Changes for page MQTT Forward Instruction
Last modified by Kilight Cao on 2024/08/31 16:26
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... ... @@ -134,128 +134,134 @@ 134 134 135 135 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: 136 136 137 -{{{root@dragino-1ec39c:~# mosquitto_pub --help 137 +(% class="box" %) 138 +((( 139 +root@dragino-1ec39c:~~# mosquitto_pub ~-~-help 138 138 mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit. 139 139 mosquitto_pub version 1.6.4 running on libmosquitto 1.6.4. 140 - 142 + 141 141 Usage: mosquitto_pub {[-h host] [-p port] [-u username] [-P password] -t topic | -L URL} 142 142 {-f file | -l | -n | -m message} 143 - [-c] [-k keepalive] [-q qos] [-r] [--repeat N] [--repeat-delay time] 145 + [-c] [-k keepalive] [-q qos] [-r] [~-~-repeat N] [~-~-repeat-delay time] 144 144 [-A bind_address] 145 145 [-i id] [-I id_prefix] 146 - [-d] [--quiet] 148 + [-d] [~-~-quiet] 147 147 [-M max_inflight] 148 148 [-u username [-P password]] 149 - [--will-topic [--will-payload payload] [--will-qos qos] [--will-retain]] 150 - [{--cafile file | --capath dir} [--cert file] [--key file] 151 - [--ciphers ciphers] [--insecure] 152 - [--tls-alpn protocol] 153 - [--tls-engine engine] [--keyform keyform] [--tls-engine-kpass-sha1]] 154 - [--psk hex-key --psk-identity identity [--ciphers ciphers]] 155 - [--proxy socks-url] 156 - [--property command identifier value] 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] 157 157 [-D command identifier value] 158 - mosquitto_pub --help 159 - 160 - 160 + mosquitto_pub ~-~-help 161 + 162 +-A : bind the outgoing socket to this host/ip address. Use to control which interface 161 161 the client communicates over. 162 - 163 - 164 - 165 - 166 - 167 - 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 168 168 broker is using the clientid_prefixes option. 169 - 170 - 171 - mqtt(s)://[username[:password]@]host[:port]/topic 172 - 173 - 174 - 175 - 176 - 177 - 178 - 179 - 180 - 181 - 182 - 183 - 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. 184 184 Can be mqttv5, mqttv311 or mqttv31. Defaults to mqttv311. 185 - 186 - 187 - 188 - 189 - 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 190 190 unexpected disconnection. If not given and will-topic is set, a zero 191 191 length message will be sent. 192 - 193 - 194 - 195 - 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 196 196 communication. 197 - 199 +~-~-capath : path to a directory containing trusted CA certificates to enable encrypted 198 198 communication. 199 - 200 - 201 - 202 - 203 - 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. 204 204 Defaults to tlsv1.2 if available. 205 - 207 +~-~-insecure : do not check that the server certificate hostname matches the remote 206 206 hostname. Using this option means that you cannot be sure that the 207 207 remote host is the server you wish to connect to and so is insecure. 208 208 Do not use this option in a production environment. 209 - 210 - 211 - 212 - 213 - 214 - socks5h://[username[:password]@]hostname[:port] 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] 215 215 Only "none" and "username" authentication is supported. 216 - 217 -See https://mosquitto.org/ for more information.}}} 218 + 219 +See https:~/~/mosquitto.org/ for more information. 