none" and "username" authentication is supported.
214		-\\See https:~/~/mosquitto.org/ for more information.
	78	+The example Sketch for LoRa Shield +Arduino is here: **[[LoRa_Shield_Sketch_For_MQTT>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]]**
215	215	)))
216	216
217		-
218	218	(((
219		-and modify the /usr/bin/mqtt_process.sh script, the location to change the command option is below lines:
220		-)))
	82	+And this link is the required library: **[[arduino-LoRa-master>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]]**. Unzip this library and put in Arduino library location.
221	221
222		-(% class="box" %)
223		-(((
224		-# Call MQTT Publish command
225		-\\# 1. Case with User, Password and Client ID present  (e.g. Azure)
226		-if [ ! -z "$pass" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then
227		-case="1"
228		-mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic -u $user -P "$pass" $C $cafile $PUB_FLAG "$mqtt_data"
229		-\\# 2. Case with Certificate, Key and ClientID present (e.g. AWS)
230		-elif [ ! -z "$certfile" ] && [ ! -z "$key" ] && [ ! -z "$clientID" ]; then
231		-case="2"
232		-mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic ~-~-cert $cert ~-~-key $key $C $cafile $PUB_FLAG "$mqtt_data"
233		-\\# 3. Case with no User, Certificate or ClientID present
234		-elif [ -z "$user" ] && [ -z "$certfile" ] && [ -z "$clientID" ]; then
235		-case="3"
236		-mosquitto_pub $D -h $server -p $port -q $pub_qos -t $pub_topic $PUB_FLAG "$mqtt_data"
237		-\\# 4. Case with no User, Certificate, but with ClientID present
238		-elif [ -z "$user" ] && [ -z "$certfile" ] && [ ! -z "$clientID" ]; then
239		-case="4"
240		-mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic $PUB_FLAG "$mqtt_data"
241		-\\# 5. Case with User and ClientID present, but no Password and no Certificate present
242		-elif [ -z "$pass" ] && [ -z "$certfile" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then
243		-case="5"
244		-mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic -u $user $PUB_FLAG "$mqtt_data"
245		-\\# 6. Case with User and Password present, but no ClientID and no Certificate present
246		-elif [ ! -z "$user" ] && [ ! -z "$pass" ] && [ -z "$clientID" ] && [ -z "$certfile" ]; then
247		-case="6"
248		-mosquitto_pub $D -h $server -p $port -q $pub_qos  -t $pub_topic -u $user -P "$pass" $PUB_FLAG "$mqtt_data"
249		-\\# 0. Else - invalid parameters, just log
250		-else
251		-case="Invalid parameters"
252		-logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."
253		-fi
	84	+
254	254	)))
255	255
256		-
257		-= 4. Example to communicate to a simple MQTT server =
258		-
259		-== 4.1 Overview ==
260		-
261		-This section is an example to show how to set up LG01-N to communicate with a MQTT server. The MQTT server is a simple utility set up in a local PC. Note: User can set up same server via [[this instruction>>url:http://www.steves-internet-guide.com/install-mosquitto-broker/]].
262		-
263		-== 4.2 Simulate via MQTT.fx utility ==
264		-
265		-The [[MQTT.fx>>url:http://mqttfx.jensd.de/index.php/download]] is a MQTT client tool. We can use this to simulate a MQTT connection to our MQTT broker first to make sure the MQTT broker works. This will also help us understand how it works.
266		-
267	267	(((
268		-In this test, the MQTT broker and MQTT.fx are installed in the same PC, so the MQTT server address in MQTT.fx should be localhost. Below shows how to connect to the server.
	88	+What does the Arduino Sketch do? The Arduino Sketch will:
269	269	)))
270	270
271		-[[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png||height="201" width="600"]]
	91	+* Upstream: Keep sending a LoRa Message every minutes with this payload : <4567>tem=xx&hum=yy (Where xx and yy are temperature and humidity value generated randomly).
	92	+* Downstream: Listening broadcast message from gateway, and print it in console.
	93	+* The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below:
272	272
273		-Connect to MQTT Broker
	95	+[[image:image-20220527140354-18.png]]
274	274
275		-After connected, use publish to public some thing to MQTT server. This to simulate upsteam
	97	+LoRa Parameter should match
276	276
277		-[[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png||height="149" width="600"]]
278	278
279		-Upstream: Publish message to MQTT Broker
	100	+Below is the test result after the Arduino Sketch is running.
