Buzzer on Raspberry Pi

[john2k]

I've managed to work out how to use python and activate either the 3.3v or the 5v GPIO ports on the raspberry pi. For my testing i hooked up a single LED with a resistor to the port. But for my project one of the ports will need a buzzer connected to it.

I've never worked with buzzers and have come across the following one: http://www.maplin.co.uk/p/low-profile-pcb-mounting-buzzer-ku58n

Question is, if i provide a continuous feed of either 3.3v or 5v to the buzzer does that mean the buzzer will beep while the supply live and stop when i turned off the supply? so hence if i wanted a beep beep noise i would command the supply to start stop at an interval?

Also does a buzzer need a resistor like the LED does?

Thanks

 

[GreenGiant]

It will do what you want, you do not need a resistor, one to the switching output, one to gnd (or return) then switch away and it should buzz.

One thing to note though, it is a PCB mount, meaning it just has 2 short leads coming off of it (8mm), you can find similar ones with 6inch wire leads for use with breadboard or things like that.