220 +))) 218 218 219 219 220 220 and modify the /usr/bin/mqtt_process.sh script, the location to change the command option is below lines: 221 221 222 -{{{# Call MQTT Publish command 223 - 224 -# 1. Case with User, Password and Client ID present (e.g. Azure) 225 +(% class="box" %) 226 +((( 227 +# Call MQTT Publish command 228 + 229 +# 1. Case with User, Password and Client ID present (e.g. Azure) 225 225 if [ ! -z "$pass" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then 226 - 227 - 228 - 231 +case="1" 232 +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" 233 + 229 229 # 2. Case with Certificate, Key and ClientID present (e.g. AWS) 230 230 elif [ ! -z "$certfile" ] && [ ! -z "$key" ] && [ ! -z "$clientID" ]; then 231 - 232 - 233 - 236 +case="2" 237 +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" 238 + 234 234 # 3. Case with no User, Certificate or ClientID present 235 235 elif [ -z "$user" ] && [ -z "$certfile" ] && [ -z "$clientID" ]; then 236 - 237 - 238 - 241 +case="3" 242 +mosquitto_pub $D -h $server -p $port -q $pub_qos -t $pub_topic $PUB_FLAG "$mqtt_data" 243 + 239 239 # 4. Case with no User, Certificate, but with ClientID present 240 240 elif [ -z "$user" ] && [ -z "$certfile" ] && [ ! -z "$clientID" ]; then 241 - 242 - 243 - 246 +case="4" 247 +mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic $PUB_FLAG "$mqtt_data" 248 + 244 244 # 5. Case with User and ClientID present, but no Password and no Certificate present 245 245 elif [ -z "$pass" ] && [ -z "$certfile" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then 246 - 247 - 248 - 251 +case="5" 252 +mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic -u $user $PUB_FLAG "$mqtt_data" 253 + 249 249 # 6. Case with User and Password present, but no ClientID and no Certificate present 250 250 elif [ ! -z "$user" ] && [ ! -z "$pass" ] && [ -z "$clientID" ] && [ -z "$certfile" ]; then 251 - 252 - 253 - 256 +case="6" 257 +mosquitto_pub $D -h $server -p $port -q $pub_qos -t $pub_topic -u $user -P "$pass" $PUB_FLAG "$mqtt_data" 258 + 254 254 # 0. Else - invalid parameters, just log 255 255 else 256 - case="Invalid parameters" 257 - logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called." 258 -fi}}} 261 +case="Invalid parameters" 262 +logger "[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called." 263 +fi 264 +))) 259 259 260 260 261 261 = 4. Example to communicate to a simple MQTT server = ... ... @@ -270,19 +270,19 @@ 270 270 271 271 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. 272 272 273 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png~|~|height="201" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Forward_4.png]]279 +[[image:https://wiki.dragino.com/images/thumb/0/06/MQTT_Forward_4.png/600px-MQTT_Forward_4.png||height="201" width="600"]] 274 274 275 275 Connect to MQTT Broker 276 276 277 277 After connected, use publish to public some thing to MQTT server. This to simulate upsteam 278 278 279 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png~|~|height="149" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Forward_5.png]]285 +[[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png||height="149" width="600"]] 280 280 281 281 Upstream: Publish message to MQTT Broker 282 282 283 283 To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below: 284 284 285 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png~|~|height="279" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Forward_6.png]]291 +[[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png||height="279" width="600"]] 286 286 287 287 Downstream: Subscribe a topic to get downstream 288 288 ... ... @@ -302,7 +302,7 @@ 302 302 303 303 Note: 192.168.199.148 is MQTT broker address, the gateway and the MQTT broker PC are in the same network. 304 304 305 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/d/d0/MQTT_Command_6.png/600px-MQTT_Command_6.png~|~|height="188" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_6.png]]311 +[[image:https://wiki.dragino.com/images/thumb/d/d0/MQTT_Command_6.png/600px-MQTT_Command_6.png||height="188" width="600"]] 306 306 307 307 mosquitto_pub 308 308 ... ... @@ -311,10 +311,11 @@ 311 311 312 312 Use [[mosquitto_sub>>url:https://mosquitto.org/man/mosquitto_sub-1.html]] to subscribe the change on the topic. 