This article showed how an existing "dumb" thermostat can be replaced by a home-made smart and connected one suitable for home automation. Cobbling up a prototype that roughly does what it is supposed to do was not too difficu turning it into something that can be used by anyone at any time and that is aesthetically acceptable required some more effort. No doubt the new thermostat will need some fine-tuning, but since it can be programmed remotely (in-the-field, as they say), this is easy to do.
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