I used to be knowledgable in these things but I have had some health problems (stroke and heart attack) which have left me with some blank spots in my memory.
So I would appreciate some help on some things.
I want to drive a piezo device at about 50 or 60 Hz. This will create a ping or beep.
I want it to pulse for a predetermined time each time I press a button.
Do I need current limiting resistors or driver transistor?
Is there any one who can help me with this?
bob
