Hi Melanie

Thank you very much for the explanation, now I understand better.
I think I will defenately use the piezo's.

My piezo only use 1mA.

I'm using the PWM function to produce a beep on a piezo.
Will it be correct if I use the schematic displayed at the PWM section in the Picbasic Pro Manual.

Currently I have connected the piezo directly between PortC.2 and GND and then in my code use <b>PWM PORTC.2,230,7</b>.
Will this configuration of connecting the piezo directly between PortC.2 and GND affect my circuit in any way?