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Replying to @josecastillo
This is actually a trick @adafruit does with their STEMMA boards (and one I learned from Desk of Ladyada a few months back): those green “On” LED’s? They’re current limited with 10K resistors, so they can do indicator duty while absolutely sipping power. https://youtu.be/oR7uGy8ea68?t=1206
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