313 313 314 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/8/89/MQTT_Command_7.png/600px-MQTT_Command_7.png~|~|height="267" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_7.png]]320 +[[image:https://wiki.dragino.com/images/thumb/8/89/MQTT_Command_7.png/600px-MQTT_Command_7.png||height="267" width="600"]] 315 315 316 316 mosquitto_sub 317 317 324 + 318 318 == 4.4 Configure Dragino UI for MQTT connection == 319 319 320 320 This chapter are step by step to show to configure the Dragino Menu for MQTT auto connection. ... ... @@ -321,16 +321,17 @@ 321 321 322 322 Go to Dragino Menu ~-~-> MQTT Client 323 323 324 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/bc/MQTT_Command_8.png/600px-MQTT_Command_8.png~|~|height="249" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_8.png]]331 +[[image:https://wiki.dragino.com/images/thumb/b/bc/MQTT_Command_8.png/600px-MQTT_Command_8.png||height="249" width="600"]] 325 325 326 326 go to mqtt configure menu 327 327 328 328 Select Forward to MQTT server. 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. 329 329 330 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/1/14/MQTT_Commands_8.png/600px-MQTT_Commands_8.png~|~|height="240" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Commands_8.png]]337 +[[image:https://wiki.dragino.com/images/thumb/1/14/MQTT_Commands_8.png/600px-MQTT_Commands_8.png||height="240" width="600"]] 331 331 332 332 forward to MQTT 333 333 341 + 334 334 === 4.4.1 Configure the MQTT Client for Upstream === 335 335 336 336 Below screenshot is same as the publish command: ... ... @@ -342,11 +342,11 @@ 342 342 //DATA: The data stores in /var/iot/channels/ 343 343 }}} 344 344 345 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png~|~|height="385" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_9.png]]353 +[[image:https://wiki.dragino.com/images/thumb/c/c7/MQTT_Command_9.png/600px-MQTT_Command_9.png||height="385" width="600"]] 346 346 347 347 MQTT Publish configure 348 348 349 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/b7/MQTT_Command_10.png/600px-MQTT_Command_10.png~|~|height="544" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_10.png]]357 +[[image:https://wiki.dragino.com/images/thumb/b/b7/MQTT_Command_10.png/600px-MQTT_Command_10.png||height="544" width="600"]] 350 350 351 351 MQTT Channel settings 352 352 ... ... @@ -360,7 +360,7 @@ 360 360 361 361 Below is a simulation to put this data to active the MQTT publish. 362 362 363 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/3/30/MQTT_Command_11.png/600px-MQTT_Command_11.png~|~|height="308" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_11.png]]371 +[[image:https://wiki.dragino.com/images/thumb/3/30/MQTT_Command_11.png/600px-MQTT_Command_11.png||height="308" width="600"]] 364 364 365 365 MQTT Publish 366 366 ... ... @@ -372,7 +372,7 @@ 372 372 {{{ mosquitto_sub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t command. 373 373 }}} 374 374 375 -[[ ~[~[image:https://wiki.dragino.com/images/3/36/MQTT_Command_12.png~|~|height="173" width="579"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_12.png]]383 +[[image:https://wiki.dragino.com/images/3/36/MQTT_Command_12.png||height="173" width="579"]] 376 376 377 377 MQTT Subscribe 378 378 ... ... @@ -379,7 +379,7 @@ 379 379 380 380 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: 381 381 382 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/b8/MQTT_Command_13.png/600px-MQTT_Command_13.png~|~|height="300" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_13.png]]390 +[[image:https://wiki.dragino.com/images/thumb/b/b8/MQTT_Command_13.png/600px-MQTT_Command_13.png||height="300" width="600"]] 383 383 384 384 LoRa Broadcast parameters. 