/members-area/personalblogs/b/blog/posts/2645-project---piezoelectric-buzzerBuzzer Decision Hardware testing for the buzzer was more of a choice than checking if it actually worked. Getting it to work was fairly simple by just setting a PWM (Pulse Width Modulation) pin to a certain frequency and duty cycle and listening...en-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/2645-project---piezoelectric-buzzerMon, 07 Mar 2016 06:09:18 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:daef8e5b-219c-48e5-938f-9f134af55556jw07521<p>Hi Joel,</p><p>I liked your post. You have a very thorough and precise way of presenting your material. I have found that there are two devices that look very similar to your &quot;Piezo Buzzer&quot;. I like to call one of them a Piezo Speaker as it has no internal oscillator circuitry and responds to a signal just as a speaker would. The Piezo Buzzer on the other hand has its own internal oscillator and will always produce the same sound whenever power is applied. Since you are trying to produce a musical tone is there a reason you aren&#39;t using an actual speaker?</p><p>John</p><img src="https://community.element14.com/aggbug?PostID=21579&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">