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Replying to @tomfleet and @oakdevtech

funny thing: this comment made me go back to the data sheet for the module I want to use, and it turns out it runs on 3V. I’m shocked, as I’ve never seen one of this type that didn’t run on 5V. So it turns out the whole hypothetical in this thread is moot: I don’t need 5V. 🙃

(original)