This is a placeholder topic for “Buzzer 5V - Breadboard friendly” comments.
Hey want to hear a really loud noise? Apply 3V to 5V to this buzzer module and you’ll be rewarded with a loud 2KHz BEEEEEEEEEEEEEEEEEP. Unlike a plain piezo, this … read moreRead more
Hi. I’m wondering if there’s a way to control the volume? throwing it on a potentiometer mostly just turns it off instead of adjusting volume. Thanks!
Hmm, I doubt there’s much you can do electrically. The great thing about that buzzer is the driver is all integrated so you don’t have to do anything to get it to work - it just buzzes. The terrible thing is it’s all integrated - you can’t do anything to really make it work the way you want.
Mind you a quick google, and it looks like someone’s had some luck with high-ish frequency PWM:
The ohter thing to note is that a Piezo buzzer probably draws bugger all current and is itself very high impedance. If your potentiometer is either too low or too high of a range, you might not get any practical control out of it, as it’ll be not sensitive enough, or way too sensitive.
Thanks for the information. I think I’ll look for a smaller potentiometer, as being very precise with my current one does set it to an acceptable level.
might also try getting back into arduino, haven’t used one for a good few years by now!
You may also be interested in using two potentiometers for fine and course control of the overall resistance, it may be a little difficult to setup correctly, but the results should be quite useful and it should be fun to learn!
What is the current consumption of the buzzer at 3V3 and 5.0V?
Is it a piezo buzzer and does it need any snubber components.
I am coming across people wanting to drive it directly from a digital output, in particular a Nano33BLE that has only 15mA output capability.
i have not done the math but a 10 turn pot not trim-pot i think they are rated around 3 watts not shore as i said but makes it possible …
Unfortunately the integrated driver is a bit of a black box so we don’t have any specs for it. I would expect the current draw to be quite low, but some experimentation may be needed to find the current draw. I’ll update this thread if I can get some tests done later.
EDIT: I’ve tested the buzzer with our benchtop power supply and a multimeter. It drew 16mA at 3.3 Volts and drew 24mA at 5 Volts.
Oddly the pitch did seem slightly different at 5 Volts, so take the 2 kHz output with a grain of salt.