simple switch thru serial port?

Guest · Posted: Thu Apr 15, 2004 5:40 am

Is it possible to connect a simple switch through the serial port without using any active components? If so, which pin/s and how should it be done?

Humberto · Posted: Thu Apr 15, 2004 6:32 am

This was done several years ago !!! Rolling Eyes

http://lcweb2.loc.gov/ammem/atthtml/mrshome.html Idea

Pls explain your application with more details Very Happy

Humberto

Guest · Posted: Thu Apr 15, 2004 7:43 pm

We simply just want a single switch connected to the PC. At the moment we use the game port and use it just for the switch - quite expensive!

We don't want to design a board just for this simple application. We want to cut down on costs.

Imagine having over 100 PCs having a games card for each one. It's too costly.

The PCs will run ca ustom application but require a footswitch connected to each one.

Guest · Posted: Thu Apr 15, 2004 7:46 pm

Humberto, the link http://lcweb2.loc.gov/ammem/atthtml/mrshome.html don't seem to provide any details.

Guest · Posted: Sun Apr 18, 2004 2:04 am

Could you, or anyone else help me on this query.

Humberto · Posted: Sun Apr 18, 2004 6:59 am

Hi Guest(???)

This forum is related to PIC microcontrollers and CCS C Compiler.
The info you are looking for, will be find it in hundreds of sites like:

http://www.reviewcentre.com/reviews32234.html
http://www.lvr.com/parport.htm

It's a matter of kindless but I would prefer you log in to know with whom I'm talking to.

Best regards,

Humberto