[Microbit-Python] Driving Neopixels with Pxx other than P0, P1, P2?

[Carlos Pereira Atencio]

A bit of shot in the dark, since I haven't really manually driven neopixels
before, but if they run on the 1-wire protocol, don't the need a pull up?
The large GPIO connectors would have a weak pull up on then, so that could
be the main difference.


On 13 December 2016 at 09:40, Nevil Hunt <nevil.hunt at hotmail.co.uk> wrote:

> Hi Damien,
>
>
> Thanks for the suggestion. I gave it a go but unfortunately it didn't
> bring it to life.
>
> I tried P8,12,13,14,15,16 and none of them drive the NeoPixels.
>
> If enabling NeoPixels on these additional Pxx pins would just be a simple
> s/w change it would be good to have as the P0,P1,P2 are precious resources.
>
> Either way this is the first time I've had a play with NeoPixels and they
> are good fun!
>
>
> Cheers,
>
>
> Nevil
>
>
> ------------------------------
> *From:* Microbit <microbit-bounces+nevil.hunt=hotmail.co.uk at python.org>
> on behalf of Damien George <damien.p.george at gmail.com>
> *Sent:* 13 December 2016 02:22
> *To:* For Pythonic MicroBit related discussions
> *Subject:* Re: [Microbit-Python] Driving Neopixels with Pxx other than
> P0, P1, P2?
>
> Hi Nevil,
>
> Neopixels should work on all pins.... make sure the pin is not being
> used for something else (eg display), then try doing write_digital on
> that pin before using it as a neopixel output.
>
> Cheers,
> Damien.
>
> On 13 December 2016 at 06:32, Nevil Hunt <nevil.hunt at hotmail.co.uk> wrote:
> > Hi,
> >
> >
> > I've just got the micro:bit driving the Adafruit Neopixel Feather board
> > using the example Python code in the 'read-the-docs' and it works well!
> (but
> > I might need to buy a new pair of sunglasses!)
> >
> >
> > The 'read-the-docs' says it can use P0, P1 or P2 which I've checked all
> > work. I then wondered if it would work with other Pxx such as P8, P12 or
> P16
> > but it doesn't.
> >
> >
> > Since driving Neopixels is entirely digital is there any fundamental
> reason
> > why the use of other Pxx couldn't one day be enabled?
> >
> >
> >
> > Cheers,
> >
> >
> > Nevil
> >
> >
> > _______________________________________________
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> > Microbit at python.org
> > https://mail.python.org/mailman/listinfo/microbit
>
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> The MicroBit is a small programmable device for children created by the
> BBC (in partnership with various other organisations, such as the PSF).
>
>
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>
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