using crystal instead of resonator on RBBB

[yosh]

hi, i bought 10 rbbb board thinking it would be easy finding a local supplier for the 16 MHZ ceramic resonators... guessed wrong.
searching online i see i can replace that with a slightly easier to locate crystals and a cap.

Option 1:
16MHz Ceramic Resonator Jameco# 324662

Option 2:
16MHz Crystal HC49/US Jameco# 325139
20pF Ceramic Disc Capacitors Jameco # 332321 (x2)

via http://www.arduino.cc/playground/Learning/Standalone

but im lacking the wiring diagram for that combo. any help welcome.

yair

[floresta]

You need a capacitor from each end of the crystal to ground. Paul has added pads for surface mount capacitors on the bottom of the BBB boards after Rev C or so, but the RBBB doesn't have much space so I doubt he has added them to the boards since I got mine. If you have to order parts anyway, and you don't need the added accuracy of a crystal, then you would be better off getting the resonators. I got some from DigiKey http://parts.digikey.com/1/parts/403831 ... -00mx.html.

Don

[paul]

Yosh,

I have both resonators and crystals up at moderndevice.com

http://shop.moderndevice.com/products/16-mhz-resonators
http://shop.moderndevice.com/products/1 ... capacitors

It isn't too bad a job to add a crystal on an RBBB with two .0603 sm caps on the bottom side of the board connected to the (otherwise unused) ground hole in the middle.

Hope that helps,

Paul

[yosh]

already bought from a different supplier at twice the price

[flink]

/snipz
I have both resonators and crystals up at moderndevice.com

http://shop.moderndevice.com/products/16-mhz-resonators

/snipz


Paul

Paul, does that pack have both, the SMD and the can capacitors? I'd prefer cans since I'm not really up to doing any smd work.

[paul]

Sorry - missed the question. The crystal kit comes with both varieties of caps.