280	280
281		-To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
	102	+[[image:image-20220527140459-19.png]]
282	282
283		-[[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png||height="279" width="600"]]
	104	+Upstream Data Flow
284	284
285		-Downstream: Subscribe a topic to get downstream
286	286
	107	+[[image:image-20220527140542-20.png]]
287	287
288		-== 4.3 Simulate via Dragino Command Line ==
	109	+Downstream Data Flow
289	289
290		-For first try of MQTT connection, simulate via command line is recommend, there are many servers / connection type for MQTT. They are using different connection parameters. Simulating the connection via command line will help us rapidly connect to server and debug.
291	291
292		-In the Dragino Gateway, we use [[mosquitto client>>url:https://mosquitto.org/]] for MQTT connection.
	112	+== 3.2  Use LoRaWAN Protocol for communication ~-~- For LG308/LPS8/DLOS8/LG308N/LPS8N/DLOS8N ==
293	293
294	294
295		-(% class="mark" %)**For Upstream**
296		-
297		-command is [[mosquitto_pub>>url:https://mosquitto.org/man/mosquitto_pub-1.html]]
298		-
299		-Example: mosquitto_pub -h 192.168.199.148 -p 1883 -t /channel/6543 -m temp=36
300		-
301		-Note: 192.168.199.148 is MQTT broker address, the gateway and the MQTT broker PC are in the same network.
302		-
303		-[[image:https://wiki.dragino.com/images/thumb/d/d0/MQTT_Command_6.png/600px-MQTT_Command_6.png||height="188" width="600"]]
304		-
305		-mosquitto_pub
306		-
307		-
308		-(% class="mark" %)**For Downstream**
309		-
310		-Use [[mosquitto_sub>>url:https://mosquitto.org/man/mosquitto_sub-1.html]] to subscribe the change on the topic.
311		-
312		-[[image:https://wiki.dragino.com/images/thumb/8/89/MQTT_Command_7.png/600px-MQTT_Command_7.png||height="267" width="600"]]
313		-
314		-mosquitto_sub
315		-
316		-
317		-== 4.4 Configure Dragino UI for MQTT connection ==
318		-
319		-This chapter are step by step to show to configure the Dragino Menu for MQTT auto connection.
320		-
321	321	(((
322		-Go to (% class="mark" %)**Dragino Menu ~-~-> MQTT Client**
	116	+Since firmware (% style="color:#4f81bd" %)**LG02_LG08~-~-build-v5.3.1585192026-20200326-1109,**(%%) Dragino LoRaWAN gateways support the communication to LoRaWAN (% style="color:#4f81bd" %)**ABP end node**(%%) locally without the need of LoRaWAN server. This feature allow us to integrate MQTT in the gateway to support LoRaWAN to MQTT forwarding or visa verse.
323	323	)))
324	324
325		-[[image:https://wiki.dragino.com/images/thumb/b/bc/MQTT_Command_8.png/600px-MQTT_Command_8.png||height="249" width="600"]]
	119	+(((
	120	+When use test this feature, please use the version higher then : (% style="color:#4f81bd" %)**LG02_LG08~-~-build-v5.4.1593400722-20200629-1120**(%%), in this version, the upload format is changed and readable, which is easier for integration.
326	326
327		-go to mqtt configure menu
328	328
	123	+(% style="color:blue" %)**Video Instruction**(%%): (% style="color:blue" %)[[https:~~/~~/youtu.be/qJTY441-t90>>url:https://youtu.be/qJTY441-t90]]
	124	+)))
	125	+
329	329	(((
330		-Select **Forward to MQTT server**. (% class="mark" %)**Notice**(%%): This option is removed from the latest firmware, in the latest firmware, if user submit "SAVE & APPLY" in MQTT page, the gateway will use MQTT service.
	127	+(% style="color:blue" %)**Step 1**(%%): Refer [[Communicate with ABP End Node>>Communicate with ABP End Node without LoRaWAN Network Server --- LG308]] to know how to set up LG308 to work with LoRaWAN End node.
331	331	)))
332	332
333		-[[image:https://wiki.dragino.com/images/thumb/1/14/MQTT_Commands_8.png/600px-MQTT_Commands_8.png||height="240" width="600"]]
334		-
335		-forward to MQTT
336		-
337		-
338		-=== 4.4.1 Configure the MQTT Client for Upstream ===
339		-
340		-Below screenshot is same as the publish command:
341		-
342		-(% class="box" %)
343	343	(((
344		-mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t CLIENTID/CHANNEL/data -m DATA
345		-~/~/where the CLIENTID, CHANNEL & DATA are macro. represent for
346		-~/~/CLIENTID: dragino-1b7060
347		-~/~/CHANNEL: Remote ID in Channel settings; here is 78901 or 567456
348		-~/~/DATA: The data stores in /var/iot/channels/
	131	+(% style="color:blue" %)**Step 2**(%%): Make sure your Radio settings match the End Node settings.
