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Hacking a USB battery bank to gather telemetry

Reading Time: 2 minutes Arduino Team โ€” November 17th, 2021 USB battery banks are a dime-a-dozen and useful for recharging all of those devices in your life. But the typical cheap battery banks donโ€™t provide you with much information about their status. You usually just get a few LEDs that provide a very general idea of how much battery […]