40kHz Crystal for Sonar
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Posts: 46,084
I want to build the Sonar project in Scott Edward's book. It calls for a
40kHz Quartz Crystal, and he suggests Digi-Key SE3316-ND.
Does anyone know of another place to buy one? I don't have need for
anything else from Digi-Key ( i.e. $5 shipping for $1.23 item ).
Jameco does not have the 40kHz Microprocessor Crystal, but it does have TTL
Crystal Clock Oscillators ( part 153226 ). Can I use
this instead ? Jameco also has the transducers, so it would be nice if I
could buy every thing from there.
Any help would be appreciated. Thanks
Bryan Smith
40kHz Quartz Crystal, and he suggests Digi-Key SE3316-ND.
Does anyone know of another place to buy one? I don't have need for
anything else from Digi-Key ( i.e. $5 shipping for $1.23 item ).
Jameco does not have the 40kHz Microprocessor Crystal, but it does have TTL
Crystal Clock Oscillators ( part 153226 ). Can I use
this instead ? Jameco also has the transducers, so it would be nice if I
could buy every thing from there.
Any help would be appreciated. Thanks
Bryan Smith
Comments
2001 catalog they have Microprocessor crystals but nothing at 40kHz.
>
Original Message
> From: bs2web@y... [noparse]/noparse]SMTP:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=7M6xDGkTHT5dMDqYisd8CG53P8_0G6BJoWeD1uUALi20J6RjFXCKlt3fcxW-pWg4zm8f1hD5CgY]bs2web@y...[/url
> Sent: Tuesday, June 19, 2001 3:49 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: 40kHz Crystal for Sonar
>
> Hi Bryan,
>
> Check the Radio Shack commercial catalog (or Radioshack.com). You
> may be able to have them delivered to the store for free or a
> discounted price.
>
> --Jeff Wallace
>
> * Add a RTC, 256k EEPROM and an I2C bus to your BS2
> http://www.high-techgarage.com/products/timekeeper.php
>
> --- In basicstamps@y..., Bryan Smith <bsmith@w...> wrote:
> > I want to build the Sonar project in Scott Edward's book. It calls
> > for a 40kHz Quartz Crystal, and he suggests Digi-Key SE3316-ND.
> >
> > Does anyone know of another place to buy one? I don't have need for
> > anything else from Digi-Key ( i.e. $5 shipping for $1.23 item ).
> >
> > Jameco does not have the 40kHz Microprocessor Crystal, but it does
> > have TTL Crystal Clock Oscillators ( part 153226 ). Can I use
> > this instead ? Jameco also has the transducers, so it would be
> > nice if I could buy every thing from there.
> >
> > Any help would be appreciated. Thanks
> >
> > Bryan Smith
>
>
> To UNSUBSCRIBE, just send mail to:
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> and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
Check the Radio Shack commercial catalog (or Radioshack.com). You
may be able to have them delivered to the store for free or a
discounted price.
--Jeff Wallace
* Add a RTC, 256k EEPROM and an I2C bus to your BS2
http://www.high-techgarage.com/products/timekeeper.php
--- In basicstamps@y..., Bryan Smith <bsmith@w...> wrote:
> I want to build the Sonar project in Scott Edward's book. It calls
> for a 40kHz Quartz Crystal, and he suggests Digi-Key SE3316-ND.
>
> Does anyone know of another place to buy one? I don't have need for
> anything else from Digi-Key ( i.e. $5 shipping for $1.23 item ).
>
> Jameco does not have the 40kHz Microprocessor Crystal, but it does
> have TTL Crystal Clock Oscillators ( part 153226 ). Can I use
> this instead ? Jameco also has the transducers, so it would be
> nice if I could buy every thing from there.
>
> Any help would be appreciated. Thanks
>
> Bryan Smith
performance of my Sonar circuit be degraded if I choose to not use the
crystal and use the 555 instead ?
>
Original Message
> From: Bryan Smith [noparse]/noparse]SMTP:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=qZyQOZZwff2KdFhsI6RnKga_K2KZSW0M2zkNeKNnAtR-c3XlosEycvti4lkUcQRjpb-tsUh2qjHOJrxlbw]bsmith@w...[/url
> Sent: Tuesday, June 19, 2001 3:15 PM
> To: 'basicstamps@yahoogroups.com'
> Subject: [noparse][[/noparse]basicstamps] 40kHz Crystal for Sonar
>
> I want to build the Sonar project in Scott Edward's book. It calls for a
> 40kHz Quartz Crystal, and he suggests Digi-Key SE3316-ND.
>
> Does anyone know of another place to buy one? I don't have need for
> anything else from Digi-Key ( i.e. $5 shipping for $1.23 item ).
>
> Jameco does not have the 40kHz Microprocessor Crystal, but it does have
> TTL
> Crystal Clock Oscillators ( part 153226 ). Can I use
> this instead ? Jameco also has the transducers, so it would be nice if I
> could buy every thing from there.
>
> Any help would be appreciated. Thanks
>
> Bryan Smith
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed with. Text in the Subject
> and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
i have built that very circuit for a science fair
project. i used the triple nickle to generate the
frequency for the sonar (use the 40khz sensors which
do not need too much power to stimulate a signal)
it is very helpful to use an oscilloscope
to tune the circuit, ie to determine the
resistor/capacitor values which determine the
frequency of the triple nickel timer.
if you try to absolutely copy scott's circuit it
probably will not work for you. the circuit does work,
but you have to play with the resistor/cap values, and
therefore the o-scope helps.
the sonar works great when you get the freq right.
i also found that using a transmitter/receiver pair
which you can buy "matched" helps.
bill hart
--- Bryan Smith <bsmith@w...> wrote:
> I've seen where I can create a circuit using a 555
> oscillator. Will the
> performance of my Sonar circuit be degraded if I
> choose to not use the
> crystal and use the 555 instead ?
>
> >
Original Message
> > From: Bryan Smith [noparse]/noparse]SMTP:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=eHIvyFzUU2ftF3apAdi4DtSYptWCp6qlJz6FXa-qtBFlAHWC5fBP1PtEXe7I32s-E1C_90pZn-LDGPw]bsmith@w...[/url
> > Sent: Tuesday, June 19, 2001 3:15 PM
> > To: 'basicstamps@yahoogroups.com'
> > Subject: [noparse][[/noparse]basicstamps] 40kHz Crystal for Sonar
> >
> > I want to build the Sonar project in Scott
> Edward's book. It calls for a
> > 40kHz Quartz Crystal, and he suggests Digi-Key
> SE3316-ND.
> >
> > Does anyone know of another place to buy one? I
> don't have need for
> > anything else from Digi-Key ( i.e. $5 shipping for
> $1.23 item ).
> >
> > Jameco does not have the 40kHz Microprocessor
> Crystal, but it does have
> > TTL
> > Crystal Clock Oscillators ( part 153226 ). Can I
> use
> > this instead ? Jameco also has the transducers,
> so it would be nice if I
> > could buy every thing from there.
> >
> > Any help would be appreciated. Thanks
> >
> > Bryan Smith
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed
> with. Text in the Subject
> > and Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> >
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed
> with. Text in the Subject and Body of the message
> will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
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