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

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