349	349	)))
350	350
351		-[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]]
	134	+[[image:image-20220527141235-21.png]]
352	352
353		-MQTT Publish configure
	136	+Use Same Frequency Band as End Node
354	354
355	355
356		-[[image:https://wiki.dragino.com/images/thumb/b/b7/MQTT_Command_10.png/600px-MQTT_Command_10.png||height="544" width="600"]]
357		-
358		-MQTT Channel settings
359		-
360	360	(((
361		-For example, if we put a data(temp=46) on the file /var/iot/channels/4567, because 4567 match the remote channel 78901. the gateway will run this command:
362		-)))
363		-
364		-(% class="box" %)
365	365	(((
366		-mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t dragino-1b7060/78901/data -m temp=46
	141	+(% style="color:blue" %)**Step 3**(%%): Set up publish format and MQTT channel. The LG308 will store the Data from End node in (% style="color:#4f81bd" %)**HEX format**(%%) in the file.
367	367	)))
368		-
369		-(((
370		-to MQTT broker.
371	371	)))
372	372
	145	+[[image:image-20220613191345-4.png]]
373	373
374		-(((
375		-Below is a simulation to put this data to active the MQTT publish.
376		-)))
377	377
378		-[[image:https://wiki.dragino.com/images/thumb/3/30/MQTT_Command_11.png/600px-MQTT_Command_11.png||height="308" width="600"]]
	148	+(% style="color:blue" %)**Step 4**(%%): Map the Device Address to Remote ID in MQTT server.
379	379
380		-MQTT Publish
	150	+[[image:image-20220613190635-2.png]]
381	381
382	382
383		-=== 4.4.2 Configure the MQTT Client for Downstream ===
	153	+(% style="color:blue" %)**Step 5: Upstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server
384	384
385		-Below screen shot equal to this subscribe command:
	155	+[[image:image-20220527141843-24.png]]
386	386
387		-(% class="box" %)
388		-(((
389		-mosquitto_sub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t command.
390		-)))
391	391
392		-[[image:https://wiki.dragino.com/images/3/36/MQTT_Command_12.png||height="173" width="579"]]
	158	+[[image:image-20220527141933-25.png]]
393	393
394		-MQTT Subscribe
	160	+Choose ASCII Format
395	395
396	396
397		-(((
398		-When MQTT broker receive a update on this topic, the gateway will get the update and use LoRa radio to broadcast this message. The LoRa parameters used for update is:
399		-)))
	163	+[[image:image-20220527142028-26.png]]
400	400
401		-[[image:https://wiki.dragino.com/images/thumb/b/b8/MQTT_Command_13.png/600px-MQTT_Command_13.png||height="300" width="600"]]
	165	+LHT65 Decoder
402	402
403		-LoRa Broadcast parameters.
404	404
	168	+(% style="color:blue" %)**Step 6: Set up subscribe**(%%)**:** Subscribe a topci for downstream.
405	405
406		-And below is the subscribe simulation:
	170	+[[image:image-20220613191426-5.png]]
407	407
408		-[[image:https://wiki.dragino.com/images/thumb/6/60/MQTT_Command_14.png/600px-MQTT_Command_14.png||height="255" width="600"]]
409	409
410		-downstream simulation
	173	+(% style="color:blue" %)**Step 7: Downstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server.
411	411
	175	+[[image:image-20220527142239-28.png]]
412	412
413		-== 4.5 Add LoRa support to communicate with remote sensor ==
414	414
415		-In above section, we have configured the UI to support MQTT upstream and downstream. We can simulate via Linux command. In this section, we will guide how to communicate with remote LoRa End Node for upstream and downstream.
416	416
417		-=== 4.5.1 Use LoRa Raw protocol for communication ~-~- For LG01/LG02 ===
	179	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload**"
418	418
	181	+(% class="box infomessage" %)
419	419	(((
420		-We can use [[LoRa Shield>>url:http://www.dragino.com/products/lora/item/102-lora-shield.html]] to send LoRa Raw data to Gateway and receive data from gateway.
	183	+**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello"**
421	421	)))
422	422
423		-(((
424		-The example Sketch for LoRa Shield +Arduino is here: [[LoRa_Shield_Sketch_For_MQTT>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]]
425		-)))
	186	+mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**"
426	426
	188	+(% class="box infomessage" %)
427	427	(((
428		-And this link is the required library: [[arduino-LoRa-master>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]]. Unzip this library and put in Arduino library location.
	190	+**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2"**
429	429	)))
430	430
431		-(((
432		-What does the Arduino Sketch do? The Arduino Sketch will:
433		-)))
	193	+(% style="color:red" %)**Notice: The text use for Downstream must meet the requirement from [[LG308 Downstream Payload>>Communicate with ABP End Node without LoRaWAN Network Server --- LG308||anchor="H2.2Downstream"]]**
434	434
435		-* Upstream: Keep sending a LoRa Message every minutes with this payload : <4567>tem=xx&hum=yy (Where xx and yy are temperature and humidity value generated randomly).
436		-* Downstream: Listening broadcast message from gateway, and print it in console.
437		-* The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below:
	195	+Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]]
438	438
439		-[[image:https://wiki.dragino.com/images/thumb/3/3b/MQTT_Command_17.png/600px-MQTT_Command_17.png||height="197" width="600"]]
	197	+[[image:image-20220613192816-6.png||height="440" width="1056"]]
440	440
441		-LoRa Parameter should match
442	442
	200	+== 3.3  Use LoRaWAN Protocol for communication ~-~- For LPS8V2 ==
443	443
444		-Below is the test result after the Arduino Sketch is running.
445		-
446		-[[image:https://wiki.dragino.com/images/thumb/6/63/MQTT_Command_18.png/600px-MQTT_Command_18.png||height="319" width="600"]]
447		-
448		-Upstream Data Flow
449		-
450		-[[image:https://wiki.dragino.com/images/thumb/1/18/MQTT_Command_19.png/600px-MQTT_Command_19.png||height="309" width="600"]]
451		-
452		-Downstream Data Flow
453		-
454		-
455		-=== 4.5.2 Use LoRaWAN Protocol for communication ~-~- For LG308/LPS8/DLOS8 ===
456		-
457	457	(((
458		-Since firmware (% class="mark" %)**LG02_LG08~-~-build-v5.3.1585192026-20200326-1109,**(%%) Dragino LoRaWAN gateways support the communication to LoRaWAN (% class="mark" %)**ABP end node**(%%) locally without the need of LoRaWAN server. This feature allow us to integrate MQTT in the gateway to support LoRaWAN to MQTT forwarding or visa verse.
459		-)))
	203	+
460	460
461		-(((
462		-When use test this feature, please use the version higher then : (% class="mark" %)**LG02_LG08~-~-build-v5.4.1593400722-20200629-1120**(%%), in this version, the upload format is changed and readable, which is easier for integration.
463		-(% class="mark" %)**Video Instruction**(%%):[[https:~~/~~/youtu.be/qJTY441-t90>>url:https://youtu.be/qJTY441-t90]]
	205	+(% style="color:blue" %)**Step 1**(%%): Refer **[[Register Node to Chirpstack>>http://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H2.1A0RegisterNode]]** and **[[Register Gateway to Chirpstack>>http://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H4.A0SemtechUDPforChirpStackv4]]**to know How do register node devices and gateways to the built-in chirpstack server
464	464	)))
465	465
466	466	(((
467		-**Step 1**: Refer [[Communicate with ABP End Node>>url:https://wiki.dragino.com/index.php/Communication_with_ABP_End_Node]] to know how to set up LG308 to work with LoRaWAN End node.
468		-)))
	209	+(% style="color:blue" %)**Step 2**(%%): Make sure your node data is normal on the built-in server
469	469
470		-(((
471		-**Step 2**: Make sure your Radio settings match the End Node settings.
472		-)))
	211	+Click "**Event**" on the node device interface on chirpstack, and then click "**+up**" to view the detailed data information of the node device
473	473
474		-[[image:https://wiki.dragino.com/images/thumb/f/f7/LG308_MQTT_5.png/600px-LG308_MQTT_5.png||height="387" width="600"]]
475		-
476		-Use Same Frequency Band as End Node
477		-
478		-
479		-(((
480		-**Step 3**: Set up publish format and MQTT channel. The LG308 will store the Data from End node in HEX format in the file. And we need to config the format to META
	213	+[[image:image-20240831160038-1.png||height="680" width="1321"]]
481	481	)))
482	482
483		-[[image:https://wiki.dragino.com/images/thumb/8/8d/LG308_MQTT_3.png/600px-LG308_MQTT_3.png||height="385" width="600"]]
484	484
485		-Publish mush use META as data format for LG308
	217	+(% style="color:blue" %)**Step 3**(%%): Set up MQTT Forworder.
