Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
lisoff said:yea the thing is that i have never used a PIC and have no idea how to program one so that presents a problem could it be done with a 555 timer??? also do i need a audio generator or something???
National's LMC555 is guaranteed to work with a supply as low as 1.5V.Dr.EM said:3v is a bit difficult, it might work, but the battery voltage will drop over its life, and the operation will probably stop fairly quickly. 5v+ is more suitable.