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Topic: looking for a louder buzzer (Read 3071 times) previous topic - next topic

CrossRoads

5V/25mA = 200 ohm - so  180, 220, those are standard values.
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.


hydronics

I figured it out how to make a Piezo loud after way too long.  You add an Auto-transformer to the circuit that you can get at the dollar store. I made an instructable on it here:

http://www.instructables.com/id/How-to-make-an-Arduino-driven-Piezo-LOUD/

robtillaart


check - http://forum.arduino.cc/index.php?topic=143940.0 -
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

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