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I’m curious why someone might reach for an RPI for a project like this? The last Pi I was using was consuming something like 8 watts while idle. That’s like $1.50 a month in electricity here in the Bay Area...

Many times, an arduino or esp32 would be more than capable with considerably less power usage.

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Interesting point, I hadn't actually considered what the power consumption of RPis is. I use a few around the house to do various things. Honestly though, the only reason I've used one here is that it was lying around unused. As you mentioned, if I were buying something myself I'd use a different, smaller controller.

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