Alt-BEAM Archive

Message #05824



To: "'beam@sgiblab.sgi.com'" beam@sgiblab.sgi.com
From: Wilf Rigter Wilf.Rigter@powertech.bc.ca
Date: Sun, 22 Aug 1999 16:08:01 -0700
Subject: [alt-beam] Chirper and other sound effects!




ok Sparky,

Here it is!

This circuit uses the 2 spare gates of Ian's reverser circuit and makes
"birdy chirps" when the bot backs up. You can change the sound to "lasers"
by changing the 100K resistors to 1M and many other sounds are possible by
playing around with the other components values.

have fun

<>
Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
tel: (604)590-7493
fax: (604)590-3411

> -----Original Message-----
> From: SG [SMTP:sparkyg@seark.net]
> Sent: Wednesday, August 18, 1999 2:21 PM
> To: beam@sgiblab.sgi.com
> Subject: Re: anuther obsticle avoider thingy
>
> nono, looking for the CIRCUIT that werks.
> already have several piezeo buzzers to choose from.
>
>
> At 11:00 AM 8/20/99 -0400, you wrote:
> >If you are looking for just a light weight speaker, BG Micro has "two
> >bit speakers" (part no. AUD1019). These are about the size of a nickel
> >& 4 for a dollar. These might work. It on page 16 of their catalog
> >
> >SG wrote:
> >>
> >
> >> (another story... can't find a piezeo-type chirper
> >> that werks) and i came across this little schematic
> >
> >SNIP
> >--
> >Pl. remove *s from the e-mail address to reply
> >
> >



Attachment: CHIRP.gif

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