On Thu, Feb 12, 2015 at 3:00 PM, Neal Becker <ndbecker2@gmail.com> wrote:
>
> Robert Kern wrote:
>
> > On Thu, Feb 12, 2015 at 2:21 PM, Neal Becker <ndbecker2@gmail.com> wrote:
> >>
> >> I need to transmit some data values.  These values will be float and long
> >> values.  I need them encoded into a string of bits.
> >>
> >> The only way I found so far to do this seems rather roundabout:
> >>
> >>
> >> np.unpackbits (np.array (memoryview(struct.pack ('d', pi))))
> >> Out[45]:
> >> array([0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1,
> > 0,
> >>        0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0,
> > 0,
> >>        0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0], dtype=uint8)
> >>
> >> (which I'm not certain is correct)
> >>
> >> Also, I don't know how to reverse this process
> >
> > You already had your string ready for transmission with `struct.pack('d',
> > pi)`.
> >
> > --
> > Robert Kern
>
> my transmitter wants an np array of bits, not a string

Can you provide any details on what your "transmitter" is?

--
Robert Kern