Buzzer on AVR-MT-128

Development Boards MicroMod
1

All,

I am using Bascom and I am trying to use the buzzer but I am having some type of issue.

From the C code for the test of the AVR-MT, it appears that you are setting the PINE.4 low and PINE.5 high, waiting 125us and then doing the opposite.

Is this correct or is my understanding wrong?

2

Hi,

you are correct

to sound the buzzer must receive oposite and changing voltages on it’s terminals i.e. 0/5V - 5V/0 - 0/5V

Tsvetan