Hoyt
February 19, 2012, 9:30pm
1
On Cobra, how do you increase the peizo volume?
I do :
Utility.Piezo(800, 500); //make sound
and it is very soft, like standing 30 feet from the microwave oven…is there a way to increase the volume, or is this even the proper way to make a tone on the piezo?
What type of piezo buzzer do you use? In general piezo buzzers have a typical resonance frequency. At that frequency they produce the loudest sound.
You can’t change the volume on cobra’s speaker.
Hoyt
February 20, 2012, 11:20pm
4
It is so soft, I can’t imagine how anyone hear’s it when the board is mounted in a case.
What is the piezo part number?.. I want to look up its specs…the part is not on the board documentation, just says PZ1.
If you need louder sound then you need a transistor and possibly 5V or more to control it. On Cobra, the peizo is connected directly to a pin.
Hoyt
February 21, 2012, 4:07pm
6
Do you have a part number for the piezo, wantto look it up.