385 385 ... ... @@ -386,12 +386,11 @@ 386 386 387 387 And below is the subscribe simulation: 388 388 389 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/6/60/MQTT_Command_14.png/600px-MQTT_Command_14.png~|~|height="255" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_14.png]]397 +[[image:https://wiki.dragino.com/images/thumb/6/60/MQTT_Command_14.png/600px-MQTT_Command_14.png||height="255" width="600"]] 390 390 391 391 downstream simulation 392 392 393 393 394 - 395 395 == 4.5 Add LoRa support to communicate with remote sensor == 396 396 397 397 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. ... ... @@ -410,7 +410,7 @@ 410 410 * Downstream: Listening broadcast message from gateway, and print it in console. 411 411 * The LoRa parameter settings in Arduino should match the LoRa settings in gateway, as below: 412 412 413 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/3/3b/MQTT_Command_17.png/600px-MQTT_Command_17.png~|~|height="197" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_17.png]]420 +[[image:https://wiki.dragino.com/images/thumb/3/3b/MQTT_Command_17.png/600px-MQTT_Command_17.png||height="197" width="600"]] 414 414 415 415 LoRa Parameter should match 416 416 ... ... @@ -417,11 +417,11 @@ 417 417 418 418 Below is the test result after the Arduino Sketch is running. 419 419 420 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/6/63/MQTT_Command_18.png/600px-MQTT_Command_18.png~|~|height="319" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_18.png]]427 +[[image:https://wiki.dragino.com/images/thumb/6/63/MQTT_Command_18.png/600px-MQTT_Command_18.png||height="319" width="600"]] 421 421 422 422 Upstream Data Flow 423 423 424 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/1/18/MQTT_Command_19.png/600px-MQTT_Command_19.png~|~|height="309" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:MQTT_Command_19.png]]431 +[[image:https://wiki.dragino.com/images/thumb/1/18/MQTT_Command_19.png/600px-MQTT_Command_19.png||height="309" width="600"]] 425 425 426 426 Downstream Data Flow 427 427 ... ... @@ -441,7 +441,7 @@ 441 441 442 442 Step 2: Make sure your Radio settings match the End Node settings. 443 443 444 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/f/f7/LG308_MQTT_5.png/600px-LG308_MQTT_5.png~|~|height="387" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_5.png]]451 +[[image:https://wiki.dragino.com/images/thumb/f/f7/LG308_MQTT_5.png/600px-LG308_MQTT_5.png||height="387" width="600"]] 445 445 446 446 Use Same Frequency Band as End Node 447 447 ... ... @@ -448,7 +448,7 @@ 448 448 449 449 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 450 450 451 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/8/8d/LG308_MQTT_3.png/600px-LG308_MQTT_3.png~|~|height="385" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_3.png]]458 +[[image:https://wiki.dragino.com/images/thumb/8/8d/LG308_MQTT_3.png/600px-LG308_MQTT_3.png||height="385" width="600"]] 452 452 453 453 Publish mush use META as data format for LG308 454 454 ... ... @@ -455,7 +455,7 @@ 455 455 456 456 Step 4: Map the Device Address to Remote ID in MQTT server. 457 457 458 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/7/7f/LG308_MQTT_4.png/600px-LG308_MQTT_4.png~|~|height="335" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_4.png]]465 +[[image:https://wiki.dragino.com/images/thumb/7/7f/LG308_MQTT_4.png/600px-LG308_MQTT_4.png||height="335" width="600"]] 459 459 460 460 Map Dev Addr to remote ID 461 461 ... ... @@ -462,21 +462,21 @@ 462 462 463 463 Step 5: Upstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server 464 464 465 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/be/LG308_MQTT_6.png/600px-LG308_MQTT_6.png~|~|height="279" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_6.png]]472 +[[image:https://wiki.dragino.com/images/thumb/b/be/LG308_MQTT_6.png/600px-LG308_MQTT_6.png||height="279" width="600"]] 466 466 467 467 Upstream