Tone Generator with 555

Posted on Feb 27, 2013

this tone generator can be used to control your robot. you will need to use the tone decoder for this. to widen the range, higher or lower - substitute a higher, or lower valued capacitor for c1. for frequencies about 5khz and 15khz, use a piezoelectric element as the speaker. Use a miniature speaker for frequencies under 5khz, and use an ultrasonic transducer for frequencies over 30khz.

Tone Generator with 555
Click here to download the full size of the above Circuit.

all resistors are 5 or 10 percent tolerance, 1/4-watt all capacitors are 10 percent tolerance, rated 35 volts or higher

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