Andy,
This link shows how to connect leds to the parallel port for testing.
http://www.epanorama.net/circuits/parallel_output.html
I took a printer cable and hacked one end off and used that when I was testing
my
parallel port. Then when I got my BOB with leds from CNC4PC testing was easy.
Thanks Alex and John for the suggestions. I will pass them along! :)
Andy
John Thornton wrote:
Andy,
This link shows how to connect leds to the parallel port for testing.
http://www.epanorama.net/circuits/parallel_output.html
I took a printer cable and hacked one end off and used that
Hi, Is there an easy way of testing the parallel port without having an
oscilloscope? A friend's controller board started smoking (Z axis driver
chip) and now none of the axis work. It's pretty easy to replace chips,
check solder joints, etc. but how to test the parallel port?
thanks, Andy
--
I usually use a wire to connect an output to an input, then use halmeter
to see if it toggles.
But in some cases this might not work (needs pull-ups or such)
Regards,
Alex
On Tue, 2008-08-12 at 09:24 -0700, Andrew Ayre wrote:
Hi, Is there an easy way of testing the parallel port without having
