SynthModules

After playing with the VFD display on my PSIM I decided I did need a 
display on my synth.  Mounting it as a module is impractical since it 
takes width and you really need to be able to see it so I mounted it 
in a small portable enclosure.  I power it with +5 volts and can
drive it with MIDI or 38,400 serial (e.g. AUX output using serout
command).
 
Not sure how practical it is but I thought the programming would be 
fun.  Now I can display various messages and speech under voltage 
control!

Photos at
http://modularsynthesis.com/display/display.htm

--- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:
Finished my LCD module today.  Took just a handful of parts
and ~550 lines of code.  Photos at
http://modularsynthesis.com/display/display.htm

Based on a conversation with Brice, I started experimenting with the
s_out pin.  Adding a 4k7 resistor between pins 2 and 5 of a 9 pin
D-sub connector provides another output that I now use to drive my
lcd display module.  The RS-232 driver on the AtomPro 'steals' -12V
from serial-in for the negative reference for serial-out.  Since
I'm not using serial-in there is no ground reference.  The 4k7
resistor provides an adequate pull down to provide a reasonably fast
serial signal. I use 38400 baud to drive the display (I may
experiment with increasing this to 57600 baud).  Now I can use all
my PSIM outputs and drive the lcd display from the programming port.
I just had to make a 9 pin D-sub to 1/4" cable and add the resistor
in the connector shell.

Dave

--- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:

> --- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:
> Finished my LCD module today.  Took just a handful of parts
> and ~550 lines of code.  Photos at
> http://modularsynthesis.com/display/display.htm