Changes for page MQTT Forward Instruction
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... ... @@ -14,279 +14,28 @@ 14 14 15 15 This MQTT forward instruction is for below devices: 16 16 17 -* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]] 18 -* LG01N, OLG01N ((% style="color:red" %)**Warning**(%%): LG01-P LG01-S use another instruction: [[MQTT for LG01-P/LG01S>>doc:Through MQTT to upload data.WebHome]]) 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]]) 19 19 * LG02, OLG02 20 -* LG308, DLOS8 21 -* LPS8 22 -* LIG16 19 +* LG308, DLOS8, LPS8, LIG16 23 23 * MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support) 21 +* LG308N, DLOS8N, LPS8N 22 +* LPS8V2 24 24 25 -= 2. Firmware Change Log for MQTT feature = 26 26 25 +The MQTT Client Utility used in Dragino is **mosquitto_pub** and **mosquitto_sub**. User can add more options to the mqtt commands. 27 27 28 -((( 29 -This instruction is wrote start from LG02_LG08-5.3.1580178039. Below is related change log since this version of firmware. 30 -))) 27 +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]]** 31 31 32 -* LG02_LG08-5.3.1580178039 33 -** Initiate version 34 34 35 -= 3.MQTTforwardoperatingprinciple =30 += 2. Example to communicate to a simple MQTT server = 36 36 32 +== 2.1 Overview == 37 37 38 -== 3.1 Network Structure == 39 39 40 - 41 -Below shows the network structure for MQTT forwarding. 42 - 43 -* **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. 44 -* **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, 45 - 46 -[[image:image-20220527133547-1.png]] 47 - 48 -General MQTT structure 49 - 50 - 51 -== 3.2 How sensor data is forwarded == 52 - 53 - 54 -In this MQTT forward feature, the key point is how the gateway process the sensor data. 55 - 56 - 57 -=== 3.2.1 Upstream === 58 - 59 -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. 60 - 61 -((( 62 -The data flow works as below diagram. 63 -))) 64 - 65 -[[image:image-20220527134000-2.png]] 66 - 67 -((( 68 -Upstream path 69 - 70 - 71 -))) 72 - 73 -((( 74 -(% style="color:red" %)**Note: The sensor data can base or LoRa or other method, as long as there are data on the file /var/iot/channels. /span>** 75 -))) 76 - 77 -((( 78 - 79 -))) 80 - 81 -=== 3.2.2 Downstream === 82 - 83 - 84 -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. 85 - 86 -((( 87 -Below are the data flow for downstream. 88 -))) 89 - 90 -[[image:image-20220527134038-3.png]] 91 - 92 -Downstream path 93 - 94 - 95 -== 3.3 Macro Definition == 96 - 97 - 98 -The MQTT publish command use Macro settings to generate flexible upstream payload for MQTT publish. 99 - 100 -((( 101 -Currently the (% style="color:#4f81bd" %)**-t (topic)**(%%) and (% style="color:#4f81bd" %)**-m (message)**(%%) support Macros. 102 - 103 - 104 -))) 105 - 106 -=== 3.3.1 -t topic macro === 107 - 108 - 109 -* CHANNEL: Remote Channel ID 110 -* CLIENTID: Client ID , Same as -i 111 -* WRITE_API: Remote Channel Write API 112 -* USERNAME: User ID (-u) 113 -* HOSTNAME: Device Hostname 114 - 115 - 116 -=== 3.3.2 -m message macro === 117 - 118 - 119 -* HOSTNAME: Device Hostname 120 -* CHANNEL: Remote Channel ID 121 -* DATA: Sensor Data without time stamp and rssi 122 -* META: Completely sensor data with time stamp and rssi 123 -* JSON: Convert META to json format. 124 - 125 - 126 -=== 3.3.3 Example for Macro === 127 - 128 - 129 -[[image:image-20220527134251-4.png]] 130 - 131 -MQTT Publish configure 132 - 133 - 134 -**Above screen shots shows below format:** 135 - 136 -* -t: CLIENTID/CHANNEL/data 137 -* -m: DATA 138 - 139 -When there is a LoRa sensor arrive. it will be store at the /var/iot/channels as below: 140 - 141 -[[image:image-20220527134332-5.png]] 142 - 143 -Sensor Data 144 - 145 - 146 -((( 147 -According to above macro. Gateway will publish (% style="color:#4f81bd" %)**field1=22.0&field2=49.0**(%%) to topic: (% style="color:#4f81bd" %)**dragino-1b7060/78901/data**(%%), where 78901 is the remote channel for this node ID. 148 -))) 149 - 150 - 151 - 152 -== 3.4 Modify the MQTT to support more options == 153 - 154 - 155 -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: 156 - 157 -(% class="box" %) 158 -((( 159 -root@dragino-1ec39c:~~# mosquitto_pub ~-~-help 160 -mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit. 161 -mosquitto_pub version 1.6.4 running on libmosquitto 1.6.4. 