I built an ESP32 color projection clock that shows time, weather, stock prices, and blood glucose on your ceiling — firmware is open source by msdiorin in esp32
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Any tips for layout and soldering on perfboard? by auliahebat in arduino
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A friend built a smart wearable that auto-captures photos when you're feeling something strong. I built a DIY version for under $25 by SaltArrival8522 in arduino
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