Configure MQTT Publish Buttons

Steps

1. In the MQTT Settings dialog, click the Publish Buttons tab.

The Publish Buttons tab shows a table with columns Label, Topic, and Payload, plus an Internal AetherSDR Topics read-only group box.

1. To add a button:
2. Click Add to insert a new blank row.
3. The Add button is disabled when 12 rows exist (maximum).

4. Enter a Label (button text), Topic (MQTT topic to publish to), and Payload (message to send).

5. To remove a button:

6. Click in the row you want to remove.

7. Click Remove.

8. Click Apply to save your button definitions without closing the dialog, or click OK to save and close.

What the Internal AetherSDR Topics section shows

The Internal AetherSDR Topics group box lists topics that AetherSDR publishes automatically whenever MQTT is connected. Each topic has a checkbox that allows you to enable or disable it individually. Topics marked as gateable (not grayed out) can be toggled; non-gateable topics are always active and shown grayed out.

The publish topics are:

Topic	Description	Default	Gateable
aethersdr/cw/decode	CW decoded text	On	Yes
aethersdr/radio/state	Radio VFO / mode / TX state	Off	Yes
aethersdr/ax25/rx	AX.25 received frames	On	Yes

The subscribe topics shown in the Internal AetherSDR Topics group box on the Subscriptions tab are:

Topic	Description	Default	Gateable
aethersdr/antenna/alias/+	Antenna name (per-port)	On	No
aethersdr/antenna/alias	Antenna names (bulk)	On	No
aethersdr/cw/transmit	CW keyer input	Off	Yes
aethersdr/ax25/tx	AX.25 transmit	Off	Yes

When you enable or disable a gateable internal topic, the setting is stored and takes effect the next time MQTT connects or reconnects.

Maximum number of publish buttons

You can define up to 12 publish buttons. The Add button is disabled when 12 rows exist.

Related

• MQTT Settings overview
• Configure MQTT broker connection (host, port, credentials, TLS)
• Subscribe to MQTT topics and toggle panadapter display
• Configure CA certificate for TLS MQTT