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howto:mqtt [2022/12/12 00:55] – created nelgin | howto:mqtt [2023/08/04 20:29] – It's "MQTT" digital man | ||
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- | ====== | + | ====== |
This is a bit of a stub for MQTT but it'll help you get going, on Ubuntu at least. | This is a bit of a stub for MQTT but it'll help you get going, on Ubuntu at least. | ||
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Once compiled and installed, run scfg, make some small change and then save. This will now add a mqtt section to main.ini. Change the host and port (default to 127.0.0.1 port 1883) | Once compiled and installed, run scfg, make some small change and then save. This will now add a mqtt section to main.ini. Change the host and port (default to 127.0.0.1 port 1883) | ||
- | apt install mosquitto mosquitto-clients | + | |
Additionally, | Additionally, | ||
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Mosquitto will install and start automatically but you won't see any messages. If you wish to see them, then stop the broker | Mosquitto will install and start automatically but you won't see any messages. If you wish to see them, then stop the broker | ||
- | # systemctl stop mosquitto | + | |
and run it manually | and run it manually | ||
- | # mosquitto -v | + | |
+ | |||
+ | To continue running as a service CTRL-C to stop mosquitto and then restart | ||
+ | |||
+ | sudo systemctl start mosquitto | ||
+ | |||
+ | |||
+ | At this point you should probably rebuild sbbs so that libmosquitto will be picked up and included in libsbbs.so. You can verify this with the following command: | ||
+ | |||
+ | | ||
+ | libmosquitto.so.1 => / | ||
+ | |||
+ | If there is no response to the command, then a recompile is necessary. | ||
Now start sbbs and you should see the following lines in your log | Now start sbbs and you should see the following lines in your log | ||
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Dec 12 02:13:08 bbs synchronet: MQTT lib: mosquitto 1.6.9 | Dec 12 02:13:08 bbs synchronet: MQTT lib: mosquitto 1.6.9 | ||
Dec 12 02:13:08 bbs synchronet: MQTT connecting to broker 127.0.0.1: | Dec 12 02:13:08 bbs synchronet: MQTT connecting to broker 127.0.0.1: | ||
- | + | ||
- | + | ||
If you see a " | If you see a " | ||
At this point you should see messages from sbbs being passed into the Mosquitto broker | At this point you should see messages from sbbs being passed into the Mosquitto broker | ||
+ | ``` | ||
1670834270: Received PUBLISH from auto-FEB8177A-5A3E-5EE9-6AA3-9CE9BE593CA3 (d0, q0, r0, m0, ' | 1670834270: Received PUBLISH from auto-FEB8177A-5A3E-5EE9-6AA3-9CE9BE593CA3 (d0, q0, r0, m0, ' | ||
1670834270: Received PUBLISH from auto-FEB8177A-5A3E-5EE9-6AA3-9CE9BE593CA3 (d0, q0, r0, m0, ' | 1670834270: Received PUBLISH from auto-FEB8177A-5A3E-5EE9-6AA3-9CE9BE593CA3 (d0, q0, r0, m0, ' | ||
+ | ``` | ||
Now, to install a client to view the messages. | Now, to install a client to view the messages. | ||
- | wget https:// | + | wget https:// |
then | then | ||
+ | dpkg -i v1.9.0/ | ||
run mqttx to start the package. | run mqttx to start the package. | ||
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Now enter the path which will be sbbs/ followed by your BBS's short name, EOTLBBS in my case. You'll find it on your logs. | Now enter the path which will be sbbs/ followed by your BBS's short name, EOTLBBS in my case. You'll find it on your logs. | ||
- | # sbbs/ | + | sbbs/ |
The # at the end like similar to a wildcard and will show you all the messages. | The # at the end like similar to a wildcard and will show you all the messages. | ||
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- | dpkg -i v1.9.0/MQTTX_1.9.0_amd64.deb | + | One more tip, if you're starting sbbs from systemd (and why wouldn' |
+ | |||
+ | Changing the sbbs service file " | ||
+ | |||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | |||
+ | After making changes to your sbbs service file, Be sure to run | ||
+ | |||
+ | sudo systemctl daemon-reload | ||
+ | |||
+ | This is a list of data points captured during a short run. Obviously if you use these, replace your BBS's system name and hostname. | ||
+ | |||
+ | < | ||
+ | sbbs/EOTLBBS/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | sbbs/ | ||
+ | </ | ||
+ | |||
+ | Note, the numbers at the end of the log outputs is the log level. These may be subject to change in future and may be added to or removed. | ||
+ | |||
+ | For collecting data and viewing, I highly recommend Node-Red. You can find installation instructions online and should be able to figure its usage but I highly recommend using the current node.js (Node 18 currently) and install the Dashboard module (which will not run on the Ubuntu provided version of node.js). | ||
===== See Also ===== | ===== See Also ===== | ||
* [[: | * [[: | ||
+ | * [[: | ||
- | {{tag>}} | + | {{tag>mqtt}} |