How to connect Buzzer to PIC?

[Telemachus]

You've got the pinout wrong... the 22K resistor is on the base, the emitter looks to be tied to ground (check it with a meter). It sounds like the piezo is in the collector making it an open collector. You can tie the coil in parallel with the piezo to get the same flyback effect that Mark_s was talking about. Again, it's resonant so you have to play with the frequency to get it to "go"...

Thanks, after some more research, I realized the true pinout.

Actually, what I am trying to do is to remove the coil and piezo entirely, and have the transistor act as a switch to turn on and off a higher voltage (3.3volts) that will be fed to the input pin of a PIC. Therefore, when the kitchen timer goes off, the PIC will read the PWM output as a digital signal to run a routine prior to resetting the kitchen timer to start counting again.

What I have come up with so far is to disconect the coil from the transistor's collector, mount instead a 3k3 resistor between the collector to PIC VDD (3.3V) and connect the PIC input pin on transistor's colector. With the emitter of the transistor connected to GND (I will ground the PIC to the CMOS circuit). That way, when the timer goes off, it should trigger a "buzzer" that in non audible, but compatible with the VDD voltage that my PIC can read digitally.

This is a timer circuit to snap the shutter on a Cannon SLR camera, and I have found that using the kitchen timer is cheaper than it would be to buy the LCD and buttons needed build the circuit completely based on a PIC.