After uploading the code the Piezo will start making short beeps. On bright light the Piezo will only beep and on dark light it will be short. Some ideas for this experiment: Alarm for Lights in the ...

Figure an Arduino most matches the "Other" category. ... These piezo buzzers can be corrected directly to a DC ... For example, at 192 (75% duty cycle) there is NO sound, at all. At a 50% ...

I dug up a piezo buzzer and some LEDs and started looking around to see what code examples I could repurpose. I found a post on making music using a piezo buzzer , so I altered that code to make ...