Re: EMC minimill option/Parallel port issues

Ian,

Do you have a schematic that you can share with us?

Paul

> I haven't heard of one of these, but I use a home-built board which is
> simply a handful of LEDs hooked up to a ULN2003 driver chip which plugs

into

> the parallel port and gives a clear indication of what is happening there.
> For switch inputs, you can simply wire a 4k7 resistor from the pin to a 5v
> supply line and then pull it low with a switch to ground. I would think

that

> this is a better way than relying on a program running in the same

computer

> as any faults in the computer are likely to get mimiced or ignored as when
> EMC is running.
>
>
> Ian