I use a Raspberry Pi to drive two sets of speakers using Snapcast.
To maximize the range of my Bluetooth speaker, I bought a Realtek
RTL8761B-based USB Bluetooth dongle with a large antenna.
To get the Bluetooth dongle to work with the latest kernel drivers and
bluez-alsa, I had to abandon Raspbian Linux and use the latest Debian Linux
instead.
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We used to have a gas-powered central heating system that had no external
controls other than radiator valves. It had a sun-exposed exterior
temperature sensor on the west side of the house that caused it to refuse to
heat in the evening.
I wanted to fix the issue and control it via Home Assistant, and since only the
newer models had bus control, I resorted to manipulate the outside sensor
readings and designed a man-in-the-middle device.
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