Quote:
Originally Posted by dpeterson3
The electroscope is designed to sense changes in the electric field around the object. If a robot got closer, the field would change, right?
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While that circuit will detect changes in the EM field, it may not do what you want.
First, the number of windings in the antenna, length of the antenna, and the values of the RC circuit (coupling) behind the antenna will affect the efficiency of the antenna and center frequency.
The other issue you'll face is filtering out the changing EM from your own machine. Your motors (Being closer to your antenna than any other robots motors) will greatly affect (possibly even completely washout) your ability to see another robots EM field.