486	486
	219	+[[image:image-20240831162021-2.png||height="684" width="1191"]]
487	487
488		-**Step 4**: Map the Device Address to Remote ID in MQTT server.
489	489
490		-[[image:https://wiki.dragino.com/images/thumb/7/7f/LG308_MQTT_4.png/600px-LG308_MQTT_4.png||height="335" width="600"]]
	222	+(% style="color:blue" %)**Step 4:** (%%)Check result
491	491
492		-Map Dev Addr to remote ID
	224	+Users can check the data through the MQTT server, or use the MQtt.fx tool.
493	493
	226	+[[image:image-20240831162254-3.png||height="661" width="1284"]]
494	494
495		-**Step 5: Upstream**: Save the change, we can see the log info via "sytem log", End Node and MQTT Server
	228	+[[image:image-20240831162454-4.png]]
496	496
497		-[[image:https://wiki.dragino.com/images/thumb/b/be/LG308_MQTT_6.png/600px-LG308_MQTT_6.png||height="279" width="600"]]
	230	+= 4.  How to ask for Support =
498	498
499		-Upstream Process
500	500
501		-[[image:https://wiki.dragino.com/images/thumb/0/07/LG308_MQTT_6_1.png/600px-LG308_MQTT_6_1.png||height="246" width="600"]]
502		-
503		-Choose ASCII Format
504		-
505		-[[image:https://wiki.dragino.com/images/thumb/a/a3/LG308_MQTT_6_2.png/600px-LG308_MQTT_6_2.png||height="248" width="600"]]
506		-
507		-LHT65 Decoder
508		-
509		-
510		-**Step 6: Set up subscribe:** Subscribe a topci for downstream.
511		-
512		-[[image:https://wiki.dragino.com/images/thumb/b/b9/LG308_MQTT_7.png/600px-LG308_MQTT_7.png||height="176" width="600"]]
513		-
514		-Subscribe to a topic
515		-
516		-
517		-**Step 7**: Downstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server.
518		-
519		-[[image:https://wiki.dragino.com/images/thumb/9/97/LG308_MQTT_8.png/600px-LG308_MQTT_8.png||height="298" width="600"]]
520		-
521		-Downstream Flow
522		-
523		-(% class="mark" %)**Notice: The text use for Downstream must meet the requirement from [[LG308 Downstream Payload>>url:https://wiki.dragino.com/index.php/Communication_with_ABP_End_Node#Downstream]]**
524		-
525		-
526		-= 5. Example For Different MQTT Servers =
527		-
528		-(% style="width:731.222px" %)
529		-|=(% style="width: 270px;" %)(((
530		-[[image:https://wiki.dragino.com/images/thumb/7/73/ThingSpeak1.png/200px-ThingSpeak1.png||alt="ThingSpeak1.png" height="114" width="233"]]
531		-
532		-== [[ThingSpeak Server>>url:http://www.thingspeak.com/]] ==
533		-
534		-
535		-[[Examples>>url:https://wiki.dragino.com/index.php/ThingSpeak_Examples]]
536		-)))|=(% style="width: 242px;" %)(((
537		-[[image:https://wiki.dragino.com/images/thumb/3/3b/Lewei50.png/200px-Lewei50.png||alt="Lewei50.png" height="65" width="223"]]
538		-
539		-== ==
540		-
541		-== [[乐联网平台>>url:https://www.lewei50.com/]] ==
542		-
543		-
544		-[[lewei Example>>url:https://wiki.dragino.com/index.php/Lewei_Example_mqtt]]
545		-)))|=(% style="width: 214px;" %)(((
546		-[[image:https://wiki.dragino.com/images/thumb/a/aa/AWS-IOT.png/200px-AWS-IOT.png||alt="AWS-IOT.png" height="112" width="183"]]
547		-
548		-== [[AWS-IOT>>url:https://aws.amazon.com/cn/iot-platform/how-it-works/]] ==
549		-
550		-
551		-[[AWS Examples>>url:https://wiki.dragino.com/index.php/MQTT_Forward_to_Amazon_AWS-IOT]]
552		-)))
553		-
554		-= 6. How to Debug =
555		-
556		-User can login the gateway's console and run (% class="mark" %)**logread -f**(%%). It will shows the output when there is packet arrive.User can see if it is correct.
557		-
558		-= 7. How to ask for Support =
559		-
560	560	If a user still not have trouble making it works. please send a mail to support@dragino.com with the below info:
561	561
562	562	* Detail of your LoRaWAN end node.

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