A nice article about these kind of buzzers: http://www.thedigitalshop.net/techdocs/piezo.pdf Manufacturer links catalog with some driver examples and data for their piezo's though these have a second wire soldered on the brass plate: http://www.murata.com/catalog/p37e18.pdf http://www.east-mingtao.com/p01_20.htm Hope this helps Peter ----- Original Message ----- From: "Lindy Mayfield" To: Sent: Wednesday, June 16, 2004 3:50 PM Subject: Re: [EE]: Piezo buzzer question, how to connect it > Seriously though, I did try to include most of the useful > information > I've learned over the years and pass it on to others who may not > have > any practical experience with piezo elements. I can be a bit > surly at > times (part of getting older I guess... ;-) but I am really a > generous > and helpful guy at heart. I just get irritated when people don't > put > much effort into learning things for themselves (I'm not talking > about > you in this case, I mean in general). I have very little time or > patience for people that fall into that category. > > Matt > I'm also very generous at helping people, and I too get frustrated when people don't make the effort that I think they should. For example, I will do a lot to help a person learn something, but I draw the line when I think they are trying to get me to do their work for them. (The fish or teach a person to fish deal.) One of the favorite things I do in my job is teach beginners MVS, an IBM mainframe operating system. This keeps me humble. The burden is on me to know and understand the information well enough to be able to convey it to others, especially beginners, no matter their learning style. Some people need things explained in words, some need to see it, some need to actually do things with their fingers (on the keyboard), or perhaps some combination between all three. I'm not having many problems with the programming of PICs. I took to PIC assembler like a duck to water. Logical things, on's and off's, algorithms, protocols, these things I can understand. Ever since I've been a boy I can remember (I'm 40 now) being interested in electronics. And it's taken from then to now for me to learn enough to do the simple things I'm doing now. But unfortunately some things I don't understand just yet. Also sometimes it is hard to ask a question on a list the right way to get the right answer. I try to be brief even if it makes me look stupid, since people's time and the answer is more important than how I look. So I do check the books I have, google, etc. before asking in a public forum. I do have this respect for other people's time. Cheers, Lindy --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.699 / Virus Database: 456 - Release Date: 6/4/2004 -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics