Newbie Question about switch..

Thewhistler · Post by **Thewhistler** » Sat Jul 07, 2007 4:59 pm

Hi !

I just wondered if any1 could answer this question...

All i want to do is to connect a hardware switch to the io warrior.
The switch has three states. 1,2 and 3
Then i want to read these states in some bit of C# code on my windows
PC.

Would this be easy to do with the I/O warrior, or even better has anyone done this and in that case could post some info about it ?

Best Regards
Tor-Erik

Guido Körber · Post by **Guido Körber** » Sat Jul 07, 2007 11:24 pm

Three states do not fit into a bit, a bit can have only two states, not three. Depending on the physical topology of your switch you will need to use two or three input pins on the IO-Warrior. And this is a very easy thing to do.

Thewhistler · Post by **Thewhistler** » Sun Jul 08, 2007 4:02 pm

Great news !

Gonna order some units for prototyping then.
i guess an IOwarrior24 starter kit would do the trick then.

If this work out okay i gonna need alott more units. This gonna
be a part of a simulator system in our company :)

Thewhistler · Post by **Thewhistler** » Mon Jul 09, 2007 1:33 pm

Okay three states of my swithc is kinda wrong. sorry for my bad language :)
The swith has only to main states wich is state1 and state2 (up and down)
and the third isnt used and that is center.

So if i understand this correctly all i have to do is to connect
the center position to common ground. Then i connect the "up state"
from the switch to Pin1 on the IOW24 and then i connect the "down state"
to pin2 on the IOW24 ?
This will set 0 or 1 bit on the two different ports of the iow24 i guess. so then i just read ou those ports via some C# code.

Thanks again for your reply...

Best Regards
Tor-Erik

Guido Körber · Post by **Guido Körber** » Mon Jul 09, 2007 2:53 pm

Yes, correct.