Hi People.
Im making some beep sounds in a project, the buzzer is taken from an attack alarm.
I can make the active buzzer make noise in what ever hz i want to, but i cant make it play loud enough for what i need.
Im using 3500hz right now.
The original board is used with 4 button cell batterys i cant remember the voltage but guessing its 6V total + capacitors n forth.
Do i need to use the original board aswell to boost the sounds or some components from it maybe?
The original board might include an amplifier circuit to boost the signal. Check if it has a driver IC or capacitor-resistor network that you can integrate into your project ?
(Active buzzers often require a certain amount of current. It that's the case, your microcontroller's pin can't supply lots of current and so the buzzer's output will be weaker. Using a transistor or MOSFET as a switch to drive the buzzer directly from a stronger power source with a suitable voltage would help)
You can use a transtor, preferably a logic level N channel MOSFET switching the low side of the buzzer. A separate 6 volt pack, positive to the busser, GND common with the controller.
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