[Noisebridge-discuss] LED Calculations help
jim
jim at systemateka.com
Mon May 21 14:48:59 UTC 2012
What kind of LEDs? Different types have differing
voltage drops and current ranges.
On Sun, 2012-05-20 at 22:16 -0700, Phil Spitler wrote:
> Hi,
> For simple LED projects, I usually use an online LED calculator to get
> the values for the needed resistors.
>
>
> I have just ordered some LEDs online but the specifications don't list
> the forward voltage, just the current draw.
>
>
> http://www.adafruit.com/products/679
>
>
> How would I figure out how to power the LEDs and what resistors to
> use?
>
>
> I am thinking of using 10 LEDs and having them all powered, all the
> time.
>
>
> I would love to know how to calculate my needs.
>
>
> Any ideas?
>
>
> Cheers.
>
>
> Phil
>
>
>
>
>
> Phil Spitler | Associate Creative Director | Bonfire Labs | t :
> 415.394.8200 | c : 415.571.3139 | Bonfirelabs.com
>
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