162 -\\Usage: mosquitto_pub {[-h host] [-p port] [-u username] [-P password] -t topic | -L URL} 163 - {-f file | -l | -n | -m message} 164 - [-c] [-k keepalive] [-q qos] [-r] [~-~-repeat N] [~-~-repeat-delay time] 165 - [-A bind_address] 166 - [-i id] [-I id_prefix] 167 - [-d] [~-~-quiet] 168 - [-M max_inflight] 169 - [-u username [-P password]] 170 - [~-~-will-topic [~-~-will-payload payload] [~-~-will-qos qos] [~-~-will-retain]] 171 - [{~-~-cafile file | ~-~-capath dir} [~-~-cert file] [~-~-key file] 172 - [~-~-ciphers ciphers] [~-~-insecure] 173 - [~-~-tls-alpn protocol] 174 - [~-~-tls-engine engine] [~-~-keyform keyform] [~-~-tls-engine-kpass-sha1]] 175 - [~-~-psk hex-key ~-~-psk-identity identity [~-~-ciphers ciphers]] 176 - [~-~-proxy socks-url] 177 - [~-~-property command identifier value] 178 - [-D command identifier value] 179 - mosquitto_pub ~-~-help 180 -\\-A : bind the outgoing socket to this host/ip address. Use to control which interface 181 - the client communicates over. 182 --d : enable debug messages. 183 --D : Define MQTT v5 properties. See the documentation for more details. 184 --f : send the contents of a file as the message. 185 --h : mqtt host to connect to. Defaults to localhost. 186 --i : id to use for this client. Defaults to mosquitto_pub_ appended with the process id. 187 --I : define the client id as id_prefix appended with the process id. Useful for when the 188 - broker is using the clientid_prefixes option. 189 --k : keep alive in seconds for this client. Defaults to 60. 190 --L : specify user, password, hostname, port and topic as a URL in the form: 191 - mqtt(s):~/~/[username[:password]@]host[:port]/topic 192 --l : read messages from stdin, sending a separate message for each line. 193 --m : message payload to send. 194 --M : the maximum inflight messages for QoS 1/2.. 195 --n : send a null (zero length) message. 196 --p : network port to connect to. Defaults to 1883 for plain MQTT and 8883 for MQTT over TLS. 197 --P : provide a password 198 --q : quality of service level to use for all messages. Defaults to 0. 199 --r : message should be retained. 200 --s : read message from stdin, sending the entire input as a message. 201 --t : mqtt topic to publish to. 202 --u : provide a username 203 --V : specify the version of the MQTT protocol to use when connecting. 204 - Can be mqttv5, mqttv311 or mqttv31. Defaults to mqttv311. 205 -~-~-help : display this message. 206 -~-~-repeat : if publish mode is -f, -m, or -s, then repeat the publish N times. 207 -~-~-repeat-delay : if using ~-~-repeat, wait time seconds between publishes. Defaults to 0. 208 -~-~-quiet : (% style="color:red" %)don't print error messages. 209 -~-~-will-payload : payload for the client Will, which is sent by the broker in case of 210 - unexpected disconnection. If not given and will-topic is set, a zero 211 - length message will be sent. 212 -~-~-will-qos : QoS level for the client Will. 213 -~-~-will-retain : if given, make the client Will retained. 214 -~-~-will-topic : the topic on which to publish the client Will. 215 -~-~-cafile : path to a file containing trusted CA certificates to enable encrypted 216 - communication. 217 -~-~-capath : path to a directory containing trusted CA certificates to enable encrypted 218 - communication. 219 -~-~-cert : client certificate for authentication, if required by server. 220 -~-~-key : client private key for authentication, if required by server. 221 -~-~-keyform : keyfile type, can be either "pem" or "engine". 222 -~-~-ciphers : openssl compatible list of TLS ciphers to support. 