Difference between revisions of "Capacitive proximity detector"
From ScienceZero
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Latest revision as of 14:46, 23 March 2008
This circuit uses a NE555 IC to make an oscillator. Anything in the field emitted by the antenna will change the capacitance / inductance of the circuit and the result is a change in frequency / duty-cycle that can be detected on the output signal. It is good for robots or any other project that needs to detect objects. The values of the resistors R1 and R2 are not critical.
