Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now


555 Timer Annoying Beeper | PCB Design

555 Timer Annoying Beeper
Version 1 - Last update: Oct 4, 2015

This is a simple 555 timer circuit which produces a beep from the piezo speaker every half hour. Hide it in your nemesis's house to slowly drive them insane.

No description...
Tags: none
License: CC-BY-SA 3.0
Comments disabled