Using this bridge you can control a variety of Node-RED endpoints, such as MQTT, HTTP(S), Yamaha AVRs, Chromecast (anything that has a Node-RED integration). This bridge currently supports Power, Brightness, Colour, Colour Temperature, Input, Lock, Thermostat, Playback, Step Speaker and Scene control.
You'll need to follow the instructions here to get up and running: https://red.cb-net.co.uk/docs