Inside the fan is a tiny motor. When it receives a signal, it spins. The more signal it receives, the faster it spins.
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This boat floats and moves on water
It gives air conditioning and it has lights and it makes sound and has a servo
You can switch the light/dark sensor to what you want,and the lighter/darker it is, the more the...
My invention can cool you down, help you read at night in secret, take pictures, and make a loud,...