Process 468 468 469 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/0/07/LG308_MQTT_6_1.png/600px-LG308_MQTT_6_1.png~|~|height="246" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_6_1.png]]476 +[[image:https://wiki.dragino.com/images/thumb/0/07/LG308_MQTT_6_1.png/600px-LG308_MQTT_6_1.png||height="246" width="600"]] 470 470 471 471 Choose ASCII Format 472 472 473 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/a/a3/LG308_MQTT_6_2.png/600px-LG308_MQTT_6_2.png~|~|height="248" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_6_2.png]]480 +[[image:https://wiki.dragino.com/images/thumb/a/a3/LG308_MQTT_6_2.png/600px-LG308_MQTT_6_2.png||height="248" width="600"]] 474 474 475 475 LHT65 Decoder 476 476 477 477 Step 6: Set up subscribe: Subscribe a topci for downstream. 478 478 479 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/b/b9/LG308_MQTT_7.png/600px-LG308_MQTT_7.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_7.png]]486 +[[image:https://wiki.dragino.com/images/thumb/b/b9/LG308_MQTT_7.png/600px-LG308_MQTT_7.png||height="176" width="600"]] 480 480 481 481 Subscribe to a topic 482 482 ... ... @@ -483,7 +483,7 @@ 483 483 484 484 Step 7: Downstream: Save the change, we can see the log info via "sytem log", End Node and MQTT Server. 485 485 486 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/9/97/LG308_MQTT_8.png/600px-LG308_MQTT_8.png~|~|height="298" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_MQTT_8.png]]493 +[[image:https://wiki.dragino.com/images/thumb/9/97/LG308_MQTT_8.png/600px-LG308_MQTT_8.png||height="298" width="600"]] 487 487 488 488 Downstream Flow 489 489 ... ... @@ -492,23 +492,26 @@ 492 492 493 493 = 5. Example For Different MQTT Servers = 494 494 495 -|=((( 496 -[[~[~[image:https://wiki.dragino.com/images/thumb/7/73/ThingSpeak1.png/200px-ThingSpeak1.png~|~|alt="ThingSpeak1.png" height="98" width="200"~]~]>>url:https://wiki.dragino.com/index.php/File:ThingSpeak1.png]] 502 +(% style="width:715.222px" %) 503 +|=(% style="width: 238px;" %)((( 504 +[[image:https://wiki.dragino.com/images/thumb/7/73/ThingSpeak1.png/200px-ThingSpeak1.png||alt="ThingSpeak1.png" height="98" width="200"]] 497 497 498 498 === [[ThingSpeak Server>>url:http://www.thingspeak.com/]] === 499 499 500 500 501 501 [[Examples>>url:https://wiki.dragino.com/index.php/ThingSpeak_Examples]] 502 -)))|=((( 503 -[[ ~[~[image:https://wiki.dragino.com/images/thumb/3/3b/Lewei50.png/200px-Lewei50.png~|~|alt="Lewei50.png" height="58" width="200"~]~]>>url:https://wiki.dragino.com/index.php/File:Lewei50.png]]510 +)))|=(% style="width: 235px;" %)((( 511 +[[image:https://wiki.dragino.com/images/thumb/3/3b/Lewei50.png/200px-Lewei50.png||alt="Lewei50.png" height="58" width="200"]] 504 504 505 505 === [[乐联网平台>>url:https://www.lewei50.com/]] === 506 506 507 507 508 -[[lewei Example>>url:https://wiki.dragino.com/index.php/Lewei_Example_mqtt]] 509 -)))|=((( 510 -[[~[~[image:https://wiki.dragino.com/images/thumb/a/aa/AWS-IOT.png/200px-AWS-IOT.png~|~|alt="AWS-IOT.png" height="122" width="200"~]~]>>url:https://wiki.dragino.com/index.php/File:AWS-IOT.png]] 511 511 517 + 518 +[[lewei Example>>url:https://wiki.dragino.com/index.php/Lewei_Example_mqtt]] 519 +)))|=(% style="width: 239px;" %)((( 520 +[[image:https://wiki.dragino.com/images/thumb/a/aa/AWS-IOT.png/200px-AWS-IOT.png||alt="AWS-IOT.png" height="122" width="200"]] 521 + 512 512 === [[AWS-IOT>>url:https://aws.amazon.com/cn/iot-platform/how-it-works/]] === 513 513 514 514 ... ... @@ -517,7 +517,7 @@ 517 517 518 518 = 6. How to Debug = 519 519 520 -User can login the gateway's console and run **logread -f**. It will shows the output when there is packet arrive.User can see if it is correct. 530 +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. 521 521 522 522 = 7. How to ask for Support = 523 523