DIY Electronic Kits LED Gyro DIY Welding Kit Rotating Lantern (with Battery)
7,01 €
When the top is rotated, a straight line will appear on the bright LED. When the battery is installed, the vibration switch S1 is turned off, so the circuit does not work. When the gyroscope is rotated, due to the centrifugal effect, the vibration switch S1 is turned on, and the circuit works.
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