Creating output to circuit using VB.NET


I am developing a system that is designed to trigger off switches on an independant circuit, dpending upon the values received from it.

For example, if i want switch 1 to be powered on i send a signal that would say power pin1 on a parallel connection?

Is there anyway of sending signals to several switches that are on/off using an output from a PC, e.g. USB, parallel port etc. Using visual basic programming?


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You have no direct access to the workings of teh hardware in quite that way but can exploit some of their standard functionality

You can use the CRs232 ( ) class which controls comm ports primarily to alter the DTR and RTS lines of the comm port to on or off which is essentially what you are asking for... unfortunately that limits you to 2 switches unless you use some and or logic gates.

hope this helps just ask for more info or ideas

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