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Topic: Using an Alarm Siren on Arduino UNO (Read 1 time) previous topic - next topic

CVieira

Hi there, im begginer in Arduino and im making a Fake bomb project to my Airsoft Team, the problem i have is that with the Piezo the sound is too low, i tried to connect a 12v Siren to it but because the Arduino only sends 5v out the sound its about the same as the piezo, any ideas how can i give more power to the siren to use the full power of it, i leave here the code and the schema and the siren im using, thank u in advance.

Link to Schema and Code

manor_royal

Use a transistor controlled by the Arduino, to switch the 12V. There are loads of examples: search for "arduino transistor switch" or similar.

If this was a Civil Engineering forum would there be posts like "I need to build a bridge. Someone send me drawings."

CVieira

Is this what u meant?? (see image attached)

manor_royal

If this was a Civil Engineering forum would there be posts like "I need to build a bridge. Someone send me drawings."

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