[PD] Razor AHRS via comport: 4byte float?

[Martin Peach]

In the Pd svn I have an external [b2f] which probably does what you want.
Not sure if it made in into Pd-extended yet as there don't seem to be many
recent builds available, but it should be straightforward to compile.

http://sourceforge.net/p/pure-data/svn/HEAD/tree/trunk/externals/mrpeach/serializer/

Martin

On Sun, Oct 19, 2014 at 10:48 PM, Peter P. via Pd-list <pd-list at lists.iem.at
> wrote:

> Dear Pd-list,
>
> I am trying to get a Razor AHRS sensor to work with Pd using its
> comport external.
> This sensor sends three angles (yaw, pitch, roll). Each of these
> angles is said to be sent as a 4 byte (single precision) float value.
>
> This float value arrives in Pd from comport's outlet as three values
> 0-255.
> The byte order is little-endian.
>
> I understand that a 4byte single precision float has a 1bit sign,
> an 8bit exponent and a 23bit mantissa.
>
> After five hours of trying I am wondering how I could convert this
> number into a Pd float.
>
> I would be delighted to receive any pointers as I have run out of
> ideas by now.
>
> thank you so much!
> P
>
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