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Capacitor delay-off timer

Press the button and the LED stays on for a while after you let go.

Open in the 3D builderReserve a kit
+−3V220Ω10kΩNPNNPN+470µF
ReadyPress and hold the buttonThis circuit waits for you. Press and hold the push button (or the touch pads on the X Junction).

Try this

Hold the button for a second, then release.

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