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I'm filling 5 gallon bottles with a slow 50GPD reverse osmosis system in a kitchen that is 100 degrees most of the time. I want to have it notify me when the bottle is almost full as I have forgotten and flooded the damn kitchen 3 times now.
it's just on a tiny circuit board. It's the button on the Amazon Dash Button. I wanted to make this as cheap as possible and these sell for only 5 bucks.
How would I modify this to "press" a button instead of the led? I am considering coupling this with a dash button for an ultra cheap smart sensor! So how would I make this activate the button?
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