This repository contains a Homebridge plugin, which I use to control my Rotel RA-1570 amplifier through Homekit (e.g., "Hey Siri, turn off Amplifier"). The amplifier itself only has a serial port interface, and I had previously written rotel-server.rb, which listens for commands and queries over TCP, and talks with the amplifier over a serial port. The amplifier control server is available in a separate repository.

So, this plugin only works with my specific server (although it would not be too hard to change the underlying rotel.rb to speak a different RS-232 protocol), and as such I don't expect it to be particularly useful for anyone other than myself as is. It does show how to make a Homebridge platform accessory, but other than that my JavaScript coding style is horrible spaghetti and does not set a good example. (In my defense, I used another Homebridge plugin as an example, since I don't really know Node.js myself.)

~ Kimmo Kulovesi, 2020-02-09