223 -~-~-tls-version : TLS protocol version, can be one of tlsv1.3 tlsv1.2 or tlsv1.1. 224 - Defaults to tlsv1.2 if available. 225 -~-~-insecure : do not check that the server certificate hostname matches the remote 226 - hostname. Using this option means that you cannot be sure that the 227 - remote host is the server you wish to connect to and so is insecure. 228 - Do not use this option in a production environment. 229 -~-~-tls-engine : If set, enables the use of a TLS engine device. 230 -~-~-tls-engine-kpass-sha1 : SHA1 of the key password to be used with the selected SSL engine. 231 -~-~-psk : pre-shared-key in hexadecimal (no leading 0x) to enable TLS-PSK mode. 232 -~-~-psk-identity : client identity string for TLS-PSK mode. 233 -~-~-proxy : SOCKS5 proxy URL of the form: 234 - socks5h:~/~/[username[:password]@]hostname[:port] 235 - Only "none" and "username" authentication is supported. 236 -\\See https:~/~/mosquitto.org/ for more information. 237 -))) 238 - 239 - 240 -((( 241 -and modify the /usr/bin/mqtt_process.sh script, the location to change the command option is below lines: 242 -))) 243 - 244 -(% class="box" %) 245 -((( 246 -//# Call MQTT Publish command 247 -\\# 1. Case with User, Password and Client ID present (e.g. Azure) 248 -if [ ! -z "$pass" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then 249 -case="1" 250 -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" 251 -\\# 2. Case with Certificate, Key and ClientID present (e.g. AWS) 252 -elif [ ! -z "$certfile" ] && [ ! -z "$key" ] && [ ! -z "$clientID" ]; then 253 -case="2" 254 -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" 255 -\\# 3. Case with no User, Certificate or ClientID present 256 -elif [ -z "$user" ] && [ -z "$certfile" ] && [ -z "$clientID" ]; then 257 -case="3" 258 -mosquitto_pub $D -h $server -p $port -q $pub_qos -t $pub_topic $PUB_FLAG "$mqtt_data" 259 -\\# 4. Case with no User, Certificate, but with ClientID present 260 -elif [ -z "$user" ] && [ -z "$certfile" ] && [ ! -z "$clientID" ]; then 261 -case="4" 262 -mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic $PUB_FLAG "$mqtt_data" 263 -\\# 5. Case with User and ClientID present, but no Password and no Certificate present 264 -elif [ -z "$pass" ] && [ -z "$certfile" ] && [ ! -z "$user" ] && [ ! -z "$clientID" ]; then 265 -case="5" 266 -mosquitto_pub $D -h $server -p $port -q $pub_qos -i $clientID -t $pub_topic -u $user $PUB_FLAG "$mqtt_data" 267 -\\# 6. Case with User and Password present, but no ClientID and no Certificate present 268 -elif [ ! -z "$user" ] && [ ! -z "$pass" ] && [ -z "$clientID" ] && [ -z "$certfile" ]; then 269 -case="6" 270 -mosquitto_pub $D -h $server -p $port -q $pub_qos -t $pub_topic -u $user -P "$pass" $PUB_FLAG "$mqtt_data" 271 -\\# 0. Else - invalid parameters, just log 272 -else 273 -case="(% style="color:red" %)Invalid parameters" (%%) 274 -logger (% style="color:red" %)"[IoT.MQTT]:Invalid Parameters - mosquitto_pub not called."(%%) 275 -fi// 276 -))) 277 - 278 - 279 - 280 -= 4. Example to communicate to a simple MQTT server = 281 - 282 - 283 -== 4.1 Overview == 284 - 285 - 286 286 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/]]. 287 287 288 288 289 -== 4.2 Simulate via MQTT.fx utility ==38 +== 2.2 Simulate via MQTT.fx utility == 290 290 291 291 292 292 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. ... ... @@ -315,160 +315,27 @@ 315 315 316 316 317 317 318 -= =4.3SimulateviaDraginoCommandLine ==67 += 3. Add LoRa support to communicate with remote sensor = 319 319 320 -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. 321 321 322 -In theDraginoGateway,we use[[mosquittoclient>>url:https://mosquitto.org/]]forMQTTconnection.70 +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. 323 323 324 324 325 -(% style="color:blue" %)**For Upstream** 326 326 327 - commandis[[mosquitto_pub>>url:https://mosquitto.org/man/mosquitto_pub-1.html]]74 +== 3.1 Use LoRa Raw protocol for communication ~-~- For LG01/LG02 == 328 328 329 -Example: mosquitto_pub -h 192.168.199.148 -p 1883 -t /channel/6543 -m temp=36 330 330 331 -Note: 192.168.199.148 is MQTT broker address, the gateway and the MQTT broker PC are in the same network. 