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stabilizer: connect MQTT

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mwojcik 2024-09-25 12:29:21 +08:00
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src/hw/stabilizer.md
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@ -103,3 +103,26 @@ dfu-util -a 0 -s 0x08000000:mass-erase:force:leave
7. Ensure that there is the same wave on the second channel, with a small delay, as on the first channel
8. Repeat steps 4-7 for ADC/DAC1 (refer to the picture below for connection reference)
![](../img/stabilizer_ports_match.jpg)
## Setting up MQTT
For testing the Stabilizer, it's usually enough to do the settings above, as signal is filtered by the firmware. However, if you need to test the network connectivity or Pounder telemetry, MQTT may come useful.
On PC side:
1. Get IP address of your machine, e.g. with ``ip a``. Make note of it, that's the broker address.
2. Get mosquitto, e.g. with ``nix-shell -p mosquitto``.
3. Run mosquitto with the config from Stabilizer repository: ``mosquitto -c mosquitto.conf``
4. If you don't have it yet, download [MQTT Explorer](https://github.com/thomasnordquist/MQTT-Explorer/releases).
5. Call ``nix-shell -p appimage-run``, then ``appimage-run MQTT-Explorer-0.4.0-beta6.AppImage``.
6. Connect to the MQTT broker under your own IP address.
Configure Stabilizer:
1. Connect the Stabilizer to power.
2. Connect USB cable to the Stabilizer.
3. Run ``cutecom`` or your favorite terminal emulator, connect to ``/dev/ttyACM0``.
4. Change the broker setting with: ``set /net/broker "<ip of your machine>"``.
5. Reboot with ``platform reboot``.
Now, disconnect the USB and connect the Ethernet cable to the Stabilizer, as both won't fit at the same time. Stabilizer should connect to moquitto automatically, and you should see the MQTT settings pop up in the MQTT Explorer.