Hi guys,

    i've been working with pics for several years and  always heard that 
one of the weakness of pics is that it is a uC that get many noise and 
interference.

    Well, i'm living this problem now.

    I have a PIC18F252 based circuit that uses CCP to count pulses from 
a sensor. It all works fine, but:

    If someonse uses one of those devices made of piezzoeletrical 
crystal to fire kitchen ovens, the pic starts counting pulses from 
nowhere! I can even disconnect the sensor, or add as many filters as i 
want, but the pic still counts pulses from nowhere.

    Any help, oppinion, hint will be greatly accepted.

    thanks for your attention

Rafael.

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