Doorbells have come a long way from the original pulley-and-bell systems of the olden days. Electrically-powered doorbells have been commonplace in most homes now for some time. For a long time, your ...

Recently I wrote in this column that every component in a controls circuit is a power supply, a switch or a load — no other possibilities. And that means that every control, hydronic or otherwise, is ...

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Wireless networks may be convenient, but wired networks beat Wi-Fi in every other way. Wired networks are faster, they’re always reliable, and they’re secure. Unless you’re sitting on the couch with a ...