View Full Version : Co2 Gas Alarm

03-05-2010, 10:32 AM
I programmed my piezo speaker to play an alarm when detecting Co2 gases.

I have included the code for it in the attachment, but if you are annoyed easily, I wouldn't recommend programming it into your speaker.

I am also looking for any tunes that can be played on the piezo, in particularly Battle Hymn of the Republic, or anything with a catchy rhythm, post if you have any to share.

Change is inevitable - except from a vending machine.

Robert C. Gallagher