ive been wondering on how well the parport would work for a pwm based DAC,
i'm interested in getting enough from it to test out and play with my servo
amps and motors and encoders... and i'll need to hook up the VFD as well
once i get the axis and limit switches and all that fun stuff going, but i
I would like to build a parallel port DAC board capable of running a
VFD. My VFD's use 0 to +10 Volts for setting speed, then a Forward and a
Reverse pin which sink to a Common. My plan so far, includes a pair of
74244 buffers, maybe a 7224 8-bit DAC, +10 Volt regulator, +5 Volt
regulator and a pai
