On Thu, 08 May 2014 18:58:31 BST "Steve Simon" <st...@quintile.net> wrote: > I have a hifiberry (http://www.hifiberry.com/) nicely minimalist, > though no driver at present - I will await the GSOC project :-)
> I have some itron VFDs from work, 256 x 64 pixel. I like these as > the visibility is excellent. The only annoyance is they have > a parallel interface and I use up all the PI's GPIOs. > I also need to interface a rotary encoder for the tuning knob which > is also a pain - not complex enough to justify an FPGA, but a bit too > much to poll when the PI is doing audio decode as well. No need for polling. The BCM2835 can handle edge triggered interrupts. Or you can use a PAL or CPLD. > Thinking of adding a PIC or an AVR just for the encoder / VFD interface > and talking i2c to it.
