I have set up a script with an RPi that listens in on MQTT topics and executes a code if a specific message comes up. I am doing this using Home Assistant and the Nabu Casa interface. (https://www.thedigitalpictureframe.com/ ... assistant/
Now, I was wondering if there isn't a way to publish an MQTT message without having to go through Home Assistant first. Alexa has these wonderful routines which allows you to specify a phrase which launches a particular action. However, it is always connected to a device, group or scene which come through a smart home device or in my case Home Assistant.
Would anybody know if there is a way to have Alexa publish a simple MQTT message that is then picked up by the Raspberry Pi.