Re: [CAD_CAM_EDM_DRO] Re: Opto / relay recommendation

On Thu, 30 May 2002 22:13:40 -0000, you wrote:

>Sounds like this would be pushing my limited electronics knowledge.
>

Couldn't be easier with a ULN2003 - pins 1-7 connect to a parallel
port pins or TTL signal or whatever, Pin 8 is ground, Pin 9 is Input
Power , Pins 10-16 are the outputs.

eg - +12V to pin 9, connect Pin1 to parallel port, say pin 11, apply a
signal to // port pin 11 and you get +12V at ULN Pin16. Remove the
signal and Pin16 switches off. Great for driving relays for spindle,
coolant etc.


Steve Blackmore
--
Pilot Consultancy Limited ***** Computer Consultants
Telephone 01744 752256 Mobile 07831 768478
Email: steve@... WWW: http://www.pilotltd.net