[dorkbotpdx-blabber] [GroupOrder] order goes out monday feb 23. guest star: sure electronics

[dan p]

yikes! good call.

I think that $85.86 fall under the WTF catagory.

On Wed, Feb 25, 2009 at 1:08 PM, Eric Garner <garnere at gmail.com> wrote:

> I'm afraid I have some bad news for all of you who were expecting
> goodies from Sure. I have canceled the order to Sure Electronics. I've
> gone around with them for two days now and I cant get the stuff
> shipped any cheaper from them than $85.86 (that's ~$14 a piece). which
> would have been a very rude shock to most of you.
>
> I'm sorry to disappoint those of you that were expecting goodies.
>
> the mouser and digikey parts are fine.
>
> -eric
>
>
> On Tue, Feb 24, 2009 at 9:13 AM, Daniel Johnson <teknotus at gmail.com>
> wrote:
> >> Calculate the resistor value as:
> >>  R = (Vdd - Vf) / If
> >> where Vdd is the supply voltage (5V for Arudino), "Vf" is the "forward
> >> voltage" of the LED (see the spec -- it varies by color; ~2.0V for the
> >> LE-DS151), and "If" is the desired "forward current", which will depend
> on
> >> the desired brightness.
> >> So, the resistance needed to deliver 10mA to the Red LE-DS151 would be:
> >>  R = (5V - 2V) / 10mA = 300ohm
> >
> > The packages with free resistors don't say what the value of the free
> > resistor is.  I had trouble reading the color codes off of the
> > pictures too.
> > _______________________________________________
> > dorkbotpdx-blabber mailing list
> > dorkbotpdx-blabber at dorkbot.org
> > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
> >
>
>
>
> --
> --Eric
> _________________________________________
> Eric Garner
>  _______________________________________________
> dorkbotpdx-blabber mailing list
> dorkbotpdx-blabber at dorkbot.org
> http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://music.columbia.edu/pipermail/dorkbotpdx-blabber/attachments/20090225/3d1e86d2/attachment.html