Fun with the 555 Timer: Wailing "Police" Siren

In this video, I demonstrate the use of 555 timer ICs to recreate the classic up down wailing sound of an emergency vehicle. Just be careful not get arrested for impersonating a police car, as this looks suspicious... just kidding. A PCB has been designed for this, and will be presented in a later video when it's manufactured. Have fun!
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[@marko5472]

Great information, need to watch this several times.

[@jesutofunmikupoluyi]

This is nice! Thanks for the video.

[@mikebond6328]

Cool. Digital to analog.