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A comment on My dishwasher won’t start until I let it update its firmware over the WiFi. Parent comment

Re:My dishwasher won’t start until I let it update its firmw... by goodpoint on Monday January 31, 2022 @10:55AM (#30149382)
In some countries with day/night tariff appliancies can trivially detect nighttime by voltage.

It's been used for decades and it's extremely cheap and reliable.

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Re:My dishwasher won’t start until I let it update its firmw... by jmartinpetersen on Monday January 31, 2022 @11:24AM (#30149775)
Our tariffs for electricity vary by the hour. I don't know how to detect that by voltage?
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