@chrisdo Are you going to order some?
But not sure whether this works, since it states "Transducer, Externally Driven".
Edit: Datasheet looks like it needs a square wave input, bummer.
If the buzzer port would output a ~7kHz square wave - these would just work, maybe it could be done without additional circuitry? At least on an F3 running at 8kHz looptime I could imagine that you could simply do something like:
static int squareWave = 0;
if (beep) squareWave = squareWave ? 0 : 1;
Would maybe be a neat idea to coordinate digikey group orders for us Germans, since we could easily reach "free shipping" then.