Hi, I am looking for a component to control from a microcontroller to make a beeping noise, nothing to loud but to sound electronic and not like a buzzer. I just need an audible alert that is not to irritating. Any ideas would be great, I don't have a DAC on the microcontroller, and the simpler the better.
Thanks
Go to the DigiKey website, type 'audio' into the search box, and you'll get a couple thousand beepers, buzzers, sirens and speakers to choose from.
HTH
Go to a Radio Shack store if there are any in your area, they have beepers.
Shaun
make
Define 'simple'. If your microcontroller has spare PWM or frequency outputs, a capacitor and a speaker (or even an earbud from a broken headset) will do the job. Is size important (wristwatch-style piezoelectric transducers are small), or parts count (there are sonic-output functional modules), or mounting in a panel (things like Mallory Sonalert come with mount hardware kits)?
In terms of simplicity of wiring, you could use a relay to control your doorbell (which might be a full four-second Westminster chime with motorized sequencing), it'd STILL be 'simple' in some sense.
make
Or the traditional way, a unijunction transistor feeding a speaker, which beats a 2transistor multivibrator feeding a speaker since it uses=20 one active component (albeit one likely harder to find).
555s basically took over that field when they came along.Michael
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.