Ive just set up a parallel vfd and well im wondering if its possible to wire up the other parrallel pins to a couple of buttons/keypad that i can also mount on the front of the vfd panel. Something like the matrix orbital inputs? Im running a noritake itron 2x20 module...
That has some GPI's doesn't it? Just hook up a few PTMs to the GPI's and play around with LCDC for a while.
I think you're thinking about the serial graphics I reviewed... none of the parallel alphanumerics I've looked at have had inputs, and I'm sure the only parallel interfacing lcdc is capableof is simple outputs (with a bass plugin). You can do this, though I never have I think you'd need to flip the state of the R/W parallel pin when you want to send a press, and just send a ttl 8 bit word using pins 2-9 - but I could be wrong! Rob.
im currently running my vfd with a winamp plugin, the one listed in the lcd faq erm... Winamp2 plugin and under the input tab it states that it can use inputs from the parallel port. So i presume there is a way to wire it up... its been a while since i did any serious electronics, and thats way above my head Think im gonna have to grab a copy of the art of electronics