I am driving a piezo buzzer (RS 273-074 3-16v DC) from one of the outputs of a PIC16F88. I am getting a very faint buzz from the buzzer even when the PIC output is low (almost like I am picking up the clock oscillations).
I have tried .01uf caps both in parallel and series with the buzzer. I have also tried .01uf on the power supply leads of the PIC. I have also tried pulling the buzzer H and L with 10K resistors.
Any ideas how I can supress the noise.
Thanks