332 - 333 -[[image:image-20220527135310-9.png]] 334 - 335 -mosquitto_pub 336 - 337 - 338 - 339 -(% style="color:blue" %)**For Downstream** 340 - 341 -Use [[mosquitto_sub>>url:https://mosquitto.org/man/mosquitto_sub-1.html]] to subscribe the change on the topic. 342 - 343 -[[image:image-20220527135440-10.png]] 344 - 345 -mosquitto_sub 346 - 347 - 348 -== 4.4 Configure Dragino UI for MQTT connection == 349 - 350 -This chapter are step by step to show to configure the Dragino Menu for MQTT auto connection. 351 - 352 352 ((( 353 - Goto (%style="color:#4f81bd" %)**DraginoMenu~-~->MQTTClient**78 +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. 354 354 ))) 355 355 356 -[[image:image-20220714155901-1.png]] 357 - 358 -go to mqtt configure menu 359 - 360 - 361 361 ((( 362 - Select (%style="color:#4f81bd"%)**ForwardtoMQTTserver**. (% style="color:red" %)**Notice**(%%): Thisoption isremoved from thelatestfirmware,inthelatest firmware,if usersubmit "SAVE & APPLY" in MQTT page, the gateway will useMQTT service.82 +The example Sketch for LoRa Shield +Arduino is here: **[[LoRa_Shield_Sketch_For_MQTT>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]]** 363 363 ))) 364 364 365 -[[image:image-20220527135742-11.png]] 366 - 367 -forward to MQTT 368 - 369 - 370 - 371 -=== 4.4.1 Configure the MQTT Client for Upstream === 372 - 373 - 374 -**Below screenshot is same as the publish command:** 375 - 376 -(% class="box" %) 377 377 ((( 378 -**mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t CLIENTID/CHANNEL/data -m DATA 379 -~/~/where the CLIENTID, CHANNEL & DATA are macro. represent for 380 -~/~/CLIENTID: dragino-1b7060 381 -~/~/CHANNEL: Remote ID in Channel settings; here is 78901 or 567456 382 -~/~/DATA: The data stores in /var/iot/channels/** 383 -))) 86 +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. 384 384 385 - 386 -[[image:image-20220527135828-12.png]] 387 - 388 -MQTT Publish configure 389 - 390 - 391 - 392 -[[image:image-20220527135929-13.png]] 393 - 394 -MQTT Channel settings 395 - 396 - 397 -((( 398 -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: 399 -))) 400 - 401 -(% class="box" %) 402 -((( 403 -mosquitto_pub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t dragino-1b7060/78901/data -m temp=46 404 -))) 405 - 406 -((( 407 -to MQTT broker. 408 -))) 409 - 410 - 411 -((( 412 -Below is a simulation to put this data to active the MQTT publish. 413 -))) 414 - 415 -[[image:image-20220527140023-14.png]] 416 - 417 -MQTT Publish 418 - 419 - 420 - 421 -=== 4.4.2 Configure the MQTT Client for Downstream === 422 - 423 - 424 -Below screen shot equal to this subscribe command: 425 - 426 -(% class="box" %) 427 -((( 428 -mosquitto_sub -h 192.168.199.148 -p 1883 -i dragino-1b7060 -t command. 429 -))) 430 - 431 -[[image:image-20220527140100-15.png]] 432 - 433 -MQTT Subscribe 434 - 435 - 436 -((( 437 -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: 438 -))) 439 - 440 -[[image:image-20220527140148-16.png]] 441 - 442 -LoRa Broadcast parameters. 443 - 444 - 445 -And below is the subscribe simulation: 446 - 447 -[[image:image-20220527140238-17.png]] 448 - 449 -downstream simulation 450 - 451 - 452 -== 4.5 Add LoRa support to communicate with remote sensor == 453 - 454 - 455 -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. 456 - 457 - 458 -=== 4.5.1 Use LoRa Raw protocol for communication ~-~- For LG01/LG02 === 459 - 460 - 461 -((( 462 -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. 463 -))) 464 - 465 -((( 466 -The example Sketch for LoRa Shield +Arduino is here: [[LoRa_Shield_Sketch_For_MQTT>>url:http://www.dragino.com/downloads/index.php?dir=LoraShield/]] 467 -))) 468 - 469 -((( 470 -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. 