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Topic: Adding Beep to Every Second (Read 1 time) previous topic - next topic


Jan 24, 2013, 07:45 pm Last Edit: Jan 25, 2013, 12:05 am by 06awaism Reason: 1
Hi, I wanted to know how I can add a 8 ohm speaker to the schematic (see the attachment below) so that the speaker beeps every second? Can you guys think of any methods of adding the speaker to this schematic which may involve an amplifier or any active device ( A device which changes the output signal, e.g 555 timer, amplifier, logic gates). Or I don't mind any other method as long as there is a speaker beeping every second. Thank You.


The output from 555 pin 3 is once per second?
Use that to trigger a burst of oscillations on a 2nd 555 (or use a 556 in place of both) to create the tone for the speaker.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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