Electronics Weekly (blog) Raspberry Pi , turn on the central heating please Electronics Weekly (blog) Dubbed Pi Cubes, it uses a Raspberry Pi B+/A+, or Raspberry Pi 2 board to control systems in the home operating HVAC equipment such as heating boilers and humidifiers. The system supports up to 24 I/Os and 4 thermostats

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Raspberry Pi, turn on the central heating please – Electronics Weekly (blog)