471 - 472 472 473 473 ))) 474 474 ... ... @@ -485,7 +485,6 @@ 485 485 LoRa Parameter should match 486 486 487 487 488 - 489 489 Below is the test result after the Arduino Sketch is running. 490 490 491 491 [[image:image-20220527140459-19.png]] ... ... @@ -493,16 +493,14 @@ 493 493 Upstream Data Flow 494 494 495 495 496 - 497 497 [[image:image-20220527140542-20.png]] 498 498 499 499 Downstream Data Flow 500 500 501 501 116 +== 3.2 Use LoRaWAN Protocol for communication ~-~- For LG308/LPS8/DLOS8/LG308N/LPS8N/DLOS8N == 502 502 503 -=== 4.5.2 Use LoRaWAN Protocol for communication ~-~- For LG308/LPS8/DLOS8 === 504 504 505 - 506 506 ((( 507 507 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. 508 508 ))) ... ... @@ -511,11 +511,11 @@ 511 511 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. 512 512 513 513 514 -(% style="color: #4f81bd" %)**Video Instruction**(%%): (% style="color:blue" %)[[https:~~/~~/youtu.be/qJTY441-t90>>url:https://youtu.be/qJTY441-t90]]127 +(% style="color:blue" %)**Video Instruction**(%%): (% style="color:blue" %)[[https:~~/~~/youtu.be/qJTY441-t90>>url:https://youtu.be/qJTY441-t90]] 515 515 ))) 516 516 517 517 ((( 518 -(% style="color:blue d" %)**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.131 +(% 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. 519 519 ))) 520 520 521 521 ((( ... ... @@ -536,38 +536,31 @@ 536 536 [[image:image-20220613191345-4.png]] 537 537 538 538 539 - 540 540 (% style="color:blue" %)**Step 4**(%%): Map the Device Address to Remote ID in MQTT server. 541 541 542 542 [[image:image-20220613190635-2.png]] 543 543 544 544 545 - 546 546 (% style="color:blue" %)**Step 5: Upstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server 547 547 548 548 [[image:image-20220527141843-24.png]] 549 549 550 550 551 - 552 - 553 553 [[image:image-20220527141933-25.png]] 554 554 555 555 Choose ASCII Format 556 556 557 557 558 - 559 559 [[image:image-20220527142028-26.png]] 560 560 561 561 LHT65 Decoder 562 562 563 563 564 - 565 565 (% style="color:blue" %)**Step 6: Set up subscribe**(%%)**:** Subscribe a topci for downstream. 566 566 567 567 [[image:image-20220613191426-5.png]] 568 568 569 569 570 - 571 571 (% style="color:blue" %)**Step 7: Downstream**(%%): Save the change, we can see the log info via "sytem log", End Node and MQTT Server. 572 572 573 573 [[image:image-20220527142239-28.png]] ... ... @@ -574,9 +574,6 @@ 574 574 575 575 576 576 577 -=== 4.5.3 MQTT Downstream format === 578 - 579 - 580 580 mosquitto_pub -h $server_address -p $server_port -t $Client_ID -m "**dev_addr,imme/time,txt/hex,payload**" 581 581 582 582 (% class="box infomessage" %) ... ... @@ -588,30 +588,24 @@ 588 588 589 589 (% class="box infomessage" %) 590 590 ((( 591 -**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2 > /var/iot/push/test"**194 +**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2"** 592 592 ))) 593 593 197 +(% 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"]]** 198 + 594 594 Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]] 595 595 596 596 [[image:image-20220613192816-6.png||height="440" width="1056"]] 597 597 598 598 599 - (% style="color:red"%)**Notice: Thetext usefor Downstreammust meet therequirement from [[LG308 DownstreamPayload>>Communicate with ABP EndNodewithout LoRaWAN NetworkServer ---LG308||anchor="H2.2Downstream"]]**204 +== 3.3 Use LoRaWAN Protocol for communication ~-~- For LPS8V2 == 600 600 601 601 602 -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]] 603 603 604 604 209 += 4. How to ask for Support = 605 605 606 -= 5. How to Debug = 607 607 608 - 609 -User can login the gateway's console and run (% style="color:#4f81bd" %)**logread -f**(%%). It will shows the output when there is packet arrive.User can see if it is correct. 610 - 611 - 612 -= 6. How to ask for Support = 613 - 614 - 615 615 If a user still not have trouble making it works. please send a mail to support@dragino.com with the below info: 616 616 617 617 * Detail of